./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/sll2n_insert_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2n_insert_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba --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 32bit --witnessprinter.graph.data.programhash 43bf83586090da08f52ccb7b612d2451c8f1efe9c820d873134ac51350c022e3 --- 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-b5237d8 [2022-11-22 01:27:23,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:27:23,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:27:23,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:27:23,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:27:23,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:27:23,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:27:23,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:27:23,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:27:23,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:27:23,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:27:23,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:27:23,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:27:23,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:27:23,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:27:23,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:27:23,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:27:23,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:27:23,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:27:24,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:27:24,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:27:24,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:27:24,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:27:24,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:27:24,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:27:24,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:27:24,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:27:24,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:27:24,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:27:24,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:27:24,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:27:24,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:27:24,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:27:24,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:27:24,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:27:24,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:27:24,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:27:24,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:27:24,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:27:24,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:27:24,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:27:24,024 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:27:24,045 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:27:24,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:27:24,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:27:24,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:27:24,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:27:24,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:27:24,047 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:27:24,048 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:27:24,048 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:27:24,048 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:27:24,048 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:27:24,049 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:27:24,049 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:27:24,049 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:27:24,050 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:27:24,050 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:27:24,050 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:27:24,051 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:27:24,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:27:24,052 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:27:24,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:27:24,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:27:24,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:27:24,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:27:24,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:27:24,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:27:24,054 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:27:24,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:27:24,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:27:24,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:27:24,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:27:24,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:27:24,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:27:24,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:27:24,056 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:27:24,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:27:24,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:27:24,057 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:27:24,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:27:24,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:27:24,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:27:24,058 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_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43bf83586090da08f52ccb7b612d2451c8f1efe9c820d873134ac51350c022e3 [2022-11-22 01:27:24,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:27:24,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:27:24,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:27:24,374 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:27:24,375 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:27:24,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/list-simple/sll2n_insert_equal.i [2022-11-22 01:27:27,705 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:27:28,016 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:27:28,017 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/sv-benchmarks/c/list-simple/sll2n_insert_equal.i [2022-11-22 01:27:28,030 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/data/d488ba5aa/c5ac3be3fead4f038f711cb1ffe8bee8/FLAG91db18087 [2022-11-22 01:27:28,050 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/data/d488ba5aa/c5ac3be3fead4f038f711cb1ffe8bee8 [2022-11-22 01:27:28,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:27:28,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:27:28,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:27:28,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:27:28,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:27:28,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50374fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28, skipping insertion in model container [2022-11-22 01:27:28,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:27:28,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:27:28,660 WARN L237 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_1e2fd029-866d-459a-b0bf-2282fd310114/sv-benchmarks/c/list-simple/sll2n_insert_equal.i[24301,24314] [2022-11-22 01:27:28,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:27:28,682 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:27:28,748 WARN L237 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_1e2fd029-866d-459a-b0bf-2282fd310114/sv-benchmarks/c/list-simple/sll2n_insert_equal.i[24301,24314] [2022-11-22 01:27:28,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:27:28,782 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:27:28,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28 WrapperNode [2022-11-22 01:27:28,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:27:28,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:27:28,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:27:28,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:27:28,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,862 INFO L138 Inliner]: procedures = 127, calls = 32, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 119 [2022-11-22 01:27:28,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:27:28,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:27:28,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:27:28,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:27:28,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,923 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:27:28,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:27:28,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:27:28,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:27:28,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (1/1) ... [2022-11-22 01:27:28,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:27:28,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:28,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:27:29,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:27:29,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:27:29,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:27:29,035 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-22 01:27:29,035 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-22 01:27:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:27:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:27:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:27:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:27:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:27:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:27:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:27:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:27:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:27:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:27:29,197 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:27:29,199 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:27:29,530 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:27:29,625 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:27:29,625 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 01:27:29,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:27:29 BoogieIcfgContainer [2022-11-22 01:27:29,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:27:29,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:27:29,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:27:29,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:27:29,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:27:28" (1/3) ... [2022-11-22 01:27:29,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35962251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:27:29, skipping insertion in model container [2022-11-22 01:27:29,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:28" (2/3) ... [2022-11-22 01:27:29,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35962251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:27:29, skipping insertion in model container [2022-11-22 01:27:29,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:27:29" (3/3) ... [2022-11-22 01:27:29,644 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2n_insert_equal.i [2022-11-22 01:27:29,664 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:27:29,664 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:27:29,724 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:27:29,734 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;@417cd847, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:27:29,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:27:29,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:27:29,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:27:29,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:29,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:29,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:27:29,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:29,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1657314583, now seen corresponding path program 1 times [2022-11-22 01:27:29,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:29,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374871165] [2022-11-22 01:27:29,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:29,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:27:30,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:30,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374871165] [2022-11-22 01:27:30,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374871165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:30,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:30,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:27:30,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405941502] [2022-11-22 01:27:30,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:30,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:27:30,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:30,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:27:30,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:27:30,254 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:27:30,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:30,367 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2022-11-22 01:27:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:27:30,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-22 01:27:30,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:30,379 INFO L225 Difference]: With dead ends: 37 [2022-11-22 01:27:30,380 INFO L226 Difference]: Without dead ends: 18 [2022-11-22 01:27:30,383 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 [2022-11-22 01:27:30,390 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:30,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 33 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:27:30,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-22 01:27:30,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2022-11-22 01:27:30,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:27:30,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-11-22 01:27:30,441 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 11 [2022-11-22 01:27:30,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:30,442 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-11-22 01:27:30,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:27:30,443 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-22 01:27:30,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:27:30,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:30,446 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:30,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:27:30,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:27:30,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:30,448 INFO L85 PathProgramCache]: Analyzing trace with hash -323849658, now seen corresponding path program 1 times [2022-11-22 01:27:30,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:30,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955638255] [2022-11-22 01:27:30,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:30,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:27:30,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:30,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955638255] [2022-11-22 01:27:30,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955638255] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:27:30,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000207978] [2022-11-22 01:27:30,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:30,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:30,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:30,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:27:30,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:27:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:31,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:27:31,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:27:31,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:27:31,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:27:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:27:31,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000207978] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:27:31,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [127084755] [2022-11-22 01:27:31,273 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 01:27:31,273 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:27:31,278 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:27:31,285 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:27:31,287 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:27:31,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:31,396 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:27:31,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-22 01:27:31,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:31,441 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:27:31,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 01:27:31,524 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:31,532 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:31,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:31,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 01:27:31,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:31,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 01:27:31,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:31,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-22 01:27:31,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:31,641 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 13 [2022-11-22 01:27:31,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:31,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:27:31,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:31,760 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 13 [2022-11-22 01:27:31,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:31,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:27:31,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:31,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 13 [2022-11-22 01:27:31,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:31,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 13 [2022-11-22 01:27:31,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:31,881 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:27:31,977 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:31,991 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:32,026 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-22 01:27:32,047 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:32,059 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:32,140 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:32,156 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:32,169 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:32,182 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:32,202 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-22 01:27:32,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:32,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 222 treesize of output 202 [2022-11-22 01:27:32,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:32,420 INFO L350 Elim1Store]: Elim1 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 216 treesize of output 204 [2022-11-22 01:27:32,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:32,440 INFO L350 Elim1Store]: Elim1 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 220 treesize of output 208 [2022-11-22 01:27:32,580 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-22 01:27:32,591 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:32,609 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:32,620 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:32,630 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:32,726 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:32,738 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:32,754 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:32,765 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:32,776 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-22 01:27:32,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:32,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 222 treesize of output 202 [2022-11-22 01:27:32,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:32,925 INFO L350 Elim1Store]: Elim1 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 216 treesize of output 204 [2022-11-22 01:27:32,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:32,948 INFO L350 Elim1Store]: Elim1 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 220 treesize of output 208 [2022-11-22 01:27:33,259 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:33,282 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:33,438 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:33,463 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:33,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:33,699 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 01:27:33,700 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 236 treesize of output 212 [2022-11-22 01:27:33,715 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 1 [2022-11-22 01:27:33,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:33,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:33,749 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:27:33,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 249 treesize of output 224 [2022-11-22 01:27:33,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:33,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:33,785 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:27:33,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 241 treesize of output 216 [2022-11-22 01:27:34,075 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 11 for LOIs [2022-11-22 01:27:34,084 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:34,092 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:34,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:34,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-22 01:27:34,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:34,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 01:27:34,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:34,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 01:27:34,140 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:27:37,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [127084755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:37,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:27:37,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 13 [2022-11-22 01:27:37,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091573114] [2022-11-22 01:27:37,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:37,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:27:37,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:37,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:27:37,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:27:37,325 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:27:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:37,685 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2022-11-22 01:27:37,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:27:37,686 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-22 01:27:37,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:37,687 INFO L225 Difference]: With dead ends: 22 [2022-11-22 01:27:37,687 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 01:27:37,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:27:37,688 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:37,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 11 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:27:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 01:27:37,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-22 01:27:37,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:27:37,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-22 01:27:37,702 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 17 [2022-11-22 01:27:37,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:37,704 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-22 01:27:37,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:27:37,705 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-22 01:27:37,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 01:27:37,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:37,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:37,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:27:37,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:37,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:27:37,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:37,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1525107315, now seen corresponding path program 1 times [2022-11-22 01:27:37,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:37,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131578148] [2022-11-22 01:27:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:37,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:27:38,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:38,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131578148] [2022-11-22 01:27:38,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131578148] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:27:38,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978680514] [2022-11-22 01:27:38,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:38,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:38,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:38,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:27:38,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:27:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:38,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:27:38,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:27:38,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:27:38,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:27:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:27:38,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978680514] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:27:38,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1430161639] [2022-11-22 01:27:38,284 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 01:27:38,285 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:27:38,285 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:27:38,285 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:27:38,286 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:27:38,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:38,330 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:27:38,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-22 01:27:38,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:38,359 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:27:38,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 01:27:38,396 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:38,402 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:38,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:38,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 01:27:38,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:38,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-22 01:27:38,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:38,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 01:27:38,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:38,474 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 13 [2022-11-22 01:27:38,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:38,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:27:38,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:38,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:27:38,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:38,551 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 13 [2022-11-22 01:27:38,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:38,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 13 [2022-11-22 01:27:38,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:38,601 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:27:38,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:38,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 13 [2022-11-22 01:27:38,670 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-22 01:27:38,679 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:38,688 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:38,699 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:38,709 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:38,763 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:38,772 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 3 [2022-11-22 01:27:38,781 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:38,791 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-22 01:27:38,800 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:38,887 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-22 01:27:38,897 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-22 01:27:38,914 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 1 [2022-11-22 01:27:39,031 INFO L350 Elim1Store]: Elim1 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 76 treesize of output 58 [2022-11-22 01:27:39,041 INFO L350 Elim1Store]: Elim1 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 51 treesize of output 45 [2022-11-22 01:27:39,162 INFO L350 Elim1Store]: Elim1 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 57 treesize of output 51 [2022-11-22 01:27:39,173 INFO L350 Elim1Store]: Elim1 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 70 treesize of output 52 [2022-11-22 01:27:39,229 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 1 [2022-11-22 01:27:39,237 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-22 01:27:39,249 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-22 01:27:39,456 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:39,467 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:39,553 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:39,566 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:39,754 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 100 treesize of output 112 [2022-11-22 01:27:39,770 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 82 treesize of output 94 [2022-11-22 01:27:39,790 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 64 treesize of output 76 [2022-11-22 01:27:40,714 INFO L321 Elim1Store]: treesize reduction 144, result has 36.0 percent of original size [2022-11-22 01:27:40,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 265 treesize of output 473 [2022-11-22 01:27:40,801 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:27:40,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 21 treesize of output 17 [2022-11-22 01:27:40,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-11-22 01:27:41,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-11-22 01:27:41,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-11-22 01:27:41,151 INFO L321 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2022-11-22 01:27:41,152 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 47 [2022-11-22 01:27:41,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-11-22 01:27:41,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:41,441 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 27 [2022-11-22 01:27:41,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:41,479 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 27 [2022-11-22 01:27:41,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:41,520 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-22 01:27:41,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:41,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:41,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:42,375 INFO L321 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2022-11-22 01:27:42,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 1027 treesize of output 1537 [2022-11-22 01:27:44,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:44,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:44,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:44,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:44,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:44,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:44,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 684 treesize of output 3376 [2022-11-22 01:27:45,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:27:45,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 923 treesize of output 5962 [2022-11-22 01:27:45,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:45,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:46,634 INFO L321 Elim1Store]: treesize reduction 129, result has 7.9 percent of original size [2022-11-22 01:27:46,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 2411 treesize of output 4271 [2022-11-22 01:27:47,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:48,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:48,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:49,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:49,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:49,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:49,265 INFO L217 Elim1Store]: Index analysis took 1610 ms [2022-11-22 01:27:49,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 2782 treesize of output 7614 [2022-11-22 01:27:50,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,493 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:27:50,495 INFO L217 Elim1Store]: Index analysis took 180 ms [2022-11-22 01:27:50,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 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 624 treesize of output 4185 [2022-11-22 01:28:13,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:13,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:13,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:13,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:13,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:13,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:13,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:13,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:13,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:13,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:13,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1125 treesize of output 3111 [2022-11-22 01:28:13,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:14,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:14,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:14,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:14,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:14,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:14,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:14,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:14,558 INFO L321 Elim1Store]: treesize reduction 180, result has 5.8 percent of original size [2022-11-22 01:28:14,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 4456 treesize of output 7056 [2022-11-22 01:28:17,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:28:17,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:17,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:17,483 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:17,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:17,549 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:17,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:17,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:17,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:17,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:17,564 INFO L217 Elim1Store]: Index analysis took 465 ms [2022-11-22 01:28:17,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 14 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 9075 treesize of output 39530 [2022-11-22 01:28:18,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:28:18,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:18,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:18,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:18,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:18,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:18,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:18,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:18,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:18,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:18,689 INFO L217 Elim1Store]: Index analysis took 371 ms [2022-11-22 01:28:18,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 14 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 13138 treesize of output 43109 [2022-11-22 01:28:19,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:19,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:19,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:19,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:19,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:19,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:19,549 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:19,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:19,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:19,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:19,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 22450 treesize of output 24955 [2022-11-22 01:28:23,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:23,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:23,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:23,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:23,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:23,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:23,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:23,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:23,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:23,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:23,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 22443 treesize of output 24950 [2022-11-22 01:28:26,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:26,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:26,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:26,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:26,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:26,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:26,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:26,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:26,394 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:26,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:28:26,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 22443 treesize of output 24950 [2022-11-22 01:29:06,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:06,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:06,940 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:29:06,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:06,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:06,958 