./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--ppp--ppp_generic.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/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_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/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--ppp--ppp_generic.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/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_802ac03a-b731-41b5-9afb-882280622b67/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 ed18c341b13cb38f54b1bbde59f9cd5a73bcebd88430e5620ebca0060f7baed5 --- 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 01:50:35,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:50:35,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:50:35,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:50:35,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:50:35,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:50:35,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:50:35,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:50:35,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:50:35,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:50:35,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:50:35,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:50:35,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:50:35,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:50:35,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:50:35,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:50:35,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:50:35,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:50:35,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:50:35,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:50:35,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:50:35,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:50:35,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:50:35,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:50:35,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:50:35,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:50:35,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:50:35,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:50:35,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:50:35,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:50:35,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:50:35,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:50:35,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:50:35,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:50:35,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:50:35,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:50:35,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:50:35,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:50:35,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:50:35,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:50:35,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:50:35,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:50:35,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:50:35,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:50:35,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:50:35,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:50:35,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:50:35,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:50:35,629 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:50:35,630 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:50:35,630 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:50:35,630 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:50:35,631 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:50:35,631 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:50:35,631 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:50:35,632 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:50:35,632 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:50:35,632 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:50:35,632 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:50:35,633 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:50:35,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:50:35,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:50:35,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:50:35,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:50:35,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:50:35,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:50:35,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:50:35,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:50:35,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:50:35,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:50:35,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:50:35,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:50:35,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:50:35,636 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:50:35,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:50:35,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:50:35,637 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:50:35,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:50:35,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:50:35,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:50:35,638 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_802ac03a-b731-41b5-9afb-882280622b67/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed18c341b13cb38f54b1bbde59f9cd5a73bcebd88430e5620ebca0060f7baed5 [2022-11-03 01:50:35,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:50:35,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:50:35,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:50:35,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:50:35,950 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:50:35,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/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--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-11-03 01:50:36,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/data/bde5b325e/7a27c55c55c448b2a258bece408dd4ef/FLAGce3d3a551 [2022-11-03 01:50:36,971 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:50:36,972 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-11-03 01:50:37,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/data/bde5b325e/7a27c55c55c448b2a258bece408dd4ef/FLAGce3d3a551 [2022-11-03 01:50:37,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/data/bde5b325e/7a27c55c55c448b2a258bece408dd4ef [2022-11-03 01:50:37,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:50:37,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:50:37,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:50:37,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:50:37,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:50:37,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:50:37" (1/1) ... [2022-11-03 01:50:37,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce2dc54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:37, skipping insertion in model container [2022-11-03 01:50:37,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:50:37" (1/1) ... [2022-11-03 01:50:37,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:50:37,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:50:39,309 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_802ac03a-b731-41b5-9afb-882280622b67/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2022-11-03 01:50:40,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:50:40,285 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:50:40,515 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_802ac03a-b731-41b5-9afb-882280622b67/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2022-11-03 01:50:40,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:50:40,892 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:50:40,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40 WrapperNode [2022-11-03 01:50:40,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:50:40,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:50:40,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:50:40,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:50:40,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,258 INFO L138 Inliner]: procedures = 375, calls = 2229, calls flagged for inlining = 193, calls inlined = 191, statements flattened = 6424 [2022-11-03 01:50:41,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:50:41,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:50:41,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:50:41,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:50:41,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,661 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:50:41,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:50:41,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:50:41,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:50:41,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (1/1) ... [2022-11-03 01:50:41,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:50:41,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:50:41,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:50:41,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:50:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_destroy [2022-11-03 01:50:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_destroy [2022-11-03 01:50:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-03 01:50:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-03 01:50:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-03 01:50:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-03 01:50:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-03 01:50:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-03 01:50:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 01:50:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-03 01:50:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-03 01:50:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:50:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:50:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:50:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:50:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-03 01:50:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-03 01:50:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-03 01:50:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-03 01:50:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-03 01:50:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-03 01:50:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-03 01:50:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-03 01:50:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-03 01:50:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-03 01:50:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-03 01:50:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-03 01:50:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 01:50:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 01:50:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 01:50:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 01:50:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 01:50:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 01:50:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:50:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:50:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-03 01:50:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-03 01:50:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-03 01:50:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-03 01:50:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-03 01:50:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-03 01:50:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-03 01:50:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-03 01:50:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 01:50:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 01:50:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-03 01:50:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-03 01:50:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 01:50:41,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 01:50:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-03 01:50:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-03 01:50:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 01:50:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 01:50:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:50:41,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:50:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-03 01:50:41,823 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-03 01:50:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:50:41,823 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:50:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:50:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:50:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:50:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:50:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-03 01:50:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-03 01:50:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_19 [2022-11-03 01:50:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_19 [2022-11-03 01:50:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-03 01:50:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-03 01:50:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-03 01:50:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-03 01:50:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:50:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:50:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:50:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-03 01:50:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-03 01:50:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-03 01:50:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-03 01:50:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:50:41,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-03 01:50:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-03 01:50:41,828 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2022-11-03 01:50:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2022-11-03 01:50:41,829 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-03 01:50:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-03 01:50:41,829 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 01:50:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 01:50:41,830 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2022-11-03 01:50:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2022-11-03 01:50:41,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:50:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:50:41,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:50:41,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:50:41,832 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2022-11-03 01:50:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2022-11-03 01:50:41,832 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-03 01:50:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-03 01:50:41,833 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 01:50:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 01:50:41,833 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 01:50:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 01:50:41,833 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_create [2022-11-03 01:50:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_create [2022-11-03 01:50:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 01:50:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 01:50:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 01:50:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 01:50:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-03 01:50:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-03 01:50:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 01:50:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 01:50:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:50:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:50:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:50:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:50:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-03 01:50:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-03 01:50:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-03 01:50:41,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-03 01:50:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 01:50:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 01:50:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-03 01:50:41,849 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-03 01:50:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:50:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 01:50:41,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 01:50:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 01:50:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 01:50:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-03 01:50:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-03 01:50:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 01:50:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 01:50:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-03 01:50:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-03 01:50:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2022-11-03 01:50:41,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2022-11-03 01:50:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:50:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-03 01:50:41,851 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-03 01:50:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 01:50:41,851 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 01:50:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:50:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:50:41,852 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:50:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-03 01:50:41,852 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-03 01:50:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2022-11-03 01:50:41,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2022-11-03 01:50:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-03 01:50:41,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-03 01:50:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-03 01:50:41,853 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-03 01:50:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-03 01:50:41,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-03 01:50:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-11-03 01:50:41,853 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-11-03 01:50:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2022-11-03 01:50:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2022-11-03 01:50:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2022-11-03 01:50:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2022-11-03 01:50:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-03 01:50:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-03 01:50:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_16 [2022-11-03 01:50:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_16 [2022-11-03 01:50:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-03 01:50:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-03 01:50:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-03 01:50:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-03 01:50:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-03 01:50:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-03 01:50:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-03 01:50:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-03 01:50:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:50:41,856 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:50:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-03 01:50:41,856 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-03 01:50:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2022-11-03 01:50:41,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2022-11-03 01:50:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-03 01:50:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-03 01:50:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:50:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 01:50:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 01:50:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-03 01:50:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-03 01:50:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-03 01:50:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-03 01:50:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2022-11-03 01:50:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2022-11-03 01:50:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:50:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:50:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-03 01:50:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-03 01:50:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-03 01:50:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-03 01:50:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:50:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 01:50:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 01:50:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 01:50:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 01:50:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 01:50:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 01:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 01:50:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 01:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-03 01:50:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-03 01:50:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:50:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:50:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-03 01:50:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-03 01:50:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 01:50:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 01:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2022-11-03 01:50:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2022-11-03 01:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 01:50:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 01:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 01:50:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 01:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 01:50:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 01:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-03 01:50:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-03 01:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 01:50:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 01:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-03 01:50:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-03 