./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/sll2c_append_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0 --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 b335af75f55d322161e6a270bf4669ab290ae0e9da4bc480724c7d5e3b79fdab --- 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-e04fb08 [2022-11-16 15:57:05,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:57:05,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:57:05,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:57:05,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:57:05,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:57:05,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:57:05,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:57:05,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:57:05,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:57:05,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:57:05,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:57:05,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:57:05,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:57:05,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:57:05,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:57:05,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:57:05,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:57:05,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:57:05,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:57:05,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:57:05,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:57:05,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:57:05,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:57:05,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:57:05,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:57:05,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:57:05,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:57:05,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:57:05,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:57:05,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:57:05,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:57:05,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:57:05,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:57:05,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:57:05,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:57:05,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:57:05,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:57:05,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:57:05,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:57:05,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:57:05,699 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 15:57:05,749 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:57:05,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:57:05,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:57:05,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:57:05,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:57:05,752 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:57:05,752 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:57:05,752 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:57:05,752 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:57:05,753 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:57:05,754 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:57:05,754 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:57:05,755 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:57:05,755 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:57:05,755 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:57:05,756 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:57:05,756 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:57:05,756 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:57:05,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:57:05,757 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:57:05,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:57:05,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:57:05,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:57:05,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:57:05,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:57:05,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:57:05,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:57:05,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:57:05,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:57:05,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:57:05,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:57:05,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:57:05,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:57:05,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:57:05,763 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:57:05,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:57:05,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:57:05,764 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:57:05,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:57:05,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:57:05,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:57:05,765 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_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b335af75f55d322161e6a270bf4669ab290ae0e9da4bc480724c7d5e3b79fdab [2022-11-16 15:57:06,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:57:06,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:57:06,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:57:06,131 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:57:06,132 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:57:06,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/list-simple/sll2c_append_equal.i [2022-11-16 15:57:06,214 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/data/a251a25b6/4a536033f99a44d59f633213f7d30ba3/FLAGd80d1706b [2022-11-16 15:57:06,807 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:57:06,812 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/sv-benchmarks/c/list-simple/sll2c_append_equal.i [2022-11-16 15:57:06,828 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/data/a251a25b6/4a536033f99a44d59f633213f7d30ba3/FLAGd80d1706b [2022-11-16 15:57:07,080 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/data/a251a25b6/4a536033f99a44d59f633213f7d30ba3 [2022-11-16 15:57:07,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:57:07,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:57:07,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:57:07,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:57:07,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:57:07,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54531fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07, skipping insertion in model container [2022-11-16 15:57:07,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:57:07,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:57:07,521 WARN L229 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_77a27c29-a77a-42ad-937d-7bdb0bd51796/sv-benchmarks/c/list-simple/sll2c_append_equal.i[24433,24446] [2022-11-16 15:57:07,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:57:07,544 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:57:07,616 WARN L229 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_77a27c29-a77a-42ad-937d-7bdb0bd51796/sv-benchmarks/c/list-simple/sll2c_append_equal.i[24433,24446] [2022-11-16 15:57:07,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:57:07,656 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:57:07,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07 WrapperNode [2022-11-16 15:57:07,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:57:07,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:57:07,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:57:07,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:57:07,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,710 INFO L138 Inliner]: procedures = 127, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 136 [2022-11-16 15:57:07,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:57:07,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:57:07,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:57:07,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:57:07,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,767 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:57:07,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:57:07,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:57:07,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:57:07,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (1/1) ... [2022-11-16 15:57:07,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:57:07,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:57:07,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:57:07,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:57:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 15:57:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 15:57:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-16 15:57:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-16 15:57:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 15:57:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:57:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 