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:29:06,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:06,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:06,987 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:29:07,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:07,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 930 treesize of output 3395 [2022-11-22 01:29:07,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,348 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:29:07,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,366 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:29:07,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 953 treesize of output 3570 [2022-11-22 01:29:07,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1125 treesize of output 3111 [2022-11-22 01:29:07,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:07,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 953 treesize of output 3570 [2022-11-22 01:29:08,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:08,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:08,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:08,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:08,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:08,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:08,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:08,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:08,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:08,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:08,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1125 treesize of output 3111 [2022-11-22 01:29:08,734 INFO L217 Elim1Store]: Index analysis took 107 ms [2022-11-22 01:29:08,876 INFO L321 Elim1Store]: treesize reduction 117, result has 17.6 percent of original size [2022-11-22 01:29:08,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 15 case distinctions, treesize of input 245 treesize of output 332 [2022-11-22 01:29:09,102 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:09,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:09,392 INFO L321 Elim1Store]: treesize reduction 66, result has 46.3 percent of original size [2022-11-22 01:29:09,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 622 treesize of output 946 [2022-11-22 01:29:09,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:09,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:09,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:09,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:09,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:09,790 INFO L217 Elim1Store]: Index analysis took 208 ms [2022-11-22 01:29:09,817 INFO L321 Elim1Store]: treesize reduction 67, result has 1.5 percent of original size [2022-11-22 01:29:09,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 236 treesize of output 824 [2022-11-22 01:29:12,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:12,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:12,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 611 treesize of output 929 [2022-11-22 01:29:12,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:12,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:12,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:12,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:12,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:12,870 INFO L217 Elim1Store]: Index analysis took 145 ms [2022-11-22 01:29:12,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 626 [2022-11-22 01:29:24,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,620 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:29:24,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:24,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:24,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 524 treesize of output 2159 [2022-11-22 01:29:24,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 106 treesize of output 97 [2022-11-22 01:29:24,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:24,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:24,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:24,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 519 treesize of output 2156 [2022-11-22 01:29:25,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 124 treesize of output 115 [2022-11-22 01:29:25,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:25,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:25,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 507 treesize of output 2146 [2022-11-22 01:29:25,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 88 treesize of output 79 [2022-11-22 01:29:25,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:25,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:25,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 519 treesize of output 2156 [2022-11-22 01:29:25,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 106 treesize of output 97 [2022-11-22 01:29:25,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:25,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:25,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 524 treesize of output 2159 [2022-11-22 01:29:25,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 30 treesize of output 7 [2022-11-22 01:29:25,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:25,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:25,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:25,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:25,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 767 treesize of output 11317 [2022-11-22 01:29:26,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:26,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:26,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:26,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:26,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:26,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 762 treesize of output 11314 [2022-11-22 01:29:27,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:27,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:27,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:27,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:27,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:27,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:27,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 767 treesize of output 11317 [2022-11-22 01:29:28,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:28,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:28,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:28,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:28,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:28,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:28,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 762 treesize of output 11314 [2022-11-22 01:29:28,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:28,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:28,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:28,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:28,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:28,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:28,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 750 treesize of output 11304 [2022-11-22 01:29:29,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:29,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:29,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:29,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:29,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:29,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:29,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 767 treesize of output 11317 [2022-11-22 01:29:30,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:30,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:30,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:30,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:30,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:30,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:30,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 755 treesize of output 11307 [2022-11-22 01:29:31,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:31,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:31,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:31,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:31,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:31,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:31,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 772 treesize of output 11320 [2022-11-22 01:29:31,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:31,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:31,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:31,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:29:31,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:31,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:29:31,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 767 treesize of output 11317 [2022-11-22 01:29:39,166 INFO L217 Elim1Store]: Index analysis took 732 ms [2022-11-22 01:30:05,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:06,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:06,028 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 178921 column 7: push canceled at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) 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$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$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.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) 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.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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 178921 column 7: push canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 68 more [2022-11-22 01:30:06,033 INFO L158 Benchmark]: Toolchain (without parser) took 157977.93ms. Allocated memory was 192.9MB in the beginning and 9.7GB in the end (delta: 9.5GB). Free memory was 158.7MB in the beginning and 7.6GB in the end (delta: -7.5GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2022-11-22 01:30:06,033 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:30:06,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 726.37ms. Allocated memory is still 192.9MB. Free memory was 158.7MB in the beginning and 152.7MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 01:30:06,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.20ms. Allocated memory is still 192.9MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:30:06,034 INFO L158 Benchmark]: Boogie Preprocessor took 61.94ms. Allocated memory is still 192.9MB. Free memory was 150.6MB in the beginning and 149.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:30:06,036 INFO L158 Benchmark]: RCFGBuilder took 703.01ms. Allocated memory is still 192.9MB. Free memory was 149.5MB in the beginning and 128.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 01:30:06,036 INFO L158 Benchmark]: TraceAbstraction took 156398.83ms. Allocated memory was 192.9MB in the beginning and 9.7GB in the end (delta: 9.5GB). Free memory was 128.5MB in the beginning and 7.6GB in the end (delta: -7.5GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2022-11-22 01:30:06,037 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 726.37ms. Allocated memory is still 192.9MB. Free memory was 158.7MB in the beginning and 152.7MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.20ms. Allocated memory is still 192.9MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.94ms. Allocated memory is still 192.9MB. Free memory was 150.6MB in the beginning and 149.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 703.01ms. Allocated memory is still 192.9MB. Free memory was 149.5MB in the beginning and 128.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 156398.83ms. Allocated memory was 192.9MB in the beginning and 9.7GB in the end (delta: 9.5GB). Free memory was 128.5MB in the beginning and 7.6GB in the end (delta: -7.5GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 178921 column 7: push canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 178921 column 7: push canceled: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-22 01:30:06,265 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-22 01:30:06,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 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_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2n_insert_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba --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 32bit --witnessprinter.graph.data.programhash 43bf83586090da08f52ccb7b612d2451c8f1efe9c820d873134ac51350c022e3 --- 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-b5237d8 [2022-11-22 01:30:08,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:30:08,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:30:08,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:30:08,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:30:08,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:30:08,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:30:08,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:30:08,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:30:08,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:30:08,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:30:08,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:30:08,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:30:08,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:30:08,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:30:08,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:30:08,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:30:08,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:30:08,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:30:08,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:30:08,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:30:08,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:30:08,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:30:08,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:30:08,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:30:08,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:30:08,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:30:08,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:30:08,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:30:08,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:30:08,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:30:08,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:30:08,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:30:08,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:30:08,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:30:08,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:30:08,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:30:08,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:30:08,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:30:08,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:30:08,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:30:08,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-22 01:30:08,888 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:30:08,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:30:08,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:30:08,891 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:30:08,892 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:30:08,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:30:08,892 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:30:08,893 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:30:08,893 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:30:08,893 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:30:08,894 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:30:08,895 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:30:08,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:30:08,896 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:30:08,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:30:08,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:30:08,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:30:08,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:30:08,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:30:08,897 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:30:08,897 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:30:08,898 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:30:08,898 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:30:08,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:30:08,898 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:30:08,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:30:08,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:30:08,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:30:08,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:30:08,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:30:08,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:30:08,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:30:08,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:30:08,901 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:30:08,901 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:30:08,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:30:08,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:30:08,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:30:08,902 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_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43bf83586090da08f52ccb7b612d2451c8f1efe9c820d873134ac51350c022e3 [2022-11-22 01:30:09,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:30:09,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:30:09,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:30:09,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:30:09,333 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:30:09,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/list-simple/sll2n_insert_equal.i [2022-11-22 01:30:12,613 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:30:12,977 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:30:12,978 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/sv-benchmarks/c/list-simple/sll2n_insert_equal.i [2022-11-22 01:30:12,991 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/data/f3256a395/7c412b2fc91240b9a118b60d3011c697/FLAGd44dfa233 [2022-11-22 01:30:13,009 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/data/f3256a395/7c412b2fc91240b9a118b60d3011c697 [2022-11-22 01:30:13,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:30:13,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:30:13,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:30:13,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:30:13,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:30:13,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd487a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13, skipping insertion in model container [2022-11-22 01:30:13,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:30:13,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:30:13,375 WARN L237 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_1e2fd029-866d-459a-b0bf-2282fd310114/sv-benchmarks/c/list-simple/sll2n_insert_equal.i[24301,24314] [2022-11-22 01:30:13,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:30:13,401 