01:50:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:50:41,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:50:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2022-11-03 01:50:41,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2022-11-03 01:50:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 01:50:41,864 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 01:50:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2022-11-03 01:50:41,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2022-11-03 01:50:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-03 01:50:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-03 01:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 01:50:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 01:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-11-03 01:50:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-11-03 01:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-03 01:50:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-03 01:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_44 [2022-11-03 01:50:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_44 [2022-11-03 01:50:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-11-03 01:50:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-11-03 01:50:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:50:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-03 01:50:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-03 01:50:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 01:50:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 01:50:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:50:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:50:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 01:50:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 01:50:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-03 01:50:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-03 01:50:42,958 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:50:42,965 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:50:43,452 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:50:47,638 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:50:49,621 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:50:49,621 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 01:50:49,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:50:49 BoogieIcfgContainer [2022-11-03 01:50:49,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:50:49,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:50:49,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:50:49,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:50:49,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:50:37" (1/3) ... [2022-11-03 01:50:49,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eca8d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:50:49, skipping insertion in model container [2022-11-03 01:50:49,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:40" (2/3) ... [2022-11-03 01:50:49,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eca8d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:50:49, skipping insertion in model container [2022-11-03 01:50:49,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:50:49" (3/3) ... [2022-11-03 01:50:49,635 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-11-03 01:50:49,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:50:49,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:50:49,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:50:49,767 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;@3c07c765, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:50:49,767 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:50:49,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 1650 states, 1013 states have (on average 1.3563672260612043) internal successors, (1374), 1072 states have internal predecessors, (1374), 515 states have call successors, (515), 121 states have call predecessors, (515), 120 states have return successors, (510), 497 states have call predecessors, (510), 510 states have call successors, (510) [2022-11-03 01:50:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-03 01:50:49,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:49,792 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:50:49,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:49,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:49,797 INFO L85 PathProgramCache]: Analyzing trace with hash -106518460, now seen corresponding path program 1 times [2022-11-03 01:50:49,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:49,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321990840] [2022-11-03 01:50:49,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:49,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-03 01:50:50,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:50,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321990840] [2022-11-03 01:50:50,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321990840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:50,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:50,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:50:50,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854108576] [2022-11-03 01:50:50,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:50,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:50:50,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:50,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:50:50,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:50:50,905 INFO L87 Difference]: Start difference. First operand has 1650 states, 1013 states have (on average 1.3563672260612043) internal successors, (1374), 1072 states have internal predecessors, (1374), 515 states have call successors, (515), 121 states have call predecessors, (515), 120 states have return successors, (510), 497 states have call predecessors, (510), 510 states have call successors, (510) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-03 01:50:54,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:56,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:59,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:51:00,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:00,837 INFO L93 Difference]: Finished difference Result 4888 states and 7388 transitions. [2022-11-03 01:51:00,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:51:00,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 64 [2022-11-03 01:51:00,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:00,896 INFO L225 Difference]: With dead ends: 4888 [2022-11-03 01:51:00,896 INFO L226 Difference]: Without dead ends: 3218 [2022-11-03 01:51:00,910 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 01:51:00,913 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2338 mSDsluCounter, 5419 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 7557 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:00,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 7557 Invalid, 867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 857 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2022-11-03 01:51:00,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2022-11-03 01:51:01,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3214. [2022-11-03 01:51:01,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 1978 states have (on average 1.3437815975733063) internal successors, (2658), 2078 states have internal predecessors, (2658), 997 states have call successors, (997), 239 states have call predecessors, (997), 238 states have return successors, (1090), 972 states have call predecessors, (1090), 996 states have call successors, (1090) [2022-11-03 01:51:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 4745 transitions. [2022-11-03 01:51:01,300 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 4745 transitions. Word has length 64 [2022-11-03 01:51:01,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:01,300 INFO L495 AbstractCegarLoop]: Abstraction has 3214 states and 4745 transitions. [2022-11-03 01:51:01,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-03 01:51:01,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 4745 transitions. [2022-11-03 01:51:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-03 01:51:01,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:01,323 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:01,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:51:01,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1622572259, now seen corresponding path program 1 times [2022-11-03 01:51:01,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:01,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155025819] [2022-11-03 01:51:01,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:01,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:01,682 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-03 01:51:01,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:01,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155025819] [2022-11-03 01:51:01,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155025819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:01,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:01,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:51:01,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055961821] [2022-11-03 01:51:01,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:01,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:01,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:01,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:01,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:01,689 INFO L87 Difference]: Start difference. First operand 3214 states and 4745 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:51:05,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:07,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:09,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:09,347 INFO L93 Difference]: Finished difference Result 9404 states and 13994 transitions. [2022-11-03 01:51:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:09,352 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2022-11-03 01:51:09,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:09,415 INFO L225 Difference]: With dead ends: 9404 [2022-11-03 01:51:09,415 INFO L226 Difference]: Without dead ends: 6207 [2022-11-03 01:51:09,437 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 01:51:09,438 INFO L413 NwaCegarLoop]: 2889 mSDtfsCounter, 2251 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2251 SdHoareTripleChecker+Valid, 4937 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:09,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2251 Valid, 4937 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 630 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-03 01:51:09,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6207 states. [2022-11-03 01:51:09,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6207 to 6165. [2022-11-03 01:51:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6165 states, 3787 states have (on average 1.343807763401109) internal successors, (5089), 3992 states have internal predecessors, (5089), 1912 states have call successors, (1912), 466 states have call predecessors, (1912), 465 states have return successors, (2221), 1856 states have call predecessors, (2221), 1911 states have call successors, (2221) [2022-11-03 01:51:09,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6165 states to 6165 states and 9222 transitions. [2022-11-03 01:51:09,879 INFO L78 Accepts]: Start accepts. Automaton has 6165 states and 9222 transitions. Word has length 96 [2022-11-03 01:51:09,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:09,881 INFO L495 AbstractCegarLoop]: Abstraction has 6165 states and 9222 transitions. [2022-11-03 01:51:09,881 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:51:09,882 INFO L276 IsEmpty]: Start isEmpty. Operand 6165 states and 9222 transitions. [2022-11-03 01:51:09,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-03 01:51:09,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:09,889 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:51:09,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:51:09,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:09,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:09,890 INFO L85 PathProgramCache]: Analyzing trace with hash -670625585, now seen corresponding path program 1 times [2022-11-03 01:51:09,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:09,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852180805] [2022-11-03 01:51:09,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:09,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:10,172 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 01:51:10,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:10,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852180805] [2022-11-03 01:51:10,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852180805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:10,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:10,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:51:10,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019917020] [2022-11-03 01:51:10,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:10,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:10,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:10,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:10,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:10,175 INFO L87 Difference]: Start difference. First operand 6165 states and 9222 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:51:13,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:16,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:17,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:17,945 INFO L93 Difference]: Finished difference Result 16474 states and 24461 transitions. [2022-11-03 01:51:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:17,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2022-11-03 01:51:17,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:18,024 INFO L225 Difference]: With dead ends: 16474 [2022-11-03 01:51:18,024 INFO L226 Difference]: Without dead ends: 10326 [2022-11-03 01:51:18,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:18,067 INFO L413 NwaCegarLoop]: 3291 mSDtfsCounter, 1584 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 5332 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:18,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 5332 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 744 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-11-03 01:51:18,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10326 states. [2022-11-03 01:51:18,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10326 to 10313. [2022-11-03 01:51:18,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10313 states, 6327 states have (on average 1.3360202307570728) internal successors, (8453), 6694 states have internal predecessors, (8453), 3123 states have call successors, (3123), 863 states have call predecessors, (3123), 862 states have return successors, (3670), 3023 states have call predecessors, (3670), 3122 states have call successors, (3670) [2022-11-03 01:51:18,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10313 states to 10313 states and 15246 transitions. [2022-11-03 01:51:18,741 INFO L78 Accepts]: Start accepts. Automaton has 10313 states and 15246 transitions. Word has length 102 [2022-11-03 01:51:18,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:18,741 INFO L495 AbstractCegarLoop]: Abstraction has 10313 states and 15246 transitions. [2022-11-03 01:51:18,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:51:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 10313 states and 15246 transitions. [2022-11-03 01:51:18,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-03 01:51:18,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:18,753 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 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] [2022-11-03 01:51:18,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:51:18,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:18,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:18,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1953492477, now seen corresponding path program 1 times [2022-11-03 01:51:18,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:18,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117405627] [2022-11-03 01:51:18,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:18,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-03 01:51:19,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:19,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117405627] [2022-11-03 01:51:19,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117405627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:19,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:19,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:51:19,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134601859] [2022-11-03 01:51:19,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:19,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:19,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:19,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:19,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:19,028 INFO L87 Difference]: Start difference. First operand 10313 states and 15246 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 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 01:51:21,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:51:23,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:23,870 INFO L93 Difference]: Finished difference Result 23170 states and 33921 transitions. [2022-11-03 01:51:23,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:23,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 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 130 [2022-11-03 01:51:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:23,956 INFO L225 Difference]: With dead ends: 23170 [2022-11-03 01:51:23,956 INFO L226 Difference]: Without dead ends: 12874 [2022-11-03 01:51:24,006 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 01:51:24,007 INFO L413 NwaCegarLoop]: 2322 mSDtfsCounter, 2325 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2326 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:24,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2326 Valid, 3100 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-03 01:51:24,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12874 states. [2022-11-03 01:51:24,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12874 to 12869. [2022-11-03 01:51:24,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12869 states, 7819 states have (on average 1.325105512213838) internal successors, (10361), 8276 states have internal predecessors, (10361), 3865 states have call successors, (3865), 1185 states have call predecessors, (3865), 1184 states have return successors, (4462), 3745 states have call predecessors, (4462), 3864 states have call successors, (4462) [2022-11-03 01:51:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12869 states to 12869 states and 18688 transitions. [2022-11-03 01:51:24,917 INFO L78 Accepts]: Start accepts. Automaton has 12869 states and 18688 transitions. Word has length 130 [2022-11-03 01:51:24,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:24,917 INFO L495 AbstractCegarLoop]: Abstraction has 12869 states and 18688 transitions. [2022-11-03 01:51:24,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 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 01:51:24,918 INFO L276 IsEmpty]: Start isEmpty. Operand 12869 states and 18688 transitions. [2022-11-03 01:51:24,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-03 01:51:24,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:24,933 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 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] [2022-11-03 01:51:24,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:51:24,933 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:24,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:24,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1639770376, now seen corresponding path program 1 times [2022-11-03 01:51:24,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:24,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559379222] [2022-11-03 01:51:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:24,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-03 01:51:25,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:25,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559379222] [2022-11-03 01:51:25,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559379222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:25,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:25,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:51:25,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305487859] [2022-11-03 01:51:25,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:25,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:25,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:25,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:25,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:25,225 INFO L87 Difference]: Start difference. First operand 12869 states and 18688 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 01:51:28,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:51:30,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:32,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:34,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:35,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:35,611 INFO L93 Difference]: Finished difference Result 31384 states and 45476 transitions. [2022-11-03 01:51:35,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:35,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 136 [2022-11-03 01:51:35,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:35,716 INFO L225 Difference]: With dead ends: 31384 [2022-11-03 01:51:35,716 INFO L226 Difference]: Without dead ends: 18532 [2022-11-03 01:51:35,909 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 01:51:35,910 INFO L413 NwaCegarLoop]: 3074 mSDtfsCounter, 1646 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 5119 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:35,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 5119 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 709 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2022-11-03 01:51:35,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18532 states. [2022-11-03 01:51:36,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18532 to 18519. [2022-11-03 01:51:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18519 states, 11269 states have (on average 1.3221226373236312) internal successors, (14899), 11941 states have internal predecessors, (14899), 5495 states have call successors, (5495), 1755 states have call predecessors, (5495), 1754 states have return successors, (6369), 5317 states have call predecessors, (6369), 5494 states have call successors, (6369) [2022-11-03 01:51:36,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18519 states to 18519 states and 26763 transitions. [2022-11-03 