15:57:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 15:57:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 15:57:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:57:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 15:57:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:57:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:57:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:57:08,044 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:57:08,046 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:57:08,315 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:57:08,385 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:57:08,392 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 15:57:08,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:57:08 BoogieIcfgContainer [2022-11-16 15:57:08,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:57:08,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:57:08,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:57:08,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:57:08,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:57:07" (1/3) ... [2022-11-16 15:57:08,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32676f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:57:08, skipping insertion in model container [2022-11-16 15:57:08,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:07" (2/3) ... [2022-11-16 15:57:08,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32676f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:57:08, skipping insertion in model container [2022-11-16 15:57:08,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:57:08" (3/3) ... [2022-11-16 15:57:08,404 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_append_equal.i [2022-11-16 15:57:08,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:57:08,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 15:57:08,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:57:08,477 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;@2edc8298, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:57:08,478 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 15:57:08,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 15:57:08,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 15:57:08,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:57:08,490 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:57:08,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:57:08,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:57:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1098954130, now seen corresponding path program 1 times [2022-11-16 15:57:08,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:57:08,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789101684] [2022-11-16 15:57:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:08,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:57:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 15:57:09,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:57:09,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789101684] [2022-11-16 15:57:09,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789101684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:57:09,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:57:09,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:57:09,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51152208] [2022-11-16 15:57:09,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:57:09,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:57:09,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:57:09,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:57:09,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:57:09,040 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-11-16 15:57:09,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:57:09,088 INFO L93 Difference]: Finished difference Result 53 states and 76 transitions. [2022-11-16 15:57:09,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:57:09,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 [2022-11-16 15:57:09,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:57:09,099 INFO L225 Difference]: With dead ends: 53 [2022-11-16 15:57:09,099 INFO L226 Difference]: Without dead ends: 25 [2022-11-16 15:57:09,102 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 [2022-11-16 15:57:09,105 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:57:09,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 57 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:57:09,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-16 15:57:09,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-11-16 15:57:09,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 15:57:09,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2022-11-16 15:57:09,141 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 17 [2022-11-16 15:57:09,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:57:09,142 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2022-11-16 15:57:09,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-11-16 15:57:09,142 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-11-16 15:57:09,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 15:57:09,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:57:09,144 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:57:09,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:57:09,144 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:57:09,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:57:09,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1272861567, now seen corresponding path program 1 times [2022-11-16 15:57:09,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:57:09,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483619081] [2022-11-16 15:57:09,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:09,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:57:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:09,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:57:09,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:57:09,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483619081] [2022-11-16 15:57:09,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483619081] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:57:09,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96966687] [2022-11-16 15:57:09,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:09,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:57:09,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:57:09,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:57:09,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 15:57:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:10,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-16 15:57:10,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:57:10,332 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 8 treesize of output 4 [2022-11-16 15:57:10,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:10,463 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 15 treesize of output 17 [2022-11-16 15:57:10,523 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 [2022-11-16 15:57:10,548 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:57:10,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:57:10,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96966687] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:57:10,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [156964763] [2022-11-16 15:57:10,738 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-16 15:57:10,739 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:57:10,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:57:10,749 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:57:10,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:57:10,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:10,833 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 15:57:10,833 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 [2022-11-16 15:57:10,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:10,872 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:57:10,872 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 [2022-11-16 15:57:10,932 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 [2022-11-16 15:57:10,937 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 [2022-11-16 15:57:10,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:10,950 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 22 treesize of output 7 [2022-11-16 15:57:10,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:10,958 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 22 treesize of output 7 [2022-11-16 15:57:10,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:10,972 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 [2022-11-16 15:57:11,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:11,004 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 [2022-11-16 15:57:11,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:11,018 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 [2022-11-16 15:57:11,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:11,086 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 [2022-11-16 15:57:11,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:11,100 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 [2022-11-16 15:57:11,582 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 [2022-11-16 15:57:11,592 