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:30:13,473 WARN L237 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_1e2fd029-866d-459a-b0bf-2282fd310114/sv-benchmarks/c/list-simple/sll2n_insert_equal.i[24301,24314] [2022-11-22 01:30:13,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:30:13,518 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:30:13,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13 WrapperNode [2022-11-22 01:30:13,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:30:13,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:30:13,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:30:13,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:30:13,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,608 INFO L138 Inliner]: procedures = 130, calls = 32, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 120 [2022-11-22 01:30:13,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:30:13,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:30:13,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:30:13,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:30:13,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,673 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:30:13,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:30:13,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:30:13,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:30:13,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (1/1) ... [2022-11-22 01:30:13,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:30:13,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:13,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:30:13,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:30:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:30:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-22 01:30:13,802 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-22 01:30:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:30:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:30:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:30:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:30:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:30:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:30:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:30:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:30:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:30:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:30:13,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:30:14,013 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:30:14,016 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:30:14,363 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:30:14,370 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:30:14,370 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 01:30:14,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:30:14 BoogieIcfgContainer [2022-11-22 01:30:14,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:30:14,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:30:14,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:30:14,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:30:14,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:30:13" (1/3) ... [2022-11-22 01:30:14,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7c5252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:30:14, skipping insertion in model container [2022-11-22 01:30:14,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:13" (2/3) ... [2022-11-22 01:30:14,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7c5252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:30:14, skipping insertion in model container [2022-11-22 01:30:14,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:30:14" (3/3) ... [2022-11-22 01:30:14,383 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2n_insert_equal.i [2022-11-22 01:30:14,404 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:30:14,404 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:30:14,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:30:14,474 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;@68944284, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:30:14,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:30:14,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:30:14,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:30:14,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:14,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:14,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:30:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:14,494 INFO L85 PathProgramCache]: Analyzing trace with hash -497301104, now seen corresponding path program 1 times [2022-11-22 01:30:14,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:30:14,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104868918] [2022-11-22 01:30:14,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:14,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:14,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:30:14,518 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:30:14,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 01:30:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:14,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 01:30:14,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:14,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:30:14,811 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:30:14,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104868918] [2022-11-22 01:30:14,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104868918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:14,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:14,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:30:14,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447139940] [2022-11-22 01:30:14,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:14,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:30:14,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:30:14,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:30:14,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:30:14,851 INFO L87 Difference]: Start difference. First operand has 30 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:30:14,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:14,873 INFO L93 Difference]: Finished difference Result 54 states and 75 transitions. [2022-11-22 01:30:14,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:30:14,876 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-22 01:30:14,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:14,884 INFO L225 Difference]: With dead ends: 54 [2022-11-22 01:30:14,884 INFO L226 Difference]: Without dead ends: 24 [2022-11-22 01:30:14,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:30:14,902 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:14,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:30:14,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-22 01:30:14,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-22 01:30:14,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:30:14,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-22 01:30:14,955 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 19 [2022-11-22 01:30:14,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:14,955 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-22 01:30:14,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:30:14,956 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-11-22 01:30:14,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:30:14,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:14,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:14,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-22 01:30:15,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:15,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:30:15,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:15,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1988891516, now seen corresponding path program 1 times [2022-11-22 01:30:15,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:30:15,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663292492] [2022-11-22 01:30:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:15,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:15,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:30:15,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:30:15,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 01:30:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:15,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:30:15,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:15,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:15,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:30:15,495 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:30:15,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663292492] [2022-11-22 01:30:15,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663292492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:15,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:15,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:30:15,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191429818] [2022-11-22 01:30:15,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:15,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:30:15,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:30:15,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:30:15,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:30:15,504 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:30:15,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:15,539 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2022-11-22 01:30:15,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:30:15,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-22 01:30:15,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:15,543 INFO L225 Difference]: With dead ends: 46 [2022-11-22 01:30:15,544 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 01:30:15,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:30:15,546 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:15,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 53 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:30:15,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 01:30:15,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2022-11-22 01:30:15,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:30:15,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-11-22 01:30:15,564 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 19 [2022-11-22 01:30:15,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:15,565 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-11-22 01:30:15,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:30:15,565 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-22 01:30:15,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 01:30:15,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:15,567 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:15,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:15,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:15,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:30:15,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:15,781 INFO L85 PathProgramCache]: Analyzing trace with hash 208174980, now seen corresponding path program 1 times [2022-11-22 01:30:15,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:30:15,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684678887] [2022-11-22 01:30:15,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:15,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:15,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:30:15,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:30:15,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-22 01:30:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:15,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:30:15,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:16,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:16,178 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:30:16,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:30:16,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684678887] [2022-11-22 01:30:16,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684678887] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:16,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1604855563] [2022-11-22 01:30:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:16,184 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:30:16,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:30:16,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:30:16,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-22 01:30:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:16,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:30:16,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:30:16,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:30:16,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1604855563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:16,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:30:16,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2022-11-22 01:30:16,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957006561] [2022-11-22 01:30:16,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:16,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:30:16,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:30:16,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:30:16,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:30:16,483 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:30:16,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:16,542 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2022-11-22 01:30:16,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:30:16,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-22 01:30:16,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:16,547 INFO L225 Difference]: With dead ends: 41 [2022-11-22 01:30:16,547 INFO L226 Difference]: Without dead ends: 34 [2022-11-22 01:30:16,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:30:16,549 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 52 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 [2022-11-22 01:30:16,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 52 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:30:16,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-22 01:30:16,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 27. [2022-11-22 01:30:16,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:30:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-11-22 01:30:16,558 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 28 [2022-11-22 01:30:16,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:16,559 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-11-22 01:30:16,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:30:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-11-22 01:30:16,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 01:30:16,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:16,561 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:16,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:16,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:16,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:30:16,984 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:30:16,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:16,984 INFO L85 PathProgramCache]: Analyzing trace with hash 265433282, now seen corresponding path program 1 times [2022-11-22 01:30:16,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:30:16,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726156786] [2022-11-22 01:30:16,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:16,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:16,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:30:16,991 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:30:17,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-22 01:30:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:17,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:30:17,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:17,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:17,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:30:17,362 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:30:17,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726156786] [2022-11-22 01:30:17,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726156786] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:17,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1093220950] [2022-11-22 01:30:17,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:17,369 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:30:17,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:30:17,371 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:30:17,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-22 01:30:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:17,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:30:17,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:17,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:17,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:17,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:30:17,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1093220950] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:17,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024558576] [2022-11-22 01:30:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:17,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:17,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:17,699 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:17,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:30:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:17,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:30:17,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:17,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:17,952 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:30:17,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024558576] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:17,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:30:17,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 5] total 7 [2022-11-22 01:30:17,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107145367] [2022-11-22 01:30:17,953 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:30:17,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:30:17,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:30:17,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:30:17,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:30:17,955 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-22 01:30:18,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:18,065 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2022-11-22 01:30:18,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:30:18,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2022-11-22 01:30:18,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:18,067 INFO L225 Difference]: With dead ends: 59 [2022-11-22 01:30:18,067 INFO L226 Difference]: Without dead ends: 39 [2022-11-22 01:30:18,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:30:18,069 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 29 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:18,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 