01:51:36,923 INFO L78 Accepts]: Start accepts. Automaton has 18519 states and 26763 transitions. Word has length 136 [2022-11-03 01:51:36,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:36,924 INFO L495 AbstractCegarLoop]: Abstraction has 18519 states and 26763 transitions. [2022-11-03 01:51:36,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 01:51:36,924 INFO L276 IsEmpty]: Start isEmpty. Operand 18519 states and 26763 transitions. [2022-11-03 01:51:36,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-03 01:51:36,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:36,930 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 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] [2022-11-03 01:51:36,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:51:36,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:36,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:36,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1602127244, now seen corresponding path program 1 times [2022-11-03 01:51:36,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:36,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694398091] [2022-11-03 01:51:36,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:36,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-03 01:51:37,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:37,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694398091] [2022-11-03 01:51:37,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694398091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:37,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:37,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:51:37,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623611726] [2022-11-03 01:51:37,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:37,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:51:37,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:37,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:51:37,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:51:37,489 INFO L87 Difference]: Start difference. First operand 18519 states and 26763 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-03 01:51:40,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:51:43,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:44,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:44,779 INFO L93 Difference]: Finished difference Result 37129 states and 55002 transitions. [2022-11-03 01:51:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:51:44,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2022-11-03 01:51:44,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:44,888 INFO L225 Difference]: With dead ends: 37129 [2022-11-03 01:51:44,888 INFO L226 Difference]: Without dead ends: 18627 [2022-11-03 01:51:44,973 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 01:51:44,974 INFO L413 NwaCegarLoop]: 2094 mSDtfsCounter, 2 mSDsluCounter, 7089 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8358 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:44,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8358 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1124 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-03 01:51:44,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18627 states. [2022-11-03 01:51:45,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18627 to 18603. [2022-11-03 01:51:46,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18603 states, 11329 states have (on average 1.3204166298878983) internal successors, (14959), 12007 states have internal predecessors, (14959), 5495 states have call successors, (5495), 1755 states have call predecessors, (5495), 1778 states have return successors, (6455), 5335 states have call predecessors, (6455), 5494 states have call successors, (6455) [2022-11-03 01:51:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18603 states to 18603 states and 26909 transitions. [2022-11-03 01:51:46,104 INFO L78 Accepts]: Start accepts. Automaton has 18603 states and 26909 transitions. Word has length 136 [2022-11-03 01:51:46,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:46,105 INFO L495 AbstractCegarLoop]: Abstraction has 18603 states and 26909 transitions. [2022-11-03 01:51:46,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-03 01:51:46,106 INFO L276 IsEmpty]: Start isEmpty. Operand 18603 states and 26909 transitions. [2022-11-03 01:51:46,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-03 01:51:46,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:46,111 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:46,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:51:46,111 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:46,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:46,112 INFO L85 PathProgramCache]: Analyzing trace with hash 669586953, now seen corresponding path program 1 times [2022-11-03 01:51:46,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:46,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761484007] [2022-11-03 01:51:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:46,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:46,877 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-03 01:51:46,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:46,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761484007] [2022-11-03 01:51:46,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761484007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:46,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:46,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 01:51:46,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47655519] [2022-11-03 01:51:46,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:46,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 01:51:46,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:46,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 01:51:46,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:51:46,880 INFO L87 Difference]: Start difference. First operand 18603 states and 26909 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 01:51:55,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:56,760 INFO L93 Difference]: Finished difference Result 37321 states and 55130 transitions. [2022-11-03 01:51:56,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 01:51:56,760 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2022-11-03 01:51:56,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:56,848 INFO L225 Difference]: With dead ends: 37321 [2022-11-03 01:51:56,848 INFO L226 Difference]: Without dead ends: 18735 [2022-11-03 01:51:56,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-03 01:51:56,924 INFO L413 NwaCegarLoop]: 2113 mSDtfsCounter, 20 mSDsluCounter, 19017 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 18936 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:56,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 18936 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2596 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-11-03 01:51:56,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18735 states. [2022-11-03 01:51:57,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18735 to 18687. [2022-11-03 01:51:57,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18687 states, 11389 states have (on average 1.3187285977697778) internal successors, (15019), 12067 states have internal predecessors, (15019), 5501 states have call successors, (5501), 1755 states have call predecessors, (5501), 1796 states have return successors, (6533), 5359 states have call predecessors, (6533), 5500 states have call successors, (6533) [2022-11-03 01:51:57,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18687 states to 18687 states and 27053 transitions. [2022-11-03 01:51:57,934 INFO L78 Accepts]: Start accepts. Automaton has 18687 states and 27053 transitions. Word has length 150 [2022-11-03 01:51:57,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:57,935 INFO L495 AbstractCegarLoop]: Abstraction has 18687 states and 27053 transitions. [2022-11-03 01:51:57,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 01:51:57,936 INFO L276 IsEmpty]: Start isEmpty. Operand 18687 states and 27053 transitions. [2022-11-03 01:51:57,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-03 01:51:57,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:57,942 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:57,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:51:57,942 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:57,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:57,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1158765685, now seen corresponding path program 1 times [2022-11-03 01:51:57,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:57,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430320180] [2022-11-03 01:51:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:57,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-11-03 01:51:58,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:58,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430320180] [2022-11-03 01:51:58,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430320180] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:51:58,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334105394] [2022-11-03 01:51:58,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:58,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:58,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:51:58,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:51:58,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:51:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:59,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 2637 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:51:59,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:51:59,845 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-03 01:51:59,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:51:59,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334105394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:59,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:51:59,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-03 01:51:59,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494824416] [2022-11-03 01:51:59,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:59,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:59,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:59,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:59,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:51:59,847 INFO L87 Difference]: Start difference. First operand 18687 states and 27053 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 01:52:02,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:52:05,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:06,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:52:06,526 INFO L93 Difference]: Finished difference Result 37407 states and 54102 transitions. [2022-11-03 01:52:06,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:52:06,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 156 [2022-11-03 01:52:06,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:52:06,630 INFO L225 Difference]: With dead ends: 37407 [2022-11-03 01:52:06,630 INFO L226 Difference]: Without dead ends: 18686 [2022-11-03 01:52:06,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:52:06,730 INFO L413 NwaCegarLoop]: 2433 mSDtfsCounter, 2202 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:52:06,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 3322 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 449 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-11-03 01:52:06,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18686 states. [2022-11-03 01:52:07,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18686 to 18674. [2022-11-03 01:52:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18674 states, 11365 states have (on average 1.3163220413550374) internal successors, (14960), 12040 states have internal predecessors, (14960), 5497 states have call successors, (5497), 1768 states have call predecessors, (5497), 1811 states have return successors, (6508), 5355 states have call predecessors, (6508), 5496 states have call successors, (6508) [2022-11-03 01:52:07,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18674 states to 18674 states and 26965 transitions. [2022-11-03 01:52:07,940 INFO L78 Accepts]: Start accepts. Automaton has 18674 states and 26965 transitions. Word has length 156 [2022-11-03 01:52:07,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:52:07,940 INFO L495 AbstractCegarLoop]: Abstraction has 18674 states and 26965 transitions. [2022-11-03 01:52:07,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 01:52:07,941 INFO L276 IsEmpty]: Start isEmpty. Operand 18674 states and 26965 transitions. [2022-11-03 01:52:07,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-03 01:52:07,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:52:07,949 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:52:07,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:52:08,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:52:08,173 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:52:08,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:52:08,173 INFO L85 PathProgramCache]: Analyzing trace with hash 535908604, now seen corresponding path program 1 times [2022-11-03 01:52:08,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:52:08,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59700553] [2022-11-03 01:52:08,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:08,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:52:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:15,439 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-11-03 01:52:15,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:52:15,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59700553] [2022-11-03 01:52:15,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59700553] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:52:15,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865871947] [2022-11-03 01:52:15,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:15,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:52:15,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:52:15,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:52:15,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:52:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:16,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 2701 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 01:52:16,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:52:16,754 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-03 01:52:16,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:52:16,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865871947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:52:16,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:52:16,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [24] total 27 [2022-11-03 01:52:16,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966123487] [2022-11-03 01:52:16,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:52:16,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:52:16,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:52:16,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:52:16,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2022-11-03 01:52:16,758 INFO L87 Difference]: Start difference. First operand 18674 states and 26965 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 01:52:21,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:22,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:52:22,344 INFO L93 Difference]: Finished difference Result 37182 states and 53715 transitions. [2022-11-03 01:52:22,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:52:22,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 164 [2022-11-03 01:52:22,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:52:22,435 INFO L225 Difference]: With dead ends: 37182 [2022-11-03 01:52:22,435 INFO L226 Difference]: Without dead ends: 18670 [2022-11-03 01:52:22,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-11-03 01:52:22,488 INFO L413 NwaCegarLoop]: 2083 mSDtfsCounter, 3 mSDsluCounter, 7064 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8327 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:52:22,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8327 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1109 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 01:52:22,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18670 states. [2022-11-03 01:52:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18670 to 18670. [2022-11-03 01:52:23,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18670 states, 11363 states have (on average 1.3162897122238846) internal successors, (14957), 12038 states have internal predecessors, (14957), 5496 states have call successors, (5496), 1767 states have call predecessors, (5496), 1810 states have return successors, (6507), 5354 states have call predecessors, (6507), 5495 states have call successors, (6507) [2022-11-03 01:52:23,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18670 states to 18670 states and 26960 transitions. [2022-11-03 01:52:23,465 INFO L78 Accepts]: Start accepts. Automaton has 18670 states and 26960 transitions. Word has length 164 [2022-11-03 01:52:23,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:52:23,466 INFO L495 AbstractCegarLoop]: Abstraction has 18670 states and 26960 transitions. [2022-11-03 01:52:23,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 01:52:23,466 INFO L276 IsEmpty]: Start isEmpty. Operand 18670 states and 26960 transitions. [2022-11-03 01:52:23,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-03 01:52:23,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:52:23,473 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:52:23,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:52:23,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:52:23,701 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:52:23,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:52:23,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1547338869, now seen corresponding path program 1 times [2022-11-03 01:52:23,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:52:23,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764432090] [2022-11-03 01:52:23,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:23,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:52:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:29,685 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-11-03 01:52:29,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:52:29,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764432090] [2022-11-03 01:52:29,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764432090] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:52:29,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389649911] [2022-11-03 01:52:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:29,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:52:29,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:52:29,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:52:29,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:52:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:30,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 2783 conjuncts, 118 conjunts are in the unsatisfiable core [2022-11-03 01:52:30,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:52:30,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:31,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:31,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:31,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:31,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:31,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:31,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:31,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:31,788 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:52:31,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-03 01:52:31,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:31,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-03 01:52:32,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-03 01:52:32,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:32,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-03 01:52:32,696 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:52:32,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-03 01:52:32,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:33,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 01:52:33,368 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 6 treesize of output 5 [2022-11-03 01:52:33,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 01:52:33,501 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 6 treesize of output 5 [2022-11-03 01:52:33,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 01:52:33,593 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 6 treesize of output 5 [2022-11-03 01:52:33,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 01:52:35,176 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:52:35,176 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-03 01:52:35,184 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 01:52:35,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:35,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:35,647 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:52:35,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 25 [2022-11-03 01:52:35,667 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:52:35,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-03 01:52:35,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-03 01:52:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-03 01:52:35,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:52:36,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389649911] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:52:36,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [542077125] [2022-11-03 01:52:36,638 INFO L159 IcfgInterpreter]: Started Sifa with 112 locations of interest [2022-11-03 01:52:36,638 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:52:36,642 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:52:36,648 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:52:36,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:52:39,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1044 treesize of output 841 [2022-11-03 01:52:40,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1052 treesize of output 849 [2022-11-03 01:52:44,224 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 01:52:44,230 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 01:52:44,237 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 01:52:47,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:47,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:48,439 INFO L244 Elim1Store]: Index analysis took 890 ms [2022-11-03 01:52:48,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 298 select indices, 298 select index equivalence classes, 2810 disjoint index pairs (out of 44253 index pairs), introduced 298 new quantified variables, introduced 0 case distinctions, treesize of input 2543 