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 [2022-11-16 15:57:11,615 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 [2022-11-16 15:57:11,629 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 [2022-11-16 15:57:11,646 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 [2022-11-16 15:57:11,661 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:11,663 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:11,665 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:11,671 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:11,674 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:12,017 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 [2022-11-16 15:57:12,035 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 [2022-11-16 15:57:12,047 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 [2022-11-16 15:57:12,059 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 7 treesize of output 3 [2022-11-16 15:57:12,069 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 [2022-11-16 15:57:12,083 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:12,085 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:12,087 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:12,091 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:12,092 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:12,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:12,150 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 23 treesize of output 11 [2022-11-16 15:57:12,163 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 19 treesize of output 11 [2022-11-16 15:57:12,178 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 19 treesize of output 11 [2022-11-16 15:57:12,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:12,439 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 140 treesize of output 124 [2022-11-16 15:57:12,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:12,456 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 136 treesize of output 124 [2022-11-16 15:57:12,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:12,472 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 128 treesize of output 116 [2022-11-16 15:57:12,739 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 15 treesize of output 1 [2022-11-16 15:57:12,750 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 [2022-11-16 15:57:12,761 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 [2022-11-16 15:57:12,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:12,884 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:12,884 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 15 treesize of output 7 [2022-11-16 15:57:12,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:12,909 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:12,910 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 15 treesize of output 7 [2022-11-16 15:57:13,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:13,061 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:13,062 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 15 treesize of output 7 [2022-11-16 15:57:13,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:13,081 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:13,081 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 15 treesize of output 7 [2022-11-16 15:57:13,230 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 186 treesize of output 168 [2022-11-16 15:57:13,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:13,256 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 186 treesize of output 168 [2022-11-16 15:57:13,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:13,293 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 15:57:13,294 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 205 treesize of output 180 [2022-11-16 15:57:13,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:13,325 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 15:57:13,328 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 197 treesize of output 172 [2022-11-16 15:57:13,550 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-16 15:57:13,563 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 [2022-11-16 15:57:13,569 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 [2022-11-16 15:57:13,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:13,598 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 [2022-11-16 15:57:13,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:13,605 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 22 treesize of output 7 [2022-11-16 15:57:13,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:13,614 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 22 treesize of output 7 [2022-11-16 15:57:13,619 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:57:17,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [156964763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:57:17,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:57:17,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [13, 13] total 34 [2022-11-16 15:57:17,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402416528] [2022-11-16 15:57:17,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:57:17,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 15:57:17,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:57:17,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 15:57:17,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1137, Unknown=4, NotChecked=0, Total=1260 [2022-11-16 15:57:17,789 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 16 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 15:57:18,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:57:18,255 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2022-11-16 15:57:18,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 15:57:18,261 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2022-11-16 15:57:18,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:57:18,262 INFO L225 Difference]: With dead ends: 34 [2022-11-16 15:57:18,262 INFO L226 Difference]: Without dead ends: 32 [2022-11-16 15:57:18,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=119, Invalid=1137, Unknown=4, NotChecked=0, Total=1260 [2022-11-16 15:57:18,264 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 41 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 15:57:18,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 60 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 15:57:18,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-16 15:57:18,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2022-11-16 15:57:18,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 15:57:18,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-16 15:57:18,274 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 23 [2022-11-16 15:57:18,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:57:18,274 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-16 15:57:18,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 15:57:18,275 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-11-16 15:57:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 15:57:18,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:57:18,276 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:57:18,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 15:57:18,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:57:18,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:57:18,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:57:18,482 INFO L85 PathProgramCache]: Analyzing trace with hash -843775883, now seen corresponding path program 1 times [2022-11-16 15:57:18,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:57:18,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878211739] [2022-11-16 15:57:18,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:18,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:57:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:18,914 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:57:18,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:57:18,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878211739] [2022-11-16 15:57:18,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878211739] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:57:18,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488827235] [2022-11-16 15:57:18,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:18,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:57:18,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:57:18,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:57:18,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 15:57:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:19,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-16 15:57:19,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:57:19,202 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 8 treesize of output 4 [2022-11-16 15:57:19,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:19,260 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 15 treesize of output 17 [2022-11-16 15:57:19,289 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 [2022-11-16 15:57:19,305 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:57:19,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:57:19,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488827235] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:57:19,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1140357630] [2022-11-16 