89 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:30:18,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-22 01:30:18,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-22 01:30:18,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:30:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2022-11-22 01:30:18,079 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 28 [2022-11-22 01:30:18,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:18,079 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2022-11-22 01:30:18,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-22 01:30:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2022-11-22 01:30:18,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-22 01:30:18,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:18,081 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:18,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:18,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:18,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:18,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:18,685 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:30:18,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:18,686 INFO L85 PathProgramCache]: Analyzing trace with hash -883753534, now seen corresponding path program 2 times [2022-11-22 01:30:18,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:30:18,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349330386] [2022-11-22 01:30:18,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:30:18,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:18,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:30:18,689 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:30:18,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-22 01:30:18,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-22 01:30:18,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:30:18,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:30:18,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:30:18,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:30:18,901 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:30:18,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349330386] [2022-11-22 01:30:18,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349330386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:18,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:18,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:30:18,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081902047] [2022-11-22 01:30:18,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:18,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:30:18,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:30:18,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:30:18,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:30:18,905 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:30:18,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:18,970 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2022-11-22 01:30:18,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:30:18,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-11-22 01:30:18,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:18,973 INFO L225 Difference]: With dead ends: 46 [2022-11-22 01:30:18,973 INFO L226 Difference]: Without dead ends: 38 [2022-11-22 01:30:18,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:30:18,974 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 15 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:18,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 56 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:30:18,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-22 01:30:18,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-22 01:30:18,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:30:18,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-11-22 01:30:18,991 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 37 [2022-11-22 01:30:18,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:18,992 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-11-22 01:30:18,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:30:18,992 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-22 01:30:18,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 01:30:18,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:18,997 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:19,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:19,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:19,212 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:30:19,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:19,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1457377551, now seen corresponding path program 1 times [2022-11-22 01:30:19,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:30:19,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387429433] [2022-11-22 01:30:19,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:19,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:19,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:30:19,215 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:30:19,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-22 01:30:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:19,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-22 01:30:19,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:19,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 [2022-11-22 01:30:20,096 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 8 [2022-11-22 01:30:20,347 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_1 (_ BitVec 32))) (and (bvult v_arrayElimCell_1 |c_#StackHeapBarrier|) (not (= v_arrayElimCell_1 (_ bv0 32))))) (not (= (bvadd |c_#StackHeapBarrier| (_ bv1 32)) (_ bv0 32))) (exists ((v_ArrVal_398 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_node_create_#res#1.base| v_ArrVal_398) |c_#memory_$Pointer$.base|)) (bvult |c_node_create_#res#1.base| |c_#StackHeapBarrier|)) is different from true [2022-11-22 01:30:20,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:20,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 22 [2022-11-22 01:30:21,123 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:30:21,124 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2022-11-22 01:30:21,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:21,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 22 [2022-11-22 01:30:21,651 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 11 [2022-11-22 01:30:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 4 not checked. [2022-11-22 01:30:21,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:21,862 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_400 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_400) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (_ bv0 32)))) is different from false [2022-11-22 01:30:22,440 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:30:22,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387429433] [2022-11-22 01:30:22,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387429433] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:22,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [146822938] [2022-11-22 01:30:22,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:22,440 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:30:22,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:30:22,442 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:30:22,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-22 01:30:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:22,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-22 01:30:22,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:23,842 INFO L321 Elim1Store]: treesize reduction 23, result has 47.7 percent of original size [2022-11-22 01:30:23,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 57 [2022-11-22 01:30:23,897 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:30:23,897 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 56 [2022-11-22 01:30:23,953 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 32 [2022-11-22 01:30:24,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:24,498 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:30:24,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 71 [2022-11-22 01:30:24,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:24,521 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 61 treesize of output 61 [2022-11-22 01:30:27,124 INFO L350 Elim1Store]: Elim1 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 114 treesize of output 98 [2022-11-22 01:30:27,179 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:30:27,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 89 [2022-11-22 01:30:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 01:30:27,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:27,865 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_469 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_469) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (_ bv0 32)))) (forall ((v_ArrVal_470 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_470) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (_ bv0 32))))) is different from false [2022-11-22 01:30:28,535 INFO L321 Elim1Store]: treesize reduction 21, result has 65.0 percent of original size [2022-11-22 01:30:28,535 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 79 [2022-11-22 01:30:28,570 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:30:28,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 172 treesize of output 163 [2022-11-22 01:30:28,595 INFO L350 Elim1Store]: Elim1 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 114 treesize of output 110 [2022-11-22 01:30:28,608 INFO L350 Elim1Store]: Elim1 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 110 treesize of output 102 [2022-11-22 01:30:28,712 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:30:28,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 78 [2022-11-22 01:30:28,733 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 18 [2022-11-22 01:30:29,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [146822938] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:29,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443481731] [2022-11-22 01:30:29,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:29,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:29,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:29,895 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:29,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 01:30:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:30,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-22 01:30:30,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:30,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2022-11-22 01:30:30,310 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 5 [2022-11-22 01:30:30,730 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 01:30:30,730 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 20 [2022-11-22 01:30:31,100 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 5 [2022-11-22 01:30:31,444 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-22 01:30:31,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-22 01:30:32,302 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 9 [2022-11-22 01:30:32,896 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:30:32,897 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 23 treesize of output 27 [2022-11-22 01:30:32,912 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-22 01:30:33,803 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:30:33,803 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2022-11-22 01:30:34,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:34,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 23 [2022-11-22 01:30:34,409 INFO L350 Elim1Store]: Elim1 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 24 treesize of output 12 [2022-11-22 01:30:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:30:34,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:35,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443481731] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:35,897 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:30:35,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 22] total 47 [2022-11-22 01:30:35,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961499208] [2022-11-22 01:30:35,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:30:35,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-22 01:30:35,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:30:35,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-22 01:30:35,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=3277, Unknown=125, NotChecked=360, Total=4032 [2022-11-22 01:30:35,901 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 47 states, 44 states have (on average 1.6590909090909092) internal successors, (73), 38 states have internal predecessors, (73), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-22 01:30:47,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:30:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:51,118 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2022-11-22 01:30:51,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 01:30:51,119 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 44 states have (on average 1.6590909090909092) internal successors, (73), 38 states have internal predecessors, (73), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) Word has length 38 [2022-11-22 01:30:51,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:51,120 INFO L225 Difference]: With dead ends: 63 [2022-11-22 01:30:51,120 INFO L226 Difference]: Without dead ends: 56 [2022-11-22 01:30:51,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1569 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=667, Invalid=5528, Unknown=137, NotChecked=474, Total=6806 [2022-11-22 01:30:51,124 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 271 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 40 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:51,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 336 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 491 Invalid, 29 Unknown, 43 Unchecked, 6.2s Time] [2022-11-22 01:30:51,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-22 01:30:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 43. [2022-11-22 01:30:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:30:51,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2022-11-22 01:30:51,139 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 38 [2022-11-22 01:30:51,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:51,139 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2022-11-22 01:30:51,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 44 states have (on average 1.6590909090909092) internal successors, (73), 38 states have internal predecessors, (73), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-22 01:30:51,140 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2022-11-22 01:30:51,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 01:30:51,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:51,141 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:51,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:51,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:51,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:51,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:30:51,757 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:30:51,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:51,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1457379225, now seen corresponding path program 1 times [2022-11-22 01:30:51,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:30:51,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719416570] [2022-11-22 01:30:51,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:51,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:30:51,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:30:51,759 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:30:51,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-22 01:30:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:52,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-22 01:30:52,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:52,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2022-11-22 01:30:52,243 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 01:30:52,419 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:30:52,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:52,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 20 [2022-11-22 01:30:52,805 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 18 [2022-11-22 01:30:52,812 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 5 [2022-11-22 01:30:52,818 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:30:52,828 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:30:53,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:53,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 34 [2022-11-22 01:30:53,260 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-22 01:30:53,260 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 18 treesize of output 28 [2022-11-22 01:30:53,276 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:30:53,296 INFO L321 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2022-11-22 01:30:53,297 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 17 [2022-11-22 01:30:53,346 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:30:53,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-22 01:30:53,355 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:30:53,979 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:30:53,980 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 65 [2022-11-22 01:30:54,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:54,011 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 37 treesize of output 32 [2022-11-22 01:30:54,042 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 01:30:54,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 18 treesize of output 28 [2022-11-22 01:30:54,057 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:30:54,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:54,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 33 treesize of output 31 [2022-11-22 01:30:54,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 18 treesize of output 20 [2022-11-22 01:30:54,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:54,485 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:30:54,758 INFO L350 Elim1Store]: Elim1 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 34 treesize of output 18 [2022-11-22 01:30:54,769 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:30:54,929 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-22 01:30:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:30:54,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:55,197 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_619 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_618 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_617) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_619) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_618) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) |c_ULTIMATE.start_main_~data~0#1|)) is different from false [2022-11-22 01:30:58,231 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:30:58,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719416570] [2022-11-22 