treesize of output 895 [2022-11-03 01:52:55,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:55,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:52:56,328 INFO L244 Elim1Store]: Index analysis took 1158 ms [2022-11-03 01:52:56,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 298 select indices, 298 select index equivalence classes, 2810 disjoint index pairs (out of 44253 index pairs), introduced 298 new quantified variables, introduced 0 case distinctions, treesize of input 2543 treesize of output 895 [2022-11-03 01:53:00,603 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 01:53:00,670 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 01:53:00,707 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 01:53:02,911 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 01:53:02,947 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 01:53:03,019 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 01:53:11,041 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 01:53:11,098 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 01:53:11,138 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 01:53:14,633 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 01:53:14,680 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 01:53:14,739 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 01:53:20,177 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 01:53:20,236 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 01:53:22,840 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 01:53:22,925 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 01:53:24,719 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 01:53:24,948 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 01:53:36,258 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 01:53:36,397 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 01:53:42,213 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 01:53:42,277 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 01:54:00,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:00,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 01:54:00,889 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:218) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 01:54:00,892 INFO L158 Benchmark]: Toolchain (without parser) took 203532.16ms. Allocated memory was 113.2MB in the beginning and 3.3GB in the end (delta: 3.2GB). Free memory was 62.7MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2022-11-03 01:54:00,892 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:54:00,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3530.03ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 62.4MB in the beginning and 57.4MB in the end (delta: 5.0MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2022-11-03 01:54:00,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 364.78ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 57.4MB in the beginning and 110.6MB in the end (delta: -53.2MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-11-03 01:54:00,893 INFO L158 Benchmark]: Boogie Preprocessor took 470.64ms. Allocated memory is still 207.6MB. Free memory was 110.6MB in the beginning and 102.1MB in the end (delta: 8.5MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2022-11-03 01:54:00,893 INFO L158 Benchmark]: RCFGBuilder took 7895.96ms. Allocated memory was 207.6MB in the beginning and 482.3MB in the end (delta: 274.7MB). Free memory was 101.2MB in the beginning and 155.5MB in the end (delta: -54.4MB). Peak memory consumption was 266.9MB. Max. memory is 16.1GB. [2022-11-03 01:54:00,894 INFO L158 Benchmark]: TraceAbstraction took 191262.56ms. Allocated memory was 482.3MB in the beginning and 3.3GB in the end (delta: 2.8GB). Free memory was 155.5MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2022-11-03 01:54:00,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3530.03ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 62.4MB in the beginning and 57.4MB in the end (delta: 5.0MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 364.78ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 57.4MB in the beginning and 110.6MB in the end (delta: -53.2MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 470.64ms. Allocated memory is still 207.6MB. Free memory was 110.6MB in the beginning and 102.1MB in the end (delta: 8.5MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * RCFGBuilder took 7895.96ms. Allocated memory was 207.6MB in the beginning and 482.3MB in the end (delta: 274.7MB). Free memory was 101.2MB in the beginning and 155.5MB in the end (delta: -54.4MB). Peak memory consumption was 266.9MB. Max. memory is 16.1GB. * TraceAbstraction took 191262.56ms. Allocated memory was 482.3MB in the beginning and 3.3GB in the end (delta: 2.8GB). Free memory was 155.5MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-03 01:54:00,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/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_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/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--ppp--ppp_generic.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/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 ed18c341b13cb38f54b1bbde59f9cd5a73bcebd88430e5620ebca0060f7baed5 --- 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 01:54:03,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:54:03,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:54:03,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:54:03,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:54:03,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:54:03,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:54:03,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:54:03,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:54:03,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:54:03,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:54:03,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:54:03,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:54:03,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:54:03,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:54:03,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:54:03,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:54:03,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:54:03,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:54:03,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:54:03,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:54:03,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:54:03,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:54:03,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:54:03,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:54:03,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:54:03,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:54:03,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:54:03,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:54:03,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:54:03,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:54:03,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:54:03,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:54:03,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:54:03,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:54:03,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:54:03,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:54:03,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:54:03,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:54:03,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:54:03,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:54:03,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 01:54:03,458 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:54:03,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:54:03,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:54:03,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:54:03,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:54:03,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:54:03,462 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:54:03,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:54:03,462 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:54:03,462 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:54:03,463 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:54:03,463 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:54:03,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:54:03,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:54:03,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:54:03,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:54:03,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:54:03,466 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 01:54:03,466 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 01:54:03,466 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 01:54:03,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:54:03,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:54:03,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:54:03,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:54:03,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 01:54:03,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:54:03,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:54:03,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:54:03,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:54:03,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:54:03,469 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 01:54:03,469 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 01:54:03,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:54:03,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:54:03,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 01:54:03,470 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed18c341b13cb38f54b1bbde59f9cd5a73bcebd88430e5620ebca0060f7baed5 [2022-11-03 01:54:03,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:54:03,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:54:03,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:54:03,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:54:03,829 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:54:03,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/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--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-11-03 01:54:03,903 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/data/6dd1d7dbd/d42482f0861f491b8b496d8c0151d850/FLAGb0eab8497 [2022-11-03 01:54:04,878 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:54:04,879 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-11-03 01:54:04,923 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/data/6dd1d7dbd/d42482f0861f491b8b496d8c0151d850/FLAGb0eab8497 [2022-11-03 01:54:05,297 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/data/6dd1d7dbd/d42482f0861f491b8b496d8c0151d850 [2022-11-03 01:54:05,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:54:05,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:54:05,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:54:05,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:54:05,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:54:05,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:54:05" (1/1) ... [2022-11-03 01:54:05,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f589382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:05, skipping insertion in model container [2022-11-03 01:54:05,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:54:05" (1/1) ... [2022-11-03 01:54:05,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:54:05,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:54:07,282 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_802ac03a-b731-41b5-9afb-882280622b67/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2022-11-03 01:54:08,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:54:08,323 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-03 01:54:08,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:54:08,575 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_802ac03a-b731-41b5-9afb-882280622b67/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2022-11-03 01:54:08,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:54:08,791 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:54:09,057 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_802ac03a-b731-41b5-9afb-882280622b67/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2022-11-03 01:54:09,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:54:09,542 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:54:09,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09 WrapperNode [2022-11-03 01:54:09,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:54:09,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:54:09,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:54:09,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:54:09,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:09,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:09,995 INFO L138 Inliner]: procedures = 391, calls = 2228, calls flagged for inlining = 195, calls inlined = 193, statements flattened = 6280 [2022-11-03 01:54:09,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:54:09,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:54:09,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:54:09,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:54:10,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:10,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:10,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:10,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:10,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:10,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:10,297 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:10,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:10,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:54:10,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:54:10,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:54:10,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:54:10,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (1/1) ... [2022-11-03 01:54:10,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:54:10,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:54:10,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:54:10,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:54:10,491 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-03 01:54:10,492 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-03 01:54:10,492 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 01:54:10,492 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-03 01:54:10,492 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-03 01:54:10,492 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-03 01:54:10,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-03 01:54:10,493 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-03 01:54:10,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-03 01:54:10,493 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 01:54:10,493 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 01:54:10,493 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 01:54:10,494 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 01:54:10,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:54:10,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:54:10,494 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-03 01:54:10,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-03 01:54:10,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-03 01:54:10,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-03 01:54:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-03 01:54:10,495 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-03 01:54:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:54:10,495 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:54:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-03 01:54:10,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-03 01:54:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_19 [2022-11-03 01:54:10,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_19 [2022-11-03 01:54:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-03 01:54:10,496 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-03 01:54:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-03 01:54:10,496 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-03 01:54:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2022-11-03 01:54:10,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2022-11-03 01:54:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-03 01:54:10,497 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-03 01:54:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 01:54:10,497 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 01:54:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:54:10,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:54:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:54:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 01:54:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-03 01:54:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-03 01:54:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 01:54:10,499 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 01:54:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 01:54:10,499 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 01:54:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-03 01:54:10,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-03 01:54:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:54:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:54:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 01:54:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 01:54:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-03 01:54:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-03 01:54:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 01:54:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 01:54:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 01:54:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 01:54:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-03 01:54:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-03 01:54:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-03 01:54:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-03 01:54:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2022-11-03 01:54:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2022-11-03 01:54:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-11-03 01:54:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-11-03 01:54:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2022-11-03 01:54:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2022-11-03 01:54:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-03 01:54:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-03 01:54:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-03 01:54:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-03 01:54:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-03 01:54:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-03 01:54:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 01:54:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 01:54:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-03 01:54:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-03 01:54:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-03 01:54:10,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-03 01:54:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:54:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 01:54:10,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 01:54:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:54:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:54:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:54:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-03 01:54:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-03 01:54:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:54:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:54:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-03 01:54:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-03 01:54:10,507 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-03 01:54:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 01:54:10,507 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 01:54:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2022-11-03 01:54:10,507 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2022-11-03 01:54:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 01:54:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 01:54:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-03 01:54:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-03 01:54:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:54:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:54:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-03 01:54:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-03 01:54:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-03 01:54:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-03 01:54:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_44 [2022-11-03 01:54:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_44 [2022-11-03 01:54:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-03 01:54:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-03 01:54:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-03 01:54:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:54:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:54:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 01:54:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 01:54:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-03 01:54:10,511 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-03 01:54:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_destroy [2022-11-03 01:54:10,511 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_destroy [2022-11-03 01:54:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-03 01:54:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-03 01:54:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-03 01:54:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-03 01:54:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-03 01:54:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-03 01:54:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 01:54:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:54:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-03 01:54:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:54:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:54:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:54:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-03 01:54:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-03 01:54:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-03 01:54:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-03 01:54:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-03 01:54:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-03 01:54:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 