15:57:19,410 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-16 15:57:19,410 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:57:19,410 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:57:19,410 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:57:19,411 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:57:19,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:19,449 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:57:19,450 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 [2022-11-16 15:57:19,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:19,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 15:57:19,501 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 [2022-11-16 15:57:19,506 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 [2022-11-16 15:57:19,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:19,515 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 22 treesize of output 7 [2022-11-16 15:57:19,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:19,528 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 [2022-11-16 15:57:19,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:19,535 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 22 treesize of output 7 [2022-11-16 15:57:19,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:19,556 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 [2022-11-16 15:57:19,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:19,569 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 [2022-11-16 15:57:19,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:19,629 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 [2022-11-16 15:57:19,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:19,642 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 [2022-11-16 15:57:19,895 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 [2022-11-16 15:57:19,903 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 [2022-11-16 15:57:19,911 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 [2022-11-16 15:57:19,920 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 [2022-11-16 15:57:19,930 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 [2022-11-16 15:57:19,942 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:19,944 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:19,946 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:19,948 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:19,950 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:20,169 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 [2022-11-16 15:57:20,180 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 [2022-11-16 15:57:20,189 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 [2022-11-16 15:57:20,197 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 [2022-11-16 15:57:20,206 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 [2022-11-16 15:57:20,219 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:20,221 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:20,222 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:20,225 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:20,228 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:20,269 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 19 treesize of output 11 [2022-11-16 15:57:20,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:20,281 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 23 treesize of output 11 [2022-11-16 15:57:20,292 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 19 treesize of output 11 [2022-11-16 15:57:20,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:20,464 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 140 treesize of output 124 [2022-11-16 15:57:20,482 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:20,483 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 136 treesize of output 124 [2022-11-16 15:57:20,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:20,495 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 132 treesize of output 120 [2022-11-16 15:57:20,758 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 [2022-11-16 15:57:20,773 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 15 treesize of output 1 [2022-11-16 15:57:20,784 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 [2022-11-16 15:57:20,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:20,897 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:20,898 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 15 treesize of output 7 [2022-11-16 15:57:20,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:20,915 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:20,915 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 15 treesize of output 7 [2022-11-16 15:57:21,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:21,024 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:21,025 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 15 treesize of output 7 [2022-11-16 15:57:21,038 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:21,043 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:21,043 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 15 treesize of output 7 [2022-11-16 15:57:21,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:21,180 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 182 treesize of output 166 [2022-11-16 15:57:21,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:21,198 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 182 treesize of output 166 [2022-11-16 15:57:21,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:21,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:21,228 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 15:57:21,228 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 201 treesize of output 176 [2022-11-16 15:57:21,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:21,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:21,257 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 15:57:21,258 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 168 [2022-11-16 15:57:21,501 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-16 15:57:21,510 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 [2022-11-16 15:57:21,530 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 [2022-11-16 15:57:21,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:21,550 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 [2022-11-16 15:57:21,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:21,559 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 22 treesize of output 7 [2022-11-16 15:57:21,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:21,574 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 22 treesize of output 7 [2022-11-16 15:57:21,576 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:57:26,657 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '467#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (= |ULTIMATE.start_main_~count~0#1| 1) (= |ULTIMATE.start_sll_circular_append_~head#1.base| |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= (select |#valid| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= |ULTIMATE.start_sll_circular_append_#in~data#1| |ULTIMATE.start_main_~data~0#1|) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (not (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| 0)) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 1) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_#in~data#1| |ULTIMATE.start_sll_circular_append_~data#1|) (<= 0 |#NULL.offset|) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) 4)) |ULTIMATE.start_main_~data~0#1|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (= |ULTIMATE.start_sll_circular_append_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (= 8 (select |#length| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (< |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-16 15:57:26,658 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:57:26,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:57:26,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2022-11-16 15:57:26,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265937546] [2022-11-16 15:57:26,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:57:26,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 15:57:26,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:57:26,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 15:57:26,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1269, Unknown=5, NotChecked=0, Total=1406 [2022-11-16 15:57:26,662 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-16 15:57:26,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:57:26,943 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2022-11-16 15:57:26,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 15:57:26,944 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 25 [2022-11-16 15:57:26,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:57:26,946 INFO L225 Difference]: With dead ends: 33 [2022-11-16 15:57:26,946 INFO L226 Difference]: Without dead ends: 24 [2022-11-16 15:57:26,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=166, Invalid=1635, Unknown=5, NotChecked=0, Total=1806 [2022-11-16 15:57:26,948 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:57:26,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 166 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 0 Unknown, 18 Unchecked, 0.1s Time] [2022-11-16 15:57:26,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-16 