01:30:58,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719416570] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:58,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1532754208] [2022-11-22 01:30:58,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:58,232 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:30:58,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:30:58,233 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:30:58,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-22 01:30:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:58,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-22 01:30:58,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:58,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2022-11-22 01:30:59,002 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 01:30:59,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:59,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 20 [2022-11-22 01:31:00,111 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 18 [2022-11-22 01:31:00,117 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:31:00,129 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:31:00,137 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 5 [2022-11-22 01:31:00,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 12 [2022-11-22 01:31:00,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:00,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 34 [2022-11-22 01:31:00,940 INFO L321 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2022-11-22 01:31:00,940 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 17 [2022-11-22 01:31:00,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 18 treesize of output 20 [2022-11-22 01:31:01,008 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:31:01,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-22 01:31:01,022 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:31:02,287 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:31:02,288 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 78 [2022-11-22 01:31:02,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:02,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 42 [2022-11-22 01:31:02,350 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-22 01:31:02,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 27 [2022-11-22 01:31:02,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:02,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 33 treesize of output 31 [2022-11-22 01:31:02,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:31:02,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:02,963 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:31:03,518 INFO L350 Elim1Store]: Elim1 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 34 treesize of output 18 [2022-11-22 01:31:03,528 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:31:03,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 01:31:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:31:03,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:31:03,863 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_708 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_709 (_ BitVec 32))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_sll_insert_~new_node~0#1.offset|) v_ArrVal_709)) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_710) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) is different from false [2022-11-22 01:31:22,066 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:31:22,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 165 treesize of output 160 [2022-11-22 01:31:32,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1532754208] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:31:32,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737226964] [2022-11-22 01:31:32,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:32,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:32,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:32,860 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:32,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 01:31:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:33,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-22 01:31:33,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:33,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2022-11-22 01:31:33,477 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 5 [2022-11-22 01:31:33,865 WARN L859 $PredicateComparison]: unable to prove that (and (not (= (bvadd |c_#StackHeapBarrier| (_ bv1 32)) (_ bv0 32))) (exists ((v_ArrVal_785 (_ BitVec 1)) (|node_create_~temp~0#1.base| (_ BitVec 32))) (and (= (store |c_old(#valid)| |node_create_~temp~0#1.base| v_ArrVal_785) |c_#valid|) (= (_ bv0 1) (select |c_old(#valid)| |node_create_~temp~0#1.base|))))) is different from true [2022-11-22 01:31:34,004 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-22 01:31:34,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-22 01:31:34,112 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 5 [2022-11-22 01:31:34,656 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 01:31:35,095 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-22 01:31:35,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-22 01:31:35,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:35,509 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:31:36,706 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 12 [2022-11-22 01:31:36,717 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-22 01:31:36,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:31:37,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:37,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 37 treesize of output 35 [2022-11-22 01:31:37,477 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-22 01:31:37,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 18 treesize of output 28 [2022-11-22 01:31:37,506 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:31:37,579 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-11-22 01:31:37,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2022-11-22 01:31:37,652 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:31:42,189 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:31:42,190 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-11-22 01:31:42,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:42,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2022-11-22 01:31:42,213 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:31:43,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:43,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 34 treesize of output 32 [2022-11-22 01:31:43,160 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:31:43,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:43,188 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:31:44,888 INFO L350 Elim1Store]: Elim1 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 35 treesize of output 19 [2022-11-22 01:31:44,906 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-22 01:31:45,384 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:31:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 8 not checked. [2022-11-22 01:31:45,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:31:45,428 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_799 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_800 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_801 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_801) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_799) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) is different from false [2022-11-22 01:32:14,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737226964] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:32:14,785 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:32:14,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 21] total 50 [2022-11-22 01:32:14,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404125509] [2022-11-22 01:32:14,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:32:14,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-22 01:32:14,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:32:14,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-22 01:32:14,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=3384, Unknown=259, NotChecked=500, Total=4422 [2022-11-22 01:32:14,788 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 50 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 41 states have internal predecessors, (77), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-22 01:32:23,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:32:37,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:37,246 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2022-11-22 01:32:37,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 01:32:37,249 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 41 states have internal predecessors, (77), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) Word has length 38 [2022-11-22 01:32:37,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:37,250 INFO L225 Difference]: With dead ends: 53 [2022-11-22 01:32:37,250 INFO L226 Difference]: Without dead ends: 51 [2022-11-22 01:32:37,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 87.2s TimeCoverageRelationStatistics Valid=615, Invalid=5147, Unknown=260, NotChecked=620, Total=6642 [2022-11-22 01:32:37,253 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 230 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 51 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:37,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 304 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 700 Invalid, 7 Unknown, 41 Unchecked, 9.6s Time] [2022-11-22 01:32:37,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-22 01:32:37,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2022-11-22 01:32:37,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:32:37,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2022-11-22 01:32:37,275 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 38 [2022-11-22 01:32:37,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:37,275 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2022-11-22 01:32:37,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 41 states have internal predecessors, (77), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-22 01:32:37,275 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2022-11-22 01:32:37,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-22 01:32:37,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:37,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:32:37,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:37,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:37,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:37,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:32:37,887 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:32:37,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:37,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1501962780, now seen corresponding path program 2 times [2022-11-22 01:32:37,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:32:37,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313548971] [2022-11-22 01:32:37,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:32:37,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:32:37,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:32:37,890 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:32:37,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-22 01:32:38,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:32:38,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:32:38,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:32:38,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:38,224 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:32:38,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:32:39,193 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:32:39,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313548971] [2022-11-22 01:32:39,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313548971] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:32:39,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [598724260] [2022-11-22 01:32:39,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:32:39,194 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:32:39,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:32:39,195 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:32:39,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-22 01:32:39,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:32:39,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:32:39,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:32:39,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:32:39,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:32:40,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [598724260] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:32:40,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415306717] [2022-11-22 01:32:40,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:32:40,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:40,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:32:40,272 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:32:40,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-22 01:32:40,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:32:40,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:32:40,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:32:40,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:40,758 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:32:40,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:32:41,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415306717] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:32:41,311 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:32:41,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2022-11-22 01:32:41,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923457150] [2022-11-22 01:32:41,312 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:32:41,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:32:41,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:32:41,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:32:41,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:32:41,313 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:32:41,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:41,428 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2022-11-22 01:32:41,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:32:41,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 39 [2022-11-22 01:32:41,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:41,430 INFO L225 Difference]: With dead ends: 49 [2022-11-22 01:32:41,430 INFO L226 Difference]: Without dead ends: 40 [2022-11-22 01:32:41,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:32:41,431 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 23 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:41,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 104 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:32:41,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-22 01:32:41,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-22 01:32:41,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:32:41,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2022-11-22 01:32:41,460 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 39 [2022-11-22 01:32:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:41,460 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2022-11-22 01:32:41,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:32:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2022-11-22 01:32:41,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-22 01:32:41,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:41,463 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:32:41,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:41,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:41,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:42,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:32:42,073 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:32:42,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash 382129514, now seen corresponding path program 1 times [2022-11-22 01:32:42,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:32:42,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534105968] [2022-11-22 01:32:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:42,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:32:42,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:32:42,075 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:32:42,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-22 01:32:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:42,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-22 01:32:42,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:42,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2022-11-22 01:32:42,760 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:43,139 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 11 [2022-11-22 01:32:43,155 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 5 [2022-11-22 01:32:43,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 [2022-11-22 01:32:43,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:43,621 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-22 01:32:43,685 INFO L321 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2022-11-22 01:32:43,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-11-22 01:32:44,362 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-22 01:32:44,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 37 [2022-11-22 01:32:44,466 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 01:32:44,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 28 treesize of output 38 [2022-11-22 01:32:44,484 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 13 [2022-11-22 01:32:44,835 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-22 01:32:44,836 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 88 [2022-11-22 01:32:44,891 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:32:44,892 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 77 [2022-11-22 01:32:45,336 INFO L350 Elim1Store]: Elim1 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 65 treesize of output 49 [2022-11-22 01:32:45,555 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-22 01:32:45,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 21 [2022-11-22 01:32:45,964 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:32:45,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:46,513 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1067 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1068))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1067) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (_ bv0 32)))) is different from false [2022-11-22 01:32:48,653 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:32:48,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6502 treesize of output 6226 [2022-11-22 01:32:48,799 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:32:48,799 INFO L350 Elim1Store]: Elim1 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 6214 treesize of output 6079 [2022-11-22 01:32:48,825 INFO L350 Elim1Store]: Elim1 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 6070 treesize of output 6038 [2022-11-22 