01:54:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 01:54:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-03 01:54:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-03 01:54:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2022-11-03 01:54:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2022-11-03 01:54:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 01:54:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 01:54:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-03 01:54:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-03 01:54:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 01:54:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 01:54:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-03 01:54:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-03 01:54:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 01:54:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 01:54:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:54:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:54:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-03 01:54:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-03 01:54:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:54:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:54:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:54:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:54:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-03 01:54:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-03 01:54:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:54:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:54:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:54:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-03 01:54:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-03 01:54:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:54:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-03 01:54:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-03 01:54:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2022-11-03 01:54:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2022-11-03 01:54:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-03 01:54:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-03 01:54:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-03 01:54:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 01:54:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:54:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2022-11-03 01:54:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2022-11-03 01:54:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-03 01:54:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-03 01:54:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 01:54:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 01:54:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_create [2022-11-03 01:54:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_create [2022-11-03 01:54:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 01:54:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 01:54:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 01:54:10,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 01:54:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:54:10,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:54:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-03 01:54:10,522 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-03 01:54:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-03 01:54:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-03 01:54:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 01:54:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 01:54:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_UINT [2022-11-03 01:54:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_UINT [2022-11-03 01:54:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-03 01:54:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-03 01:54:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-03 01:54:10,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-03 01:54:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2022-11-03 01:54:10,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2022-11-03 01:54:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 01:54:10,524 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 01:54:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:54:10,525 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:54:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-03 01:54:10,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-03 01:54:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-03 01:54:10,525 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-03 01:54:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-03 01:54:10,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-03 01:54:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2022-11-03 01:54:10,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2022-11-03 01:54:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-03 01:54:10,526 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-03 01:54:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_16 [2022-11-03 01:54:10,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_16 [2022-11-03 01:54:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-03 01:54:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-03 01:54:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-03 01:54:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-03 01:54:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:54:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:54:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-03 01:54:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-03 01:54:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2022-11-03 01:54:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2022-11-03 01:54:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-03 01:54:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-03 01:54:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-03 01:54:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-03 01:54:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-03 01:54:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-03 01:54:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-03 01:54:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-03 01:54:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2022-11-03 01:54:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2022-11-03 01:54:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:54:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:54:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-03 01:54:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-03 01:54:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 01:54:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 01:54:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 01:54:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 01:54:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 01:54:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 01:54:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 01:54:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 01:54:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 01:54:10,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 01:54:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 01:54:10,532 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 01:54:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-03 01:54:10,532 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-03 01:54:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2022-11-03 01:54:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2022-11-03 01:54:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 01:54:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 01:54:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2022-11-03 01:54:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2022-11-03 01:54:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-11-03 01:54:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-11-03 01:54:10,534 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 01:54:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 01:54:11,456 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:54:11,472 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:54:16,176 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:54:52,630 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:54:52,651 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:54:52,651 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 01:54:52,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:54:52 BoogieIcfgContainer [2022-11-03 01:54:52,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:54:52,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:54:52,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:54:52,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:54:52,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:54:05" (1/3) ... [2022-11-03 01:54:52,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c49d8d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:54:52, skipping insertion in model container [2022-11-03 01:54:52,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:09" (2/3) ... [2022-11-03 01:54:52,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c49d8d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:54:52, skipping insertion in model container [2022-11-03 01:54:52,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:54:52" (3/3) ... [2022-11-03 01:54:52,664 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-11-03 01:54:52,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:54:52,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:54:52,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:54:52,768 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;@7b3659b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:54:52,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:54:52,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 2155 states, 1522 states have (on average 1.3745072273324572) internal successors, (2092), 1581 states have internal predecessors, (2092), 512 states have call successors, (512), 120 states have call predecessors, (512), 119 states have return successors, (507), 494 states have call predecessors, (507), 507 states have call successors, (507) [2022-11-03 01:54:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-03 01:54:52,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:52,798 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:52,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:52,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:52,804 INFO L85 PathProgramCache]: Analyzing trace with hash -604841872, now seen corresponding path program 1 times [2022-11-03 01:54:52,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:52,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759655807] [2022-11-03 01:54:52,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:52,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:52,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:52,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:52,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 01:54:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:54,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:54:54,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-03 01:54:54,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:54,902 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:54,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759655807] [2022-11-03 01:54:54,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759655807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:54,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:54,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:54:54,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514373966] [2022-11-03 01:54:54,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:54,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:54:54,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:54,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:54:54,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:54:54,943 INFO L87 Difference]: Start difference. First operand has 2155 states, 1522 states have (on average 1.3745072273324572) internal successors, (2092), 1581 states have internal predecessors, (2092), 512 states have call successors, (512), 120 states have call predecessors, (512), 119 states have return successors, (507), 494 states have call predecessors, (507), 507 states have call successors, (507) Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-03 01:54:55,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:55,798 INFO L93 Difference]: Finished difference Result 6435 states and 9656 transitions. [2022-11-03 01:54:55,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:54:55,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2022-11-03 01:54:55,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:55,858 INFO L225 Difference]: With dead ends: 6435 [2022-11-03 01:54:55,858 INFO L226 Difference]: Without dead ends: 4238 [2022-11-03 01:54:55,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:54:55,889 INFO L413 NwaCegarLoop]: 3822 mSDtfsCounter, 3088 mSDsluCounter, 10796 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3088 SdHoareTripleChecker+Valid, 14618 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:55,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3088 Valid, 14618 Invalid, 45 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:54:55,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2022-11-03 01:54:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 4234. [2022-11-03 01:54:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 2996 states have (on average 1.3651535380507342) internal successors, (4090), 3100 states have internal predecessors, (4090), 1001 states have call successors, (1001), 237 states have call predecessors, (1001), 236 states have return successors, (1089), 974 states have call predecessors, (1089), 1000 states have call successors, (1089) [2022-11-03 01:54:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6180 transitions. [2022-11-03 01:54:56,226 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6180 transitions. Word has length 69 [2022-11-03 01:54:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:56,228 INFO L495 AbstractCegarLoop]: Abstraction has 4234 states and 6180 transitions. [2022-11-03 01:54:56,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-03 01:54:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6180 transitions. [2022-11-03 01:54:56,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 01:54:56,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:56,248 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-11-03 01:54:56,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:56,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:56,466 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:56,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:56,466 INFO L85 PathProgramCache]: Analyzing trace with hash -18369843, now seen corresponding path program 1 times [2022-11-03 01:54:56,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:56,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501914391] [2022-11-03 01:54:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:56,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:56,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:56,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:56,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 01:54:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:58,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:54:58,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:58,398 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-03 01:54:58,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:58,399 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:58,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501914391] [2022-11-03 01:54:58,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501914391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:58,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:58,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:54:58,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604054765] [2022-11-03 01:54:58,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:58,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:54:58,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:58,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:54:58,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:54:58,403 INFO L87 Difference]: Start difference. First operand 4234 states and 6180 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:54:59,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:59,126 INFO L93 Difference]: Finished difference Result 12382 states and 18156 transitions. [2022-11-03 01:54:59,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:54:59,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2022-11-03 01:54:59,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:59,197 INFO L225 Difference]: With dead ends: 12382 [2022-11-03 01:54:59,198 INFO L226 Difference]: Without dead ends: 8168 [2022-11-03 01:54:59,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 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 01:54:59,217 INFO L413 NwaCegarLoop]: 4040 mSDtfsCounter, 2892 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2892 SdHoareTripleChecker+Valid, 7042 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:59,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2892 Valid, 7042 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:54:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8168 states. [2022-11-03 01:54:59,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8168 to 8115. [2022-11-03 01:54:59,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8115 states, 5731 states have (on average 1.3643343221078346) internal successors, (7819), 5944 states have internal predecessors, (7819), 1921 states have call successors, (1921), 463 states have call predecessors, (1921), 462 states have return successors, (2199), 1861 states have call predecessors, (2199), 1920 states have call successors, (2199) [2022-11-03 01:54:59,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8115 states to 8115 states and 11939 transitions. [2022-11-03 01:54:59,769 INFO L78 Accepts]: Start accepts. Automaton has 8115 states and 11939 transitions. Word has length 105 [2022-11-03 01:54:59,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:59,770 INFO L495 AbstractCegarLoop]: Abstraction has 8115 states and 11939 transitions. [2022-11-03 01:54:59,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:54:59,770 INFO L276 IsEmpty]: Start isEmpty. Operand 8115 states and 11939 transitions. [2022-11-03 01:54:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-03 01:54:59,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:59,777 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:59,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:59,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:59,991 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:59,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:59,992 INFO L85 PathProgramCache]: Analyzing trace with hash 187131378, now seen corresponding path program 1 times [2022-11-03 01:54:59,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:59,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074099271] [2022-11-03 01:54:59,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:59,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:59,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:59,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:00,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 01:55:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:01,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:55:01,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-03 01:55:01,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:01,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:01,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074099271] [2022-11-03 01:55:01,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074099271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:01,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:01,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:01,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095900840] [2022-11-03 01:55:01,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:01,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:01,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:01,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:01,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:01,923 INFO L87 Difference]: Start difference. First operand 8115 states and 11939 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:55:02,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:02,796 INFO L93 Difference]: Finished difference Result 21856 states and 31953 transitions. [2022-11-03 01:55:02,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:02,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-11-03 01:55:02,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:02,891 INFO L225 Difference]: With dead ends: 21856 [2022-11-03 01:55:02,892 INFO L226 Difference]: Without dead ends: 13761 [2022-11-03 01:55:02,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 01:55:02,925 INFO L413 NwaCegarLoop]: 4829 mSDtfsCounter, 2127 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 7836 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:02,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 7836 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:55:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13761 states. [2022-11-03 01:55:03,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13761 to 13735. [2022-11-03 01:55:03,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13735 states, 9715 states have (on average 1.3586206896551725) internal successors, (13199), 10096 states have internal predecessors, (13199), 3155 states have call successors, (3155), 865 states have call predecessors, (3155), 864 states have return successors, (3655), 3049 states have call predecessors, (3655), 3154 states have call successors, (3655) [2022-11-03 01:55:03,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13735 states to 13735 states and 20009 transitions. [2022-11-03 01:55:03,792 INFO L78 Accepts]: Start accepts. Automaton has 13735 states and 20009 transitions. Word has length 108 [2022-11-03 01:55:03,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:03,793 INFO L495 AbstractCegarLoop]: Abstraction has 13735 states and 20009 transitions. [2022-11-03 01:55:03,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:55:03,794 INFO L276 IsEmpty]: Start isEmpty. Operand 13735 states and 20009 transitions. [2022-11-03 01:55:03,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-03 01:55:03,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:03,804 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:03,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:04,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:04,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:04,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:04,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1375457225, now