15:57:26,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2022-11-16 15:57:26,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 15:57:26,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-16 15:57:26,956 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 25 [2022-11-16 15:57:26,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:57:26,957 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-16 15:57:26,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-16 15:57:26,957 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-16 15:57:26,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 15:57:26,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:57:26,958 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:57:26,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 15:57:27,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:57:27,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:57:27,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:57:27,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1512516796, now seen corresponding path program 1 times [2022-11-16 15:57:27,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:57:27,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834901449] [2022-11-16 15:57:27,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:27,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:57:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:28,326 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:57:28,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:57:28,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834901449] [2022-11-16 15:57:28,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834901449] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:57:28,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764539700] [2022-11-16 15:57:28,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:28,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:57:28,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:57:28,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:57:28,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 15:57:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:28,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 127 conjunts are in the unsatisfiable core [2022-11-16 15:57:28,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:57:28,587 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 5 [2022-11-16 15:57:28,624 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 [2022-11-16 15:57:28,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:28,693 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 14 [2022-11-16 15:57:28,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:28,832 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 11 treesize of output 7 [2022-11-16 15:57:28,881 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 [2022-11-16 15:57:28,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:28,969 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 15:57:28,970 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 22 treesize of output 33 [2022-11-16 15:57:29,090 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 19 treesize of output 18 [2022-11-16 15:57:29,199 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 [2022-11-16 15:57:29,361 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 37 treesize of output 21 [2022-11-16 15:57:29,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:29,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 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 [2022-11-16 15:57:29,376 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 [2022-11-16 15:57:29,381 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 [2022-11-16 15:57:29,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:29,549 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 14 treesize of output 16 [2022-11-16 15:57:29,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:29,567 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 43 treesize of output 39 [2022-11-16 15:57:29,584 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-16 15:57:29,584 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 [2022-11-16 15:57:29,593 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 [2022-11-16 15:57:29,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:29,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:29,617 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-16 15:57:29,617 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 2 case distinctions, treesize of input 25 treesize of output 25 [2022-11-16 15:57:29,918 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:57:29,919 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 1 case distinctions, treesize of input 93 treesize of output 70 [2022-11-16 15:57:29,945 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-16 15:57:29,946 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 138 treesize of output 113 [2022-11-16 15:57:29,953 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 50 treesize of output 48 [2022-11-16 15:57:29,974 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-16 15:57:29,974 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 2 case distinctions, treesize of input 88 treesize of output 87 [2022-11-16 15:57:29,985 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 30 treesize of output 32 [2022-11-16 15:57:30,063 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:57:30,063 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 56 treesize of output 27 [2022-11-16 15:57:30,068 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 [2022-11-16 15:57:30,114 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 [2022-11-16 15:57:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:57:30,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:57:30,278 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_475 Int) (v_ArrVal_480 (Array Int Int)) (v_ArrVal_473 (Array Int Int)) (v_ArrVal_478 (Array Int Int)) (v_ArrVal_477 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| v_ArrVal_475)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_480) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_477) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_ArrVal_473) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_478) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2022-11-16 15:57:32,607 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_475 Int) (v_ArrVal_480 (Array Int Int)) (v_ArrVal_473 (Array Int Int)) (v_ArrVal_478 (Array Int Int)) (v_ArrVal_477 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (select (let ((.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (select (store (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) .cse1 v_ArrVal_475)) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_480) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) .cse1 |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base|)) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_477) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_473) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_478) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) is different from false [2022-11-16 15:57:32,720 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_475 Int) (v_ArrVal_490 (Array Int Int)) (v_ArrVal_492 (Array Int Int)) (v_ArrVal_491 (Array Int Int)) (v_ArrVal_480 (Array Int Int)) (|v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| Int) (v_ArrVal_473 (Array Int Int)) (v_ArrVal_478 (Array Int Int)) (v_ArrVal_477 (Array Int Int))) (or (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| v_ArrVal_490))) (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| v_ArrVal_492)) (.cse1 (select (select .cse3 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (select (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (select (store (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| v_ArrVal_491))) (store .cse0 .cse1 (store (select .cse0 .cse1) .cse2 v_ArrVal_475))) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| v_ArrVal_480) (select (select (store (store .cse3 .cse1 (store (select .cse3 .cse1) .cse2 |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20|)) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| v_ArrVal_477) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store (store .cse4 .cse1 v_ArrVal_473) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| v_ArrVal_478) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (not (< |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| |c_#StackHeapBarrier|)) (not (= (select |c_#valid| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20|) 0)))) is different from false [2022-11-16 15:57:32,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764539700] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:57:32,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1951628658] [2022-11-16 15:57:32,725 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-16 15:57:32,726 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:57:32,726 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:57:32,726 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:57:32,726 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:57:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:32,769 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:57:32,769 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 [2022-11-16 