01:32:48,855 INFO L350 Elim1Store]: Elim1 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 6038 treesize of output 5974 [2022-11-22 01:32:51,884 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse9 (= |c_ULTIMATE.start_sll_insert_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|))) (let ((.cse24 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_124 (_ BitVec 32)) (v_arrayElimCell_126 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse46 (select v_ArrVal_1074 |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse46)) (not (= (select (let ((.cse47 (store (let ((.cse48 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~head#1.base| v_ArrVal_1074))) (store .cse48 .cse46 (store (select .cse48 .cse46) (bvadd v_arrayElimCell_124 (_ bv4 32)) |c_ULTIMATE.start_sll_insert_~head#1.base|))) |c_ULTIMATE.start_sll_insert_~head#1.base| v_ArrVal_1068))) (select .cse47 (select (select .cse47 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd v_arrayElimCell_126 (_ bv4 32))) (_ bv0 32))))))) (.cse38 (not .cse9)) (.cse20 (not (= (select |c_#valid| |c_ULTIMATE.start_sll_insert_~head#1.base|) (_ bv0 1)))) (.cse21 (not (bvult |c_ULTIMATE.start_sll_insert_~head#1.base| |c_#StackHeapBarrier|))) (.cse22 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_124 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse43 (select v_ArrVal_1074 |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse43) (not (= (select (let ((.cse44 (store (let ((.cse45 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~head#1.base| v_ArrVal_1074))) (store .cse45 .cse43 (store (select .cse45 .cse43) (bvadd v_arrayElimCell_124 (_ bv4 32)) |c_ULTIMATE.start_sll_insert_~head#1.base|))) |c_ULTIMATE.start_sll_insert_~head#1.base| v_ArrVal_1068))) (select .cse44 (select (select .cse44 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd v_arrayElimCell_122 (_ bv4 32))) (_ bv0 32))))))) (.cse23 (= |c_ULTIMATE.start_sll_insert_~head#1.base| (_ bv0 32)))) (let ((.cse5 (or .cse9 .cse20 .cse21 .cse22 .cse23)) (.cse8 (or .cse38 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_124 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32))) (let ((.cse41 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse42 (select (select .cse41 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (select (select (store (store .cse41 .cse42 (store (select .cse41 .cse42) (bvadd v_arrayElimCell_124 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse42)))))))) (.cse12 (or .cse38 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_124 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32))) (let ((.cse39 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse40 (select (select .cse39 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (select (select (store (store .cse39 .cse40 (store (select .cse39 .cse40) (bvadd v_arrayElimCell_124 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))) (_ bv0 32))) (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse40))))))) (.cse14 (or .cse24 .cse9 .cse20 .cse21 .cse23)) (.cse6 (not (= (select |c_#valid| |c_ULTIMATE.start_main_~#s~0#1.base|) (_ bv0 1)))) (.cse7 (not (bvult |c_ULTIMATE.start_main_~#s~0#1.base| |c_#StackHeapBarrier|))) (.cse13 (= |c_ULTIMATE.start_main_~#s~0#1.base| (_ bv0 32))) (.cse10 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_123 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32))) (let ((.cse36 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse37 (select (select .cse36 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (_ bv0 32) (select (select (store (store .cse36 .cse37 (store (select .cse36 .cse37) (bvadd v_arrayElimCell_123 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))))) (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse37)))))) (.cse11 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_123 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32))) (let ((.cse34 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse35 (select (select .cse34 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (_ bv0 32) (select (select (store (store .cse34 .cse35 (store (select .cse34 .cse35) (bvadd v_arrayElimCell_123 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))))) (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse35))))))) (.cse4 (forall ((|v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ BitVec 32))) (or (= |c_ULTIMATE.start_sll_insert_~head#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_123 (_ BitVec 32)) (v_arrayElimCell_126 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse32 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1074))) (let ((.cse33 (select (select .cse32 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (select (let ((.cse31 (store (store .cse32 .cse33 (store (select .cse32 .cse33) (bvadd v_arrayElimCell_123 (_ bv4 32)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1068))) (select .cse31 (select (select .cse31 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd v_arrayElimCell_126 (_ bv4 32))) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse33)))))) (not (bvult |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| |c_#StackHeapBarrier|)) (= |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ bv0 32)) (= |c_ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|)))))) (.cse15 (forall ((|v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ BitVec 32))) (or (= |c_ULTIMATE.start_sll_insert_~head#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (bvult |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_123 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse30 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1074))) (let ((.cse28 (select (select .cse30 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse28) (not (= (select (let ((.cse29 (store (store .cse30 .cse28 (store (select .cse30 .cse28) (bvadd v_arrayElimCell_123 (_ bv4 32)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1068))) (select .cse29 (select (select .cse29 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd v_arrayElimCell_122 (_ bv4 32))) (_ bv0 32))))))) (= |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ bv0 32)) (= |c_ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|))))))) (and (forall ((|v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ BitVec 32))) (or (= |c_ULTIMATE.start_sll_insert_~head#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (bvult |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| |c_#StackHeapBarrier|)) (= |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ bv0 32)) (= |c_ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|))) (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1074))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse0) (not (= (let ((.cse3 (bvadd v_arrayElimCell_122 (_ bv4 32)))) (select (let ((.cse1 (store (store .cse2 .cse0 (store (select .cse2 .cse0) .cse3 |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1068))) (select .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) .cse3)) (_ bv0 32))))))))) (or (= |c_ULTIMATE.start_main_~#s~0#1.offset| |c_ULTIMATE.start_sll_insert_~head#1.offset|) (and .cse4 .cse5 (or .cse6 .cse7 (and .cse8 (or .cse9 .cse10) (or .cse9 .cse11) .cse12) .cse13) .cse14 .cse15)) .cse5 (or .cse6 .cse7 .cse13 (and .cse8 .cse12 (or .cse9 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32)) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse16 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse17 (select (select .cse16 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (select (select (store (store .cse16 .cse17 (store (select .cse16 .cse17) (bvadd v_arrayElimCell_122 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse17))))))) (or .cse9 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32)) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse19 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse18 (select (select .cse19 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse18) (not (= (select (select (store (store .cse19 .cse18 (store (select .cse19 .cse18) (bvadd v_arrayElimCell_122 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))) (_ bv0 32)))))))))) .cse14 (or .cse9 (and (or .cse6 .cse7 .cse13 (and .cse10 .cse11)) .cse4 (or .cse20 .cse21 .cse22 .cse23) (or .cse24 .cse20 .cse21 .cse23) .cse15)) (forall ((|v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ BitVec 32))) (or (= |c_ULTIMATE.start_sll_insert_~head#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (bvult |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| |c_#StackHeapBarrier|)) (= |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ bv0 32)) (= |c_ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_126 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse26 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1074))) (let ((.cse27 (select (select .cse26 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (_ bv0 32) (select (let ((.cse25 (store (store .cse26 .cse27 (store (select .cse26 .cse27) (bvadd v_arrayElimCell_122 (_ bv4 32)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1068))) (select .cse25 (select (select .cse25 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd v_arrayElimCell_126 (_ bv4 32))))) (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse27)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|))))))))) is different from false [2022-11-22 01:32:53,911 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse9 (= |c_ULTIMATE.start_sll_insert_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|))) (let ((.cse24 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_124 (_ BitVec 32)) (v_arrayElimCell_126 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse46 (select v_ArrVal_1074 |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse46)) (not (= (select (let ((.cse47 (store (let ((.cse48 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~head#1.base| v_ArrVal_1074))) (store .cse48 .cse46 (store (select .cse48 .cse46) (bvadd v_arrayElimCell_124 (_ bv4 32)) |c_ULTIMATE.start_sll_insert_~head#1.base|))) |c_ULTIMATE.start_sll_insert_~head#1.base| v_ArrVal_1068))) (select .cse47 (select (select .cse47 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd v_arrayElimCell_126 (_ bv4 32))) (_ bv0 32))))))) (.cse38 (not .cse9)) (.cse20 (not (= (select |c_#valid| |c_ULTIMATE.start_sll_insert_~head#1.base|) (_ bv0 1)))) (.cse21 (not (bvult |c_ULTIMATE.start_sll_insert_~head#1.base| |c_#StackHeapBarrier|))) (.cse22 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_124 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse43 (select v_ArrVal_1074 |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse43) (not (= (select (let ((.cse44 (store (let ((.cse45 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~head#1.base| v_ArrVal_1074))) (store .cse45 .cse43 (store (select .cse45 .cse43) (bvadd v_arrayElimCell_124 (_ bv4 32)) |c_ULTIMATE.start_sll_insert_~head#1.base|))) |c_ULTIMATE.start_sll_insert_~head#1.base| v_ArrVal_1068))) (select .cse44 (select (select .cse44 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd v_arrayElimCell_122 (_ bv4 32))) (_ bv0 32))))))) (.cse23 (= |c_ULTIMATE.start_sll_insert_~head#1.base| (_ bv0 32)))) (let ((.cse5 (or .cse9 .cse20 .cse21 .cse22 .cse23)) (.cse8 (or .cse38 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_124 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32))) (let ((.cse41 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse42 (select (select .cse41 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (select (select (store (store .cse41 .cse42 (store (select .cse41 .cse42) (bvadd v_arrayElimCell_124 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse42)))))))) (.cse12 (or .cse38 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_124 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32))) (let ((.cse39 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse40 (select (select .cse39 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (select (select (store (store .cse39 .cse40 (store (select .cse39 .cse40) (bvadd v_arrayElimCell_124 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))) (_ bv0 32))) (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse40))))))) (.cse14 (or .cse24 .cse9 .cse20 .cse21 .cse23)) (.cse6 (not (= (select |c_#valid| |c_ULTIMATE.start_main_~#s~0#1.base|) (_ bv0 1)))) (.cse7 (not (bvult |c_ULTIMATE.start_main_~#s~0#1.base| |c_#StackHeapBarrier|))) (.cse13 (= |c_ULTIMATE.start_main_~#s~0#1.base| (_ bv0 32))) (.cse10 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_123 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32))) (let ((.cse36 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse37 (select (select .cse36 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (_ bv0 32) (select (select (store (store .cse36 .cse37 (store (select .cse36 .cse37) (bvadd v_arrayElimCell_123 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))))) (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse37)))))) (.cse11 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_123 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32))) (let ((.cse34 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse35 (select (select .cse34 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (_ bv0 32) (select (select (store (store .cse34 .cse35 (store (select .cse34 .cse35) (bvadd v_arrayElimCell_123 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))))) (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse35))))))) (.cse4 (forall ((|v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ BitVec 32))) (or (= |c_ULTIMATE.start_sll_insert_~head#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_123 (_ BitVec 32)) (v_arrayElimCell_126 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse32 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1074))) (let ((.cse33 (select (select .cse32 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (select (let ((.cse31 (store (store .cse32 .cse33 (store (select .cse32 .cse33) (bvadd v_arrayElimCell_123 (_ bv4 32)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1068))) (select .cse31 (select (select .cse31 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd v_arrayElimCell_126 (_ bv4 32))) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse33)))))) (not (bvult |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| |c_#StackHeapBarrier|)) (= |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ bv0 32)) (= |c_ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|)))))) (.cse15 (forall ((|v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ BitVec 32))) (or (= |c_ULTIMATE.start_sll_insert_~head#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (bvult |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_123 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse30 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1074))) (let ((.cse28 (select (select .cse30 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse28) (not (= (select (let ((.cse29 (store (store .cse30 .cse28 (store (select .cse30 .cse28) (bvadd v_arrayElimCell_123 (_ bv4 32)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1068))) (select .cse29 (select (select .cse29 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd v_arrayElimCell_122 (_ bv4 32))) (_ bv0 32))))))) (= |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ bv0 32)) (= |c_ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|))))))) (and (forall ((|v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ BitVec 32))) (or (= |c_ULTIMATE.start_sll_insert_~head#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (bvult |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| |c_#StackHeapBarrier|)) (= |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ bv0 32)) (= |c_ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|))) (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1074))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse0) (not (= (let ((.cse3 (bvadd v_arrayElimCell_122 (_ bv4 32)))) (select (let ((.cse1 (store (store .cse2 .cse0 (store (select .cse2 .cse0) .cse3 |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1068))) (select .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) .cse3)) (_ bv0 32))))))))) (or (= |c_ULTIMATE.start_main_~#s~0#1.offset| |c_ULTIMATE.start_sll_insert_~head#1.offset|) (and .cse4 .cse5 (or .cse6 .cse7 (and .cse8 (or .cse9 .cse10) (or .cse9 .cse11) .cse12) .cse13) .cse14 .cse15)) .cse5 (or .cse6 .cse7 .cse13 (and .cse8 .cse12 (or .cse9 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32)) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse16 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse17 (select (select .cse16 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (select (select (store (store .cse16 .cse17 (store (select .cse16 .cse17) (bvadd v_arrayElimCell_122 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse17))))))) (or .cse9 (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_127 (_ BitVec 32)) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse19 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1074))) (let ((.cse18 (select (select .cse19 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse18) (not (= (select (select (store (store .cse19 .cse18 (store (select .cse19 .cse18) (bvadd v_arrayElimCell_122 (_ bv4 32)) |c_ULTIMATE.start_main_~#s~0#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base| v_ArrVal_1068) (select v_ArrVal_1068 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (bvadd v_arrayElimCell_127 (_ bv4 32))) (_ bv0 32)))))))))) .cse14 (or .cse9 (and (or .cse6 .cse7 .cse13 (and .cse10 .cse11)) .cse4 (or .cse20 .cse21 .cse22 .cse23) (or .cse24 .cse20 .cse21 .cse23) .cse15)) (forall ((|v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ BitVec 32))) (or (= |c_ULTIMATE.start_sll_insert_~head#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (not (bvult |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| |c_#StackHeapBarrier|)) (= |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| (_ bv0 32)) (= |c_ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|) (forall ((v_ArrVal_1074 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_126 (_ BitVec 32)) (v_ArrVal_1068 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_122 (_ BitVec 32))) (let ((.cse26 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1074))) (let ((.cse27 (select (select .cse26 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (or (not (= (_ bv0 32) (select (let ((.cse25 (store (store .cse26 .cse27 (store (select .cse26 .cse27) (bvadd v_arrayElimCell_122 (_ bv4 32)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47| v_ArrVal_1068))) (select .cse25 (select (select .cse25 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd v_arrayElimCell_126 (_ bv4 32))))) (not (= |c_ULTIMATE.start_main_~#s~0#1.base| .cse27)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_47|))))))))) is different from true [2022-11-22 01:32:53,917 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:32:53,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534105968] [2022-11-22 01:32:53,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534105968] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:32:53,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1478035715] [2022-11-22 01:32:53,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:53,917 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:32:53,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:32:53,918 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:32:53,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-22 01:32:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:54,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-22 