seen corresponding path program 1 times [2022-11-03 01:55:04,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:04,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041475899] [2022-11-03 01:55:04,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:04,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:04,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:04,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:04,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 01:55:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:05,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:55:05,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:06,093 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-11-03 01:55:06,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:06,094 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:06,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041475899] [2022-11-03 01:55:06,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041475899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:06,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:06,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:55:06,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693291793] [2022-11-03 01:55:06,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:06,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:55:06,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:06,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:55:06,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:55:06,097 INFO L87 Difference]: Start difference. First operand 13735 states and 20009 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:55:07,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:07,879 INFO L93 Difference]: Finished difference Result 41161 states and 59951 transitions. [2022-11-03 01:55:07,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:07,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2022-11-03 01:55:07,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:08,028 INFO L225 Difference]: With dead ends: 41161 [2022-11-03 01:55:08,028 INFO L226 Difference]: Without dead ends: 27410 [2022-11-03 01:55:08,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:55:08,087 INFO L413 NwaCegarLoop]: 3823 mSDtfsCounter, 3055 mSDsluCounter, 10698 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3055 SdHoareTripleChecker+Valid, 14521 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:08,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3055 Valid, 14521 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:55:08,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27410 states. [2022-11-03 01:55:09,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27410 to 27284. [2022-11-03 01:55:09,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27284 states, 19296 states have (on average 1.359556384742952) internal successors, (26234), 20048 states have internal predecessors, (26234), 6274 states have call successors, (6274), 1714 states have call predecessors, (6274), 1713 states have return successors, (7275), 6058 states have call predecessors, (7275), 6273 states have call successors, (7275) [2022-11-03 01:55:10,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27284 states to 27284 states and 39783 transitions. [2022-11-03 01:55:10,118 INFO L78 Accepts]: Start accepts. Automaton has 27284 states and 39783 transitions. Word has length 142 [2022-11-03 01:55:10,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:10,119 INFO L495 AbstractCegarLoop]: Abstraction has 27284 states and 39783 transitions. [2022-11-03 01:55:10,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:55:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 27284 states and 39783 transitions. [2022-11-03 01:55:10,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-03 01:55:10,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:10,129 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:10,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:10,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:10,353 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:10,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:10,353 INFO L85 PathProgramCache]: Analyzing trace with hash 690064665, now seen corresponding path program 1 times [2022-11-03 01:55:10,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:10,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522714890] [2022-11-03 01:55:10,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:10,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:10,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:10,364 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:10,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 01:55:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:12,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:55:12,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:12,249 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-11-03 01:55:12,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:12,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:12,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522714890] [2022-11-03 01:55:12,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522714890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:12,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:12,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:55:12,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305063308] [2022-11-03 01:55:12,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:12,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:55:12,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:12,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:55:12,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:55:12,251 INFO L87 Difference]: Start difference. First operand 27284 states and 39783 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 01:55:14,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:14,901 INFO L93 Difference]: Finished difference Result 41333 states and 60301 transitions. [2022-11-03 01:55:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:55:14,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 155 [2022-11-03 01:55:14,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:14,970 INFO L225 Difference]: With dead ends: 41333 [2022-11-03 01:55:14,970 INFO L226 Difference]: Without dead ends: 14069 [2022-11-03 01:55:15,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 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 01:55:15,045 INFO L413 NwaCegarLoop]: 2987 mSDtfsCounter, 3735 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3735 SdHoareTripleChecker+Valid, 5457 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:15,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3735 Valid, 5457 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 01:55:15,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14069 states. [2022-11-03 01:55:16,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14069 to 13714. [2022-11-03 01:55:16,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13714 states, 9700 states have (on average 1.357319587628866) internal successors, (13166), 10074 states have internal predecessors, (13166), 3152 states have call successors, (3152), 862 states have call predecessors, (3152), 861 states have return successors, (3652), 3046 states have call predecessors, (3652), 3151 states have call successors, (3652) [2022-11-03 01:55:16,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13714 states to 13714 states and 19970 transitions. [2022-11-03 01:55:16,197 INFO L78 Accepts]: Start accepts. Automaton has 13714 states and 19970 transitions. Word has length 155 [2022-11-03 01:55:16,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:16,198 INFO L495 AbstractCegarLoop]: Abstraction has 13714 states and 19970 transitions. [2022-11-03 01:55:16,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 01:55:16,199 INFO L276 IsEmpty]: Start isEmpty. Operand 13714 states and 19970 transitions. [2022-11-03 01:55:16,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-03 01:55:16,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:16,206 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:16,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:16,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:16,421 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:16,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:16,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1585971886, now seen corresponding path program 1 times [2022-11-03 01:55:16,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:16,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176938459] [2022-11-03 01:55:16,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:16,425 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:16,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:16,426 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:16,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 01:55:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:18,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:55:18,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:18,515 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 01:55:18,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:18,515 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:18,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176938459] [2022-11-03 01:55:18,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176938459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:18,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:18,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:18,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040418449] [2022-11-03 01:55:18,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:18,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:18,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:18,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:18,518 INFO L87 Difference]: Start difference. First operand 13714 states and 19970 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 01:55:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:19,961 INFO L93 Difference]: Finished difference Result 33277 states and 48368 transitions. [2022-11-03 01:55:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:19,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 162 [2022-11-03 01:55:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:20,059 INFO L225 Difference]: With dead ends: 33277 [2022-11-03 01:55:20,060 INFO L226 Difference]: Without dead ends: 19583 [2022-11-03 01:55:20,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 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 01:55:20,234 INFO L413 NwaCegarLoop]: 4735 mSDtfsCounter, 2171 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 7746 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:20,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 7746 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:55:20,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19583 states. [2022-11-03 01:55:21,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19583 to 19546. [2022-11-03 01:55:21,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19546 states, 13840 states have (on average 1.3546242774566475) internal successors, (18748), 14390 states have internal predecessors, (18748), 4430 states have call successors, (4430), 1276 states have call predecessors, (4430), 1275 states have return successors, (5166), 4274 states have call predecessors, (5166), 4429 states have call successors, (5166) [2022-11-03 01:55:21,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19546 states to 19546 states and 28344 transitions. [2022-11-03 01:55:21,444 INFO L78 Accepts]: Start accepts. Automaton has 19546 states and 28344 transitions. Word has length 162 [2022-11-03 01:55:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:21,444 INFO L495 AbstractCegarLoop]: Abstraction has 19546 states and 28344 transitions. [2022-11-03 01:55:21,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 01:55:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 19546 states and 28344 transitions. [2022-11-03 01:55:21,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-03 01:55:21,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:21,450 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:21,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:21,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:21,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:21,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:21,677 INFO L85 PathProgramCache]: Analyzing trace with hash -839288048, now seen corresponding path program 1 times [2022-11-03 01:55:21,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:21,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661227538] [2022-11-03 01:55:21,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:21,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:21,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:21,682 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:21,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 01:55:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:23,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 01:55:23,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-03 01:55:24,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:24,071 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:24,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661227538] [2022-11-03 01:55:24,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661227538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:24,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:24,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:55:24,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629289133] [2022-11-03 01:55:24,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:24,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:55:24,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:24,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:55:24,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:55:24,074 INFO L87 Difference]: Start difference. First operand 19546 states and 28344 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-03 01:55:25,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:25,144 INFO L93 Difference]: Finished difference Result 39144 states and 57842 transitions. [2022-11-03 01:55:25,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:55:25,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) Word has length 162 [2022-11-03 01:55:25,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:25,276 INFO L225 Difference]: With dead ends: 39144 [2022-11-03 01:55:25,277 INFO L226 Difference]: Without dead ends: 19618 [2022-11-03 01:55:25,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:55:25,368 INFO L413 NwaCegarLoop]: 3074 mSDtfsCounter, 2 mSDsluCounter, 9204 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12278 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:25,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12278 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:55:25,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19618 states. [2022-11-03 01:55:26,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19618 to 19606. [2022-11-03 01:55:26,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19606 states, 13882 states have (on average 1.3535513614752916) internal successors, (18790), 14438 states have internal predecessors, (18790), 4430 states have call successors, (4430), 1276 states have call predecessors, (4430), 1293 states have return successors, (5242), 4286 states have call predecessors, (5242), 4429 states have call successors, (5242) [2022-11-03 01:55:26,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19606 states to 19606 states and 28462 transitions. [2022-11-03 01:55:26,585 INFO L78 Accepts]: Start accepts. Automaton has 19606 states and 28462 transitions. Word has length 162 [2022-11-03 01:55:26,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:26,586 INFO L495 AbstractCegarLoop]: Abstraction has 19606 states and 28462 transitions. [2022-11-03 01:55:26,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-03 01:55:26,586 INFO L276 IsEmpty]: Start isEmpty. Operand 19606 states and 28462 transitions. [2022-11-03 01:55:26,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-03 01:55:26,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:26,592 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:26,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:26,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:26,805 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:26,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:26,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1507892537, now seen corresponding path program 1 times [2022-11-03 01:55:26,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:26,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380090313] [2022-11-03 01:55:26,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:26,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:26,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:26,809 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:26,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 01:55:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:28,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 01:55:28,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-11-03 01:55:29,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:29,039 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:29,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380090313] [2022-11-03 01:55:29,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380090313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:29,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:29,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 01:55:29,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455833614] [2022-11-03 01:55:29,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:29,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 01:55:29,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:29,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 01:55:29,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:55:29,042 INFO L87 Difference]: Start difference. First operand 19606 states and 28462 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 8 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 01:55:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:30,914 INFO L93 Difference]: Finished difference Result 39288 states and 58030 transitions. [2022-11-03 01:55:30,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 01:55:30,914 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 8 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) Word has length 183 [2022-11-03 01:55:30,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:31,006 INFO L225 Difference]: With dead ends: 39288 [2022-11-03 01:55:31,006 INFO L226 Difference]: Without dead ends: 19702 [2022-11-03 01:55:31,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-03 01:55:31,075 INFO L413 NwaCegarLoop]: 3097 mSDtfsCounter, 16 mSDsluCounter, 24702 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 27799 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:31,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 27799 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 01:55:31,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19702 states. [2022-11-03 01:55:32,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19702 to 19672. [2022-11-03 01:55:32,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19672 states, 13930 states have (on average 1.3514716439339556) internal successors, (18826), 14486 states have internal predecessors, (18826), 4436 states have call successors, (4436), 1276 states have call predecessors, (4436), 1305 states have return successors, (5308), 4304 states have call predecessors, (5308), 4435 states have call successors, (5308) [2022-11-03 01:55:32,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19672 states to 19672 states and 28570 transitions. [2022-11-03 01:55:32,330 INFO L78 Accepts]: Start accepts. Automaton has 19672 states and 28570 transitions. Word has length 183 [2022-11-03 01:55:32,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:32,331 INFO L495 AbstractCegarLoop]: Abstraction has 19672 states and 28570 transitions. [2022-11-03 01:55:32,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 8 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 01:55:32,331 INFO L276 IsEmpty]: Start isEmpty. Operand 19672 states and 28570 transitions. [2022-11-03 01:55:32,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-03 01:55:32,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:32,338 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:32,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-11-03 01:55:32,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:32,565 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:32,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:32,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1504479933, now seen corresponding path program 1 times [2022-11-03 01:55:32,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:32,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145056838] [2022-11-03 01:55:32,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:32,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:32,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:32,569 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:32,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 01:55:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:34,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1557 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-03 01:55:34,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:37,113 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-03 01:55:37,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:37,114 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:37,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145056838] [2022-11-03 01:55:37,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145056838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:37,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:37,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-03 01:55:37,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915171209] [2022-11-03 01:55:37,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:37,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 01:55:37,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:37,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 01:55:37,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2022-11-03 01:55:37,117 INFO L87 Difference]: Start difference. First operand 19672 states and 28570 transitions. Second operand has 21 states, 18 states have (on average 5.888888888888889) internal successors, (106), 15 states have internal predecessors, (106), 6 states have call successors, (24), 2 states have call predecessors, (24), 8 states have return successors, (23), 10 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-03 01:55:42,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:42,047 INFO L93 Difference]: Finished difference Result 39554 states and 57490 transitions. [2022-11-03 01:55:42,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 01:55:42,048 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 5.888888888888889) internal successors, (106), 15 states have internal predecessors, (106), 6 states have call successors, (24), 2 states have call predecessors, (24), 8 states have return successors, (23), 10 states have call predecessors, (23), 5 states have call successors, (23) Word has length 189 [2022-11-03 01:55:42,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:42,250 INFO L225 Difference]: With dead ends: 39554 [2022-11-03 01:55:42,250 INFO L226 Difference]: Without dead ends: 19902 [2022-11-03 01:55:42,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2022-11-03 01:55:42,302 INFO L413 NwaCegarLoop]: 3101 mSDtfsCounter, 33 mSDsluCounter, 55591 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 58692 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:42,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 58692 Invalid, 625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 01:55:42,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19902 states. [2022-11-03 01:55:43,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19902 to 19708. [2022-11-03 01:55:43,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19708 states, 13958 states have (on average 1.3507665854706978) internal successors, (18854), 14510 states have internal predecessors, (18854), 4440 states have call successors, (4440), 1276 states have call predecessors, (4440), 1309 states have return successors, (5328), 4316 states have call predecessors, (5328), 4439 states have call successors, (5328) [2022-11-03 01:55:43,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19708 states to 19708 states and 28622 transitions. [2022-11-03 01:55:43,368 INFO L78 Accepts]: Start accepts. Automaton has 19708 states and 28622 transitions. Word has length 189 [2022-11-03 01:55:43,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:43,368 INFO L495 AbstractCegarLoop]: Abstraction has 19708 states and 28622 transitions. [2022-11-03 01:55:43,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 5.888888888888889) internal successors, (106), 15 states have internal predecessors, (106), 6 states have call successors, (24), 2 states have call predecessors, (24), 8 states have return successors, (23), 10 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-03 01:55:43,369 INFO L276 IsEmpty]: Start isEmpty. Operand 19708 states and 28622 transitions. [2022-11-03 01:55:43,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-03 01:55:43,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:43,377 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:55:43,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:43,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:43,601 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:43,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:43,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1381975453, now seen corresponding path program 1 times [2022-11-03 01:55:43,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:43,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616120538] [2022-11-03 01:55:43,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:43,603 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:43,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:43,604 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:43,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 01:55:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:45,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 1633 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 01:55:45,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:45,738 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-03 01:55:45,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:45,739 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:45,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616120538] [2022-11-03 01:55:45,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616120538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:45,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:45,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 01:55:45,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855811497] [2022-11-03 01:55:45,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:45,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:55:45,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:45,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:55:45,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:55:45,741 INFO L87 Difference]: Start difference. First operand 19708 states and 28622 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 4 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 01:55:46,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:46,782 INFO L93 Difference]: Finished difference Result 39406 states and 58048 transitions. [2022-11-03 01:55:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:55:46,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 4 states have call predecessors, (26), 2 states have call successors, (26) Word has length 204 [2022-11-03 01:55:46,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:47,022 INFO L225 Difference]: With dead ends: 39406 [2022-11-03 01:55:47,022 INFO L226 Difference]: Without dead ends: 19718 [2022-11-03 01:55:47,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:55:47,087 INFO L413 NwaCegarLoop]: 3073 mSDtfsCounter, 5 mSDsluCounter, 18415 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 21488 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:47,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 21488 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:55:47,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19718 states. [2022-11-03 01:55:48,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19718 to 19706. [2022-11-03 01:55:48,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19706 states, 13960 states have (on average 1.3492836676217765) internal successors, (18836), 14518 states have internal predecessors, (18836), 4430 states have call successors, (4430), 1276 states have call predecessors, (4430), 1315 states have return successors, (5324), 4306 states have call predecessors, (5324), 4429 states have call successors, (5324) [2022-11-03 01:55:48,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19706 states to 19706 states and 28590 transitions. [2022-11-03 01:55:48,126 INFO L78 Accepts]: Start accepts. Automaton has 19706 states and 28590 transitions. Word has length 204 [2022-11-03 01:55:48,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:48,127 INFO L495 AbstractCegarLoop]: Abstraction has 19706 states and 28590 transitions. [2022-11-03 01:55:48,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 4 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 01:55:48,128 INFO L276 IsEmpty]: Start isEmpty. Operand 19706 states and 28590 transitions. [2022-11-03 01:55:48,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-03 01:55:48,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:48,137 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:48,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:48,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:48,349 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:48,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:48,350 INFO L85 PathProgramCache]: Analyzing trace with hash 800681902, now seen corresponding path program 1 times [2022-11-03 01:55:48,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:48,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745576398] [2022-11-03 01:55:48,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:48,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:48,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:48,353 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:48,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 01:55:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:50,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 1660 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:55:50,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:50,220 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-11-03 01:55:50,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:50,221 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:50,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745576398] [2022-11-03 01:55:50,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745576398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:50,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:50,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:50,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452401019] [2022-11-03 01:55:50,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:50,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:50,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:50,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:50,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:50,224 INFO L87 Difference]: Start difference. First operand 19706 states and 28590 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:55:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:51,018 INFO L93 Difference]: Finished difference Result 39428 states and 58022 transitions. [2022-11-03 01:55:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:51,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 221 [2022-11-03 01:55:51,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:51,097 INFO L225 Difference]: With dead ends: 39428 [2022-11-03 01:55:51,097 INFO L226 Difference]: Without dead ends: 19742 [2022-11-03 01:55:51,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 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 01:55:51,172 INFO L413 NwaCegarLoop]: 3073 mSDtfsCounter, 2 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6142 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:51,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6142 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:55:51,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19742 states. [2022-11-03 01:55:52,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19742 to 19718. [2022-11-03 01:55:52,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19718 states, 13972 states have (on average 1.3489836816490124) internal successors, (18848), 14530 states have internal predecessors, (18848), 4430 states have call successors, (4430), 1276 states have call predecessors, (4430), 1315 states have return successors, (5324), 4306 states have call predecessors, (5324), 4429 states have call successors, (5324) [2022-11-03 01:55:52,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19718 states to 19718 states and 28602 transitions. [2022-11-03 01:55:52,568 INFO L78 Accepts]: Start accepts. Automaton has 19718 states and 28602 transitions. Word has length 221 [2022-11-03 01:55:52,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:52,569 INFO L495 AbstractCegarLoop]: Abstraction has 19718 states and 28602 transitions. [2022-11-03 01:55:52,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:55:52,569 INFO L276 IsEmpty]: Start isEmpty. Operand 19718 states and 28602 transitions. [2022-11-03 01:55:52,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-03 01:55:52,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:52,579 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:52,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:52,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:52,801 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:52,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:52,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1316202351, now seen corresponding path program 1 times [2022-11-03 01:55:52,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:52,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332347027] [2022-11-03 01:55:52,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:52,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:52,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:52,804 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:52,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 01:55:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:54,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1660 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:55:54,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-03 01:55:54,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:54,797 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:54,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332347027] [2022-11-03 01:55:54,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332347027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:54,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:54,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:54,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322165788] [2022-11-03 01:55:54,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:54,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:54,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:54,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:54,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:54,799 INFO L87 Difference]: Start difference. First operand 19718 states and 28602 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:55:55,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:55,737 INFO L93 Difference]: Finished difference Result 39420 states and 57216 transitions. [2022-11-03 01:55:55,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:55,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 221 [2022-11-03 01:55:55,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:55,811 INFO L225 Difference]: With dead ends: 39420 [2022-11-03 01:55:55,811 INFO L226 Difference]: Without dead ends: 19722 [2022-11-03 01:55:55,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 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 01:55:55,871 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 0 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6131 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:55,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6131 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:55:55,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19722 states. [2022-11-03 01:55:56,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19722 to 19718. [2022-11-03 01:55:56,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19718 states, 13972 states have (on average 1.3481248210707129) internal successors, (18836), 14530 states have internal predecessors, (18836), 4430 states have call successors, (4430), 1276 states have call predecessors, (4430), 1315 states have return successors, (5324), 4306 states have call predecessors, (5324), 4429 states have call successors, (5324) [2022-11-03 01:55:56,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19718 states to 19718 states and 28590 transitions. [2022-11-03 01:55:56,871 INFO L78 Accepts]: Start accepts. Automaton has 19718 states and 28590 transitions. Word has length 221 [2022-11-03 01:55:56,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:56,872 INFO L495 AbstractCegarLoop]: Abstraction has 19718 states and 28590 transitions. [2022-11-03 01:55:56,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:55:56,872 INFO L276 IsEmpty]: Start isEmpty. Operand 19718 states and 28590 transitions. [2022-11-03 01:55:56,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-03 01:55:56,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:56,880 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:56,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:57,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:57,105 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:57,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:57,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1149592239, now seen corresponding path program 1 times [2022-11-03 01:55:57,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:57,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326591465] [2022-11-03 01:55:57,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:57,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:57,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:57,109 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:57,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 01:55:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:59,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1666 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:55:59,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-03 01:55:59,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:59,080 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:59,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326591465] [2022-11-03 01:55:59,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326591465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:59,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:59,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:59,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301457756] [2022-11-03 01:55:59,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:59,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:59,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:59,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:59,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:59,083 INFO L87 Difference]: Start difference. First operand 19718 states and 28590 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:56:00,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:00,128 INFO L93 Difference]: Finished difference Result 42209 states and 61691 transitions. [2022-11-03 01:56:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:56:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 224 [2022-11-03 01:56:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:00,218 INFO L225 Difference]: With dead ends: 42209 [2022-11-03 01:56:00,218 INFO L226 Difference]: Without dead ends: 22511 [2022-11-03 01:56:00,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 222 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 01:56:00,436 INFO L413 NwaCegarLoop]: 3799 mSDtfsCounter, 652 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 6916 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:00,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 6916 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:56:00,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22511 states. [2022-11-03 01:56:01,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22511 to 19710. [2022-11-03 01:56:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19710 states, 13964 states have (on average 1.34775136064165) internal successors, (18820), 14522 states have internal predecessors, (18820), 4430 states have call successors, (4430), 1276 states have call predecessors, (4430), 1315 states have return successors, (5324), 4306 states have call predecessors, (5324), 4429 states have call successors, (5324) [2022-11-03 01:56:01,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19710 states to 19710 states and 28574 transitions. [2022-11-03 01:56:01,405 INFO L78 Accepts]: Start accepts. Automaton has 19710 states and 28574 transitions. Word has length 224 [2022-11-03 01:56:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:01,405 INFO L495 AbstractCegarLoop]: Abstraction has 19710 states and 28574 transitions. [2022-11-03 01:56:01,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:56:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 19710 states and 28574 transitions. [2022-11-03 01:56:01,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-03 01:56:01,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:01,414 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:56:01,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:01,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:01,625 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:01,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:01,625 INFO L85 PathProgramCache]: Analyzing trace with hash 619015760, now seen corresponding path program 1 times [2022-11-03 01:56:01,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:01,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830097633] [2022-11-03 01:56:01,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:01,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:01,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:01,629 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:01,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 01:56:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:03,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:56:03,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:03,555 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-03 01:56:03,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:03,556 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:03,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830097633] [2022-11-03 01:56:03,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830097633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:03,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:56:03,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:56:03,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280538341] [2022-11-03 01:56:03,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:03,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:56:03,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:03,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:56:03,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:56:03,558 INFO L87 Difference]: Start difference. First operand 19710 states and 28574 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 01:56:04,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:04,532 INFO L93 Difference]: Finished difference Result 39376 states and 57076 transitions. [2022-11-03 01:56:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:56:04,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 229 [2022-11-03 01:56:04,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:04,593 INFO L225 Difference]: With dead ends: 39376 [2022-11-03 01:56:04,593 INFO L226 Difference]: Without dead ends: 19686 [2022-11-03 01:56:04,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 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 01:56:04,633 INFO L413 NwaCegarLoop]: 3052 mSDtfsCounter, 0 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6101 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:04,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6101 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:56:04,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19686 states. [2022-11-03 01:56:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19686 to 19686. [2022-11-03 01:56:05,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19686 states, 13952 states have (on average 1.347190366972477) internal successors, (18796), 14510 states have internal predecessors, (18796), 4418 states have call successors, (4418), 1276 states have call predecessors, (4418), 1315 states have return successors, (5312), 