01:32:54,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:54,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2022-11-22 01:32:56,869 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 11 [2022-11-22 01:32:56,877 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:56,892 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 5 [2022-11-22 01:32:57,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:57,899 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-22 01:32:57,954 INFO L321 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2022-11-22 01:32:57,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-11-22 01:32:58,022 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:32:58,022 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 20 [2022-11-22 01:32:58,031 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:32:59,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:59,483 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 37 [2022-11-22 01:32:59,571 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 01:32:59,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 35 treesize of output 43 [2022-11-22 01:32:59,602 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 17 [2022-11-22 01:33:00,205 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-22 01:33:00,205 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 88 [2022-11-22 01:33:00,263 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:33:00,264 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 82 [2022-11-22 01:33:00,838 INFO L350 Elim1Store]: Elim1 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 72 treesize of output 52 [2022-11-22 01:33:01,223 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:33:01,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 21 [2022-11-22 01:33:01,467 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:33:01,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:33:01,512 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1143 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1144))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1143) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (_ bv0 32)))) is different from false [2022-11-22 01:33:06,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1478035715] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:33:06,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418455736] [2022-11-22 01:33:06,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:06,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:33:06,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:33:06,890 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:33:06,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-22 01:33:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:07,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-22 01:33:07,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:33:07,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2022-11-22 01:33:08,195 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-22 01:33:08,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-22 01:33:09,472 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-11-22 01:33:09,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 43 [2022-11-22 01:33:12,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:33:12,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-11-22 01:33:12,282 INFO L321 Elim1Store]: treesize reduction 18, result has 48.6 percent of original size [2022-11-22 01:33:12,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 35 [2022-11-22 01:33:12,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:33:13,703 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-22 01:33:13,703 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 38 [2022-11-22 01:33:13,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 35 [2022-11-22 01:33:14,266 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-22 01:33:14,267 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 90 [2022-11-22 01:33:14,313 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:33:14,314 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 83 [2022-11-22 01:33:14,826 INFO L350 Elim1Store]: Elim1 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 73 treesize of output 53 [2022-11-22 01:33:15,293 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 01:33:15,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 23 [2022-11-22 01:33:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:33:15,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:33:15,355 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1221 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1222 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1222))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1221) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (_ bv0 32)))) is different from false [2022-11-22 01:33:17,065 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1221 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1222 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1220 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~last~0#1.base|) (bvadd |c_ULTIMATE.start_sll_insert_~last~0#1.offset| (_ bv4 32)) |c_ULTIMATE.start_sll_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1222))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~last~0#1.base| v_ArrVal_1220) |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1221) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (_ bv0 32)))) is different from false [2022-11-22 01:33:19,108 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1221 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1222 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1220 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_sll_insert_#t~ret7#1.base_53| (_ BitVec 32)) (v_ArrVal_1227 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1228 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (let ((.cse1 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_53| v_ArrVal_1227))) (let ((.cse3 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_53| v_ArrVal_1228)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|))) (select (let ((.cse0 (store (store .cse1 .cse2 (store (select .cse1 .cse2) (bvadd (_ bv4 32) (select (select .cse3 |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_53|)) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_53| v_ArrVal_1222))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (bvadd (_ bv4 32) (select (select (store (store .cse3 .cse2 v_ArrVal_1220) |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_53| v_ArrVal_1221) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) (_ bv0 32))) (not (= (select |c_#valid| |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_53|) (_ bv0 1))) (= |v_ULTIMATE.start_sll_insert_#t~ret7#1.base_53| (_ bv0 32)))) is different from false [2022-11-22 01:33:19,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418455736] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:33:19,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:33:19,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 25] total 60 [2022-11-22 01:33:19,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979961678] [2022-11-22 01:33:19,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:33:19,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-11-22 01:33:19,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:33:19,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-11-22 01:33:19,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=4453, Unknown=269, NotChecked=858, Total=5852 [2022-11-22 01:33:19,122 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 60 states, 57 states have (on average 1.543859649122807) internal successors, (88), 49 states have internal predecessors, (88), 7 states have call successors, (7), 5 states have call predecessors, (7), 8 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-22 01:33:39,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:39,995 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2022-11-22 01:33:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 01:33:39,997 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 57 states have (on average 1.543859649122807) internal successors, (88), 49 states have internal predecessors, (88), 7 states have call successors, (7), 5 states have call predecessors, (7), 8 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) Word has length 40 [2022-11-22 01:33:39,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:39,998 INFO L225 Difference]: With dead ends: 48 [2022-11-22 01:33:39,998 INFO L226 Difference]: Without dead ends: 45 [2022-11-22 01:33:40,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 93 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 2217 ImplicationChecksByTransitivity, 39.4s TimeCoverageRelationStatistics Valid=685, Invalid=6901, Unknown=270, NotChecked=1074, Total=8930 [2022-11-22 01:33:40,001 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 201 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 32 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:40,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 529 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 837 Invalid, 8 Unknown, 0 Unchecked, 8.0s Time] [2022-11-22 01:33:40,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-22 01:33:40,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2022-11-22 01:33:40,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 34 states have internal predecessors, (38), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:33:40,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2022-11-22 01:33:40,028 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 40 [2022-11-22 01:33:40,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:40,029 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2022-11-22 01:33:40,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 57 states have (on average 1.543859649122807) internal successors, (88), 49 states have internal predecessors, (88), 7 states have call successors, (7), 5 states have call predecessors, (7), 8 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-22 01:33:40,029 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2022-11-22 01:33:40,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-22 01:33:40,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:40,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:40,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-11-22 01:33:40,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-22 01:33:40,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-22 01:33:40,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:33:40,646 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:40,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:40,646 INFO L85 PathProgramCache]: Analyzing trace with hash 382131188, now seen corresponding path program 1 times [2022-11-22 01:33:40,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:33:40,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509661363] [2022-11-22 01:33:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:40,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:33:40,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:33:40,648 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:33:40,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fd029-866d-459a-b0bf-2282fd310114/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-22 01:33:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:41,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-22 01:33:41,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:33:41,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2022-11-22 01:33:41,456 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:33:41,880 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 11 [2022-11-22 01:33:41,890 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:33:41,904 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 5 [2022-11-22 01:33:42,225 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 01:33:42,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:33:42,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 25 treesize of output 25 [2022-11-22 01:33:42,594 INFO L321 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2022-11-22 01:33:42,594 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 17 [2022-11-22 01:33:42,713 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:33:42,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-22 01:33:42,727 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:33:43,697 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-22 01:33:43,698 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 54 [2022-11-22 01:33:43,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 18 treesize of output 20 [2022-11-22 01:33:43,807 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-22 01:33:43,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 40 [2022-11-22 01:33:44,174 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-22 01:33:44,175 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 126 treesize of output 93 [2022-11-22 01:33:44,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:33:44,197 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 53 treesize of output 44 [2022-11-22 01:33:44,271 INFO L321 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2022-11-22 01:33:44,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 50 [2022-11-22 01:33:44,297 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 01:33:45,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:33:45,133 INFO L321 Elim1Store]: treesize reduction 31, result has 8.8 percent of original size [2022-11-22 01:33:45,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 47 [2022-11-22 01:33:45,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:33:45,194 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-22 01:33:45,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 18 [2022-11-22 01:33:45,653 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-22 01:33:45,786 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:33:45,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:33:46,555 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1305 (_ BitVec 32)) (v_ArrVal_1302 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1304 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1302)) (.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1304))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (bvadd (_ bv4 32) (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_sll_insert_~new_node~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_sll_insert_~new_node~0#1.offset|) v_ArrVal_1305)) (select (select .cse0 .cse1) .cse2)) (select (select .cse3 .cse1) .cse2)))) |c_ULTIMATE.start_main_~data~0#1|)) is different from false [2022-11-22 01:33:46,662 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1305 (_ BitVec 32)) (v_ArrVal_1302 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1301 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1304 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse5 (bvadd (_ bv4 32) |c_ULTIMATE.start_sll_insert_~snd_to_last~0#1.offset|))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~snd_to_last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~snd_to_last~0#1.base|) .cse5 |c_ULTIMATE.start_sll_insert_~new_node~0#1.offset|)) |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1302)) (.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~snd_to_last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~snd_to_last~0#1.base|) .cse5 |c_ULTIMATE.start_sll_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1304))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (bvadd (_ bv4 32) (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_sll_insert_~snd_to_last~0#1.base| v_ArrVal_1301))) (store .cse0 |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| (store (select .cse0 |c_ULTIMATE.start_sll_insert_~new_node~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_sll_insert_~new_node~0#1.offset|) v_ArrVal_1305))) (select (select .cse1 .cse2) .cse3)) (select (select .cse4 .cse2) .cse3))))) |c_ULTIMATE.start_main_~data~0#1|)) is different from false [2022-11-22 01:33:46,822 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1305 (_ BitVec 32)) (v_ArrVal_1302 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1301 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1304 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse5 (bvadd |c_ULTIMATE.start_sll_insert_~last~0#1.offset| (_ bv4 32)))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~last~0#1.base|) .cse5 |c_ULTIMATE.start_sll_insert_~new_node~0#1.offset|)) |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1302)) (.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~last~0#1.base|) .cse5 |c_ULTIMATE.start_sll_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| v_ArrVal_1304))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (bvadd (_ bv4 32) (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_sll_insert_~last~0#1.base| v_ArrVal_1301))) (store .cse0 |c_ULTIMATE.start_sll_insert_~new_node~0#1.base| (store (select .cse0 |c_ULTIMATE.start_sll_insert_~new_node~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_sll_insert_~new_node~0#1.offset|) v_ArrVal_1305))) (select (select .cse1 .cse2) .cse3)) (select (select .cse4 .cse2) .cse3))))))) is different from false [2022-11-22 01:33:46,994 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1305 (_ BitVec 32)) (v_ArrVal_1302 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1301 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1304 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|)) (.cse6 (bvadd (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_insert_~head#1.base|) |c_ULTIMATE.start_sll_insert_~head#1.offset|) (_ bv4 32)))) (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) .cse6 |c_ULTIMATE.start_sll_insert_#t~ret7#1.offset|)) |c_ULTIMATE.start_sll_insert_#t~ret7#1.base| v_ArrVal_1302)) (.cse2 (store (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) .cse6 |c_ULTIMATE.start_sll_insert_#t~ret7#1.base|)) |c_ULTIMATE.start_sll_insert_#t~ret7#1.base| v_ArrVal_1304))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse4 (bvadd (_ bv4 32) (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (select (select (let ((.cse0 (store |c_#memory_int| .cse1 v_ArrVal_1301))) (store .cse0 |c_ULTIMATE.start_sll_insert_#t~ret7#1.base| (store (select .cse0 |c_ULTIMATE.start_sll_insert_#t~ret7#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_sll_insert_#t~ret7#1.offset|) v_ArrVal_1305))) (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4))))))) is different from false [2022-11-22 01:33:47,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:33:47,660 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 319 treesize of output 312 [2022-11-22 01:33:47,841 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:33:47,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3128 treesize of output 2992 [2022-11-22 01:33:47,925 INFO L350 Elim1Store]: Elim1 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 3400 treesize of output 2856 [2022-11-22 01:33:52,412 INFO L350 Elim1Store]: Elim1 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 995 treesize of output 723 [2022-11-22 01:35:51,898 WARN L233 SmtUtils]: Spent 1.98m on a formula simplification that was a NOOP. DAG size: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:35:51,899 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:35:51,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1985 treesize of output 3527