4294 states have call predecessors, (5312), 4417 states have call successors, (5312) [2022-11-03 01:56:05,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19686 states to 19686 states and 28526 transitions. [2022-11-03 01:56:05,919 INFO L78 Accepts]: Start accepts. Automaton has 19686 states and 28526 transitions. Word has length 229 [2022-11-03 01:56:05,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:05,920 INFO L495 AbstractCegarLoop]: Abstraction has 19686 states and 28526 transitions. [2022-11-03 01:56:05,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 01:56:05,920 INFO L276 IsEmpty]: Start isEmpty. Operand 19686 states and 28526 transitions. [2022-11-03 01:56:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-03 01:56:05,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:05,930 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:56:05,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:06,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:06,146 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:06,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:06,146 INFO L85 PathProgramCache]: Analyzing trace with hash 817459335, now seen corresponding path program 1 times [2022-11-03 01:56:06,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:06,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127895610] [2022-11-03 01:56:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:06,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:06,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:06,149 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:06,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 01:56:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:08,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1705 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:56:08,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:08,812 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-11-03 01:56:08,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:08,812 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:08,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127895610] [2022-11-03 01:56:08,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127895610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:08,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:56:08,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:56:08,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093249365] [2022-11-03 01:56:08,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:08,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:56:08,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:08,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:56:08,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:56:08,815 INFO L87 Difference]: Start difference. First operand 19686 states and 28526 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 01:56:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:10,013 INFO L93 Difference]: Finished difference Result 39429 states and 57116 transitions. [2022-11-03 01:56:10,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:56:10,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 229 [2022-11-03 01:56:10,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:10,090 INFO L225 Difference]: With dead ends: 39429 [2022-11-03 01:56:10,090 INFO L226 Difference]: Without dead ends: 19701 [2022-11-03 01:56:10,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 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 01:56:10,138 INFO L413 NwaCegarLoop]: 3303 mSDtfsCounter, 2871 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2871 SdHoareTripleChecker+Valid, 3618 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:10,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2871 Valid, 3618 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:56:10,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19701 states. [2022-11-03 01:56:11,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19701 to 19682. [2022-11-03 01:56:11,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19682 states, 13949 states have (on average 1.3477668650082444) internal successors, (18800), 14509 states have internal predecessors, (18800), 4410 states have call successors, (4410), 1283 states have call predecessors, (4410), 1322 states have return successors, (5281), 4286 states have call predecessors, (5281), 4409 states have call successors, (5281) [2022-11-03 01:56:11,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19682 states to 19682 states and 28491 transitions. [2022-11-03 01:56:11,305 INFO L78 Accepts]: Start accepts. Automaton has 19682 states and 28491 transitions. Word has length 229 [2022-11-03 01:56:11,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:11,306 INFO L495 AbstractCegarLoop]: Abstraction has 19682 states and 28491 transitions. [2022-11-03 01:56:11,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 01:56:11,306 INFO L276 IsEmpty]: Start isEmpty. Operand 19682 states and 28491 transitions. [2022-11-03 01:56:11,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-03 01:56:11,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:11,316 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:56:11,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:11,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:11,537 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:11,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:11,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1285672724, now seen corresponding path program 1 times [2022-11-03 01:56:11,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:11,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423872618] [2022-11-03 01:56:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:11,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:11,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:11,540 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:11,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 01:56:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:22,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 1743 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-03 01:56:22,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:22,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:22,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:22,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:22,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:22,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:22,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:22,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:22,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:22,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:22,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:22,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:22,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:23,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:23,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:23,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:23,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:23,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:24,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:24,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:24,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:24,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:24,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:24,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:24,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:24,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:25,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:25,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:25,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:25,138 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:26,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:26,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:26,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:26,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:27,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:27,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:27,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:27,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-03 01:56:27,739 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 01:56:34,021 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 01:56:38,407 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 01:56:46,250 INFO L356 Elim1Store]: treesize reduction 11, result has 47.6 percent of original size [2022-11-03 01:56:46,250 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 1 case distinctions, treesize of input 10 treesize of output 16 [2022-11-03 01:58:19,432 INFO L356 Elim1Store]: treesize reduction 81, result has 19.0 percent of original size [2022-11-03 01:58:19,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 134 [2022-11-03 01:58:20,058 INFO L244 Elim1Store]: Index analysis took 498 ms [2022-11-03 01:58:20,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-03 01:58:20,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:58:20,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 34 [2022-11-03 01:58:20,696 WARN L855 $PredicateComparison]: unable to prove that (and (= (_ bv0 64) |c_~#ppp_unit_count~0.offset|) (let ((.cse0 (select |c_#memory_int| |c_~#set_impl~0.base|))) (or (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (= .cse0 (store (store (store (store (store (store (store (store (store (store .cse0 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550))) (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 8))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 8))) (|ppp_write_~skb~2#1.base| (_ BitVec 64)) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (let ((.cse1 (select (store (store (store (store (store |c_#memory_int| |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) |c_~#set_impl~0.base| v_DerPreprocessor_2) |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) |c_~#set_impl~0.base| v_DerPreprocessor_2) |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) |c_~#set_impl~0.base|))) (and (= (select |c_#memory_int| |ppp_write_~skb~2#1.base|) (store (store (store (store (store (store (store (store (store (store ((as const (Array (_ BitVec 64) (_ BitVec 8))) (_ bv0 8)) (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)) (= v_DerPreprocessor_1 (store (store (store (store (store (store (store (store (store (store .cse1 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)) (not (= |ppp_write_~skb~2#1.base| |c_~#set_impl~0.base|)) (= .cse0 .cse1)))))) (= (_ bv92 64) |c_~#set_impl~0.base|) (= (_ bv70 64) |c_~#ppp_unit_count~0.base|)) is different from true [2022-11-03 01:58:22,636 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse1 ((as const (Array (_ BitVec 64) (_ BitVec 8))) (_ bv0 8)))) (and (= (_ bv0 64) |c_~#ppp_unit_count~0.offset|) (let ((.cse0 (select |c_#memory_int| |c_~#set_impl~0.base|))) (or (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (= .cse0 (store (store (store (store (store (store (store (store (store (store .cse0 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550))) (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 8))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 8))) (|ppp_write_~skb~2#1.base| (_ BitVec 64)) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (let ((.cse2 (select (store (store (store (store (store |c_#memory_int| |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) |c_~#set_impl~0.base| v_DerPreprocessor_2) |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) |c_~#set_impl~0.base| v_DerPreprocessor_2) |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) |c_~#set_impl~0.base|))) (and (= (select |c_#memory_int| |ppp_write_~skb~2#1.base|) (store (store (store (store (store (store (store (store (store (store .cse1 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)) (= v_DerPreprocessor_1 (store (store (store (store (store (store (store (store (store (store .cse2 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)) (not (= |ppp_write_~skb~2#1.base| |c_~#set_impl~0.base|)) (= .cse0 .cse2)))))) (= (_ bv92 64) |c_~#set_impl~0.base|) (= (_ bv70 64) |c_~#ppp_unit_count~0.base|) (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_ArrVal_535 (Array (_ BitVec 64) (_ BitVec 8))) (|ppp_write_~skb~2#1.base| (_ BitVec 64)) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (= |c_#memory_int| (let ((.cse3 (store (store |c_old(#memory_int)| |ppp_write_~skb~2#1.base| .cse1) |c_~#set_impl~0.base| v_ArrVal_535))) (store .cse3 |ppp_write_~skb~2#1.base| (store (store (store (store (store (store (store (store (store (store (select .cse3 |ppp_write_~skb~2#1.base|) (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550))))))) is different from true [2022-11-03 01:58:23,242 INFO L356 Elim1Store]: treesize reduction 81, result has 19.0 percent of original size [2022-11-03 01:58:23,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 134 [2022-11-03 01:58:23,805 INFO L244 Elim1Store]: Index analysis took 451 ms [2022-11-03 01:58:24,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-03 01:58:24,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:58:24,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 34 [2022-11-03 01:58:24,419 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_~#set_impl~0.base|))) (let ((.cse0 (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (= .cse3 (store (store (store (store (store (store (store (store (store (store .cse3 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)))) (.cse1 ((as const (Array (_ BitVec 64) (_ BitVec 8))) (_ bv0 8)))) (and (= (_ bv0 64) |c_~#ppp_unit_count~0.offset|) (or .cse0 (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 8))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 8))) (|ppp_write_~skb~2#1.base| (_ BitVec 64)) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (let ((.cse2 (select (store (store (store (store (store |c_#memory_int| |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) |c_~#set_impl~0.base| v_DerPreprocessor_2) |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) |c_~#set_impl~0.base| v_DerPreprocessor_2) |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) |c_~#set_impl~0.base|))) (and (= (select |c_#memory_int| |ppp_write_~skb~2#1.base|) (store (store (store (store (store (store (store (store (store (store .cse1 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)) (= v_DerPreprocessor_1 (store (store (store (store (store (store (store (store (store (store .cse2 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)) (not (= |ppp_write_~skb~2#1.base| |c_~#set_impl~0.base|)) (= .cse3 .cse2))))) (= (_ bv92 64) |c_~#set_impl~0.base|) (= (_ bv70 64) |c_~#ppp_unit_count~0.base|) (or .cse0 (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_DerPreprocessor_3 (Array (_ BitVec 64) (_ BitVec 8))) (|ppp_write_~skb~2#1.base| (_ BitVec 64)) (v_DerPreprocessor_4 (Array (_ BitVec 64) (_ BitVec 8))) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (let ((.cse4 (select (store (store (store (store (store |c_#memory_int| |ppp_write_~skb~2#1.base| v_DerPreprocessor_3) |c_~#set_impl~0.base| v_DerPreprocessor_4) |ppp_write_~skb~2#1.base| v_DerPreprocessor_3) |c_~#set_impl~0.base| v_DerPreprocessor_4) |ppp_write_~skb~2#1.base| v_DerPreprocessor_3) |c_~#set_impl~0.base|))) (and (= (select |c_#memory_int| |ppp_write_~skb~2#1.base|) (store (store (store (store (store (store (store (store (store (store .cse1 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)) (= (store (store (store (store (store (store (store (store (store (store .cse4 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550) v_DerPreprocessor_3) (= .cse3 .cse4) (= .cse4 v_DerPreprocessor_4)))))))) is different from true [2022-11-03 01:58:38,745 WARN L234 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:40,587 INFO L356 Elim1Store]: treesize reduction 171, result has 14.1 percent of original size [2022-11-03 01:58:40,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 136 treesize of output 173 [2022-11-03 01:58:40,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:58:40,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:58:40,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:58:40,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2022-11-03 01:58:41,048 INFO L244 Elim1Store]: Index analysis took 307 ms [2022-11-03 01:58:41,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-03 01:58:41,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:58:41,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 140 [2022-11-03 01:58:42,212 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| (_ bv92 64)))) (let ((.cse3 ((as const (Array (_ BitVec 64) (_ BitVec 8))) (_ bv0 8))) (.cse5 (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (= (store (store (store (store (store (store (store (store (store (store .cse2 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550) .cse2)))) (and (= (_ bv0 64) |c_~#ppp_unit_count~0.offset|) (let ((.cse0 (select |c_#memory_int| |c_~#ppp_unit_count~0.base|))) (or (and (= (select .cse0 |c_~#ppp_unit_count~0.offset|) ((_ extract 7 0) (_ bv0 32))) (= ((_ extract 23 16) (_ bv0 32)) (select .cse0 (bvadd |c_~#ppp_unit_count~0.offset| (_ bv2 64)))) (= (select .cse0 (bvadd |c_~#ppp_unit_count~0.offset| (_ bv1 64))) ((_ extract 15 8) (_ bv0 32))) (= (select .cse0 (bvadd (_ bv3 64) |c_~#ppp_unit_count~0.offset|)) ((_ extract 31 24) (_ bv0 32)))) (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_DerPreprocessor_6 (Array (_ BitVec 64) (_ BitVec 8))) (v_DerPreprocessor_5 (Array (_ BitVec 64) (_ BitVec 8))) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (let ((.cse1 (select (store (store (store (store (store |c_#memory_int| |c_~#ppp_unit_count~0.base| v_DerPreprocessor_5) (_ bv92 64) v_DerPreprocessor_6) |c_~#ppp_unit_count~0.base| v_DerPreprocessor_5) (_ bv92 64) v_DerPreprocessor_6) |c_~#ppp_unit_count~0.base| v_DerPreprocessor_5) (_ bv92 64)))) (and (= v_DerPreprocessor_5 (store (store (store (store (store (store (store (store (store (store .cse1 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)) (= .cse1 .cse2) (= (store (store (store (store (store (store (store (store (store (store .cse3 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550) .cse0)))))) (or (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 8))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 8))) (|ppp_write_~skb~2#1.base| (_ BitVec 64)) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (let ((.cse4 (select (store (store (store (store (store |c_#memory_int| |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) (_ bv92 64) v_DerPreprocessor_2) |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) (_ bv92 64) v_DerPreprocessor_2) |ppp_write_~skb~2#1.base| v_DerPreprocessor_1) (_ bv92 64)))) (and (= (select |c_#memory_int| |ppp_write_~skb~2#1.base|) (store (store (store (store (store (store (store (store (store (store .cse3 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)) (not (= |ppp_write_~skb~2#1.base| (_ bv92 64))) (= .cse2 .cse4) (= (store (store (store (store (store (store (store (store (store (store .cse4 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550) v_DerPreprocessor_1)))) .cse5) (or (exists ((v_ArrVal_548 (_ BitVec 8)) (v_ArrVal_547 (_ BitVec 8)) (v_ArrVal_545 (_ BitVec 8)) (v_ArrVal_538 (_ BitVec 8)) (v_ArrVal_549 (_ BitVec 8)) (v_DerPreprocessor_3 (Array (_ BitVec 64) (_ BitVec 8))) (|ppp_write_~skb~2#1.base| (_ BitVec 64)) (v_DerPreprocessor_4 (Array (_ BitVec 64) (_ BitVec 8))) (v_ArrVal_540 (_ BitVec 8)) (v_ArrVal_550 (_ BitVec 8)) (v_ArrVal_543 (_ BitVec 8)) (v_ArrVal_542 (_ BitVec 8)) (v_ArrVal_541 (_ BitVec 8))) (let ((.cse6 (select (store (store (store (store (store |c_#memory_int| |ppp_write_~skb~2#1.base| v_DerPreprocessor_3) (_ bv92 64) v_DerPreprocessor_4) |ppp_write_~skb~2#1.base| v_DerPreprocessor_3) (_ bv92 64) v_DerPreprocessor_4) |ppp_write_~skb~2#1.base| v_DerPreprocessor_3) (_ bv92 64)))) (and (= (select |c_#memory_int| |ppp_write_~skb~2#1.base|) (store (store (store (store (store (store (store (store (store (store .cse3 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550)) (= .cse6 v_DerPreprocessor_4) (= .cse6 .cse2) (= (store (store (store (store (store (store (store (store (store (store .cse6 (_ bv224 64) v_ArrVal_538) (_ bv232 64) v_ArrVal_543) (_ bv216 64) v_ArrVal_545) (_ bv217 64) v_ArrVal_542) (_ bv218 64) v_ArrVal_541) (_ bv219 64) v_ArrVal_540) (_ bv216 64) v_ArrVal_549) (_ bv217 64) v_ArrVal_548) (_ bv218 64) v_ArrVal_547) (_ bv219 64) v_ArrVal_550) v_DerPreprocessor_3)))) .cse5) (= (_ bv70 64) |c_~#ppp_unit_count~0.base|)))) is different from true [2022-11-03 01:58:49,575 WARN L234 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:59,266 WARN L234 SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 137 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:00,278 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:59:00,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 416 treesize of output 420 [2022-11-03 01:59:01,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2022-11-03 01:59:01,847 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-11-03 01:59:01,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:59:07,526 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_625 (_ BitVec 8)) (v_ArrVal_623 (_ BitVec 8)) (v_ArrVal_622 (_ BitVec 8)) (v_ArrVal_629 (_ BitVec 8)) (v_ArrVal_628 (_ BitVec 8)) (v_ArrVal_627 (_ BitVec 8)) (v_ArrVal_626 (_ BitVec 8)) (v_ArrVal_632 (Array (_ BitVec 64) (_ BitVec 8))) (|v_ppp_write_~skb~2#1.base_19| (_ BitVec 64)) (v_ArrVal_621 (_ BitVec 8)) (v_ArrVal_631 (_ BitVec 8)) (v_ArrVal_630 (_ BitVec 8))) (= (let ((.cse0 (select (let ((.cse1 (store (store |c_#memory_int| |v_ppp_write_~skb~2#1.base_19| ((as const (Array (_ BitVec 64) (_ BitVec 8))) (_ bv0 8))) |c_~#set_impl~0.base| v_ArrVal_632))) (store .cse1 |v_ppp_write_~skb~2#1.base_19| (store (store (store (store (store (store (store (store (store (store (select .cse1 |v_ppp_write_~skb~2#1.base_19|) (_ bv224 64) v_ArrVal_628) (_ bv232 64) v_ArrVal_626) (_ bv216 64) v_ArrVal_629) (_ bv217 64) v_ArrVal_622) (_ bv218 64) v_ArrVal_623) (_ bv219 64) v_ArrVal_621) (_ bv216 64) v_ArrVal_630) (_ bv217 64) v_ArrVal_627) (_ bv218 64) v_ArrVal_625) (_ bv219 64) v_ArrVal_631))) |c_~#ppp_unit_count~0.base|))) (concat (concat (concat (select .cse0 (bvadd (_ bv3 64) |c_~#ppp_unit_count~0.offset|)) (select .cse0 (bvadd |c_~#ppp_unit_count~0.offset| (_ bv2 64)))) (select .cse0 (bvadd |c_~#ppp_unit_count~0.offset| (_ bv1 64)))) (select .cse0 |c_~#ppp_unit_count~0.offset|))) (concat (concat (concat (_ bv0 8) (_ bv0 8)) (_ bv0 8)) (_ bv0 8)))) is different from false [2022-11-03 01:59:07,536 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:59:07,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423872618] [2022-11-03 01:59:07,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423872618] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:59:07,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [272485990] [2022-11-03 01:59:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:07,536 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:59:07,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:59:07,537 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:59:07,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802ac03a-b731-41b5-9afb-882280622b67/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process