15:57:32,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:32,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 15:57:32,812 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 [2022-11-16 15:57:32,817 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 [2022-11-16 15:57:32,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:32,826 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 22 treesize of output 7 [2022-11-16 15:57:32,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:32,834 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 22 treesize of output 7 [2022-11-16 15:57:32,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:32,844 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 [2022-11-16 15:57:32,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:32,871 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 [2022-11-16 15:57:32,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:32,882 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 [2022-11-16 15:57:32,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:32,927 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 [2022-11-16 15:57:32,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:32,941 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 [2022-11-16 15:57:33,017 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 [2022-11-16 15:57:33,026 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 [2022-11-16 15:57:33,039 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 [2022-11-16 15:57:33,049 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 [2022-11-16 15:57:33,057 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 [2022-11-16 15:57:33,095 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 [2022-11-16 15:57:33,105 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 [2022-11-16 15:57:33,114 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 [2022-11-16 15:57:33,125 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 [2022-11-16 15:57:33,133 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 [2022-11-16 15:57:33,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:33,169 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 23 treesize of output 11 [2022-11-16 15:57:33,183 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 19 treesize of output 11 [2022-11-16 15:57:33,191 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 19 treesize of output 11 [2022-11-16 15:57:33,525 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:33,542 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:33,544 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:33,546 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:33,548 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:33,559 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 [2022-11-16 15:57:33,569 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 [2022-11-16 15:57:33,579 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 [2022-11-16 15:57:33,589 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 [2022-11-16 15:57:33,597 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 [2022-11-16 15:57:33,772 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:33,774 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:33,775 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:33,778 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:33,780 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:33,791 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 [2022-11-16 15:57:33,799 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 [2022-11-16 15:57:33,808 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 [2022-11-16 15:57:33,819 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 [2022-11-16 15:57:33,832 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 [2022-11-16 15:57:33,876 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 19 treesize of output 11 [2022-11-16 15:57:33,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:33,887 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 23 treesize of output 11 [2022-11-16 15:57:33,899 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 19 treesize of output 11 [2022-11-16 15:57:34,322 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 [2022-11-16 15:57:34,330 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 [2022-11-16 15:57:34,339 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 [2022-11-16 15:57:34,348 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 [2022-11-16 15:57:34,358 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 [2022-11-16 15:57:34,370 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:34,372 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:34,374 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:34,375 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:34,378 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:34,609 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:34,610 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:34,612 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:34,614 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:34,617 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:34,626 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 [2022-11-16 15:57:34,634 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 [2022-11-16 15:57:34,643 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 [2022-11-16 15:57:34,654 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 [2022-11-16 15:57:34,662 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 [2022-11-16 15:57:34,733 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:57:34,733 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 19 treesize of output 18 [2022-11-16 15:57:34,762 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:57:34,763 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 19 treesize of output 18 [2022-11-16 15:57:34,776 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 23 treesize of output 11 [2022-11-16 15:57:34,841 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 [2022-11-16 15:57:34,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:34,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:34,859 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:34,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:57:34,871 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 [2022-11-16 15:57:34,882 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 [2022-11-16 15:57:34,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:34,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:34,905 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:34,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:57:34,967 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 [2022-11-16 15:57:34,977 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 [2022-11-16 15:57:34,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:34,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:34,997 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:34,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:57:35,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:35,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:35,027 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:35,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:57:35,039 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 [2022-11-16 15:57:35,259 INFO L321 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2022-11-16 15:57:35,259 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 2 case distinctions, treesize of input 39 treesize of output 34 [2022-11-16 15:57:35,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:35,364 INFO L321 Elim1Store]: treesize reduction 120, result has 19.5 percent of original size [2022-11-16 15:57:35,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 119 treesize of output 112 [2022-11-16 15:57:35,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:35,485 INFO L321 Elim1Store]: treesize reduction 95, result has 36.2 percent of original size [2022-11-16 15:57:35,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 119 treesize of output 137 [2022-11-16 15:57:35,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:35,588 INFO L321 Elim1Store]: treesize reduction 24, result has 52.0 percent of original size [2022-11-16 15:57:35,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 45 [2022-11-16 15:57:35,609 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 [2022-11-16 15:57:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:35,643 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 16 treesize of output 12 [2022-11-16 15:57:35,662 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:35,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:35,740 INFO L321 Elim1Store]: treesize reduction 24, result has 52.0 percent of original size [2022-11-16 15:57:35,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 57 treesize of output 53 [2022-11-16 15:57:35,762 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 [2022-11-16 15:57:35,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:35,804 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:57:35,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 23 [2022-11-16 15:57:35,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:35,829 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-16 15:57:35,845 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:36,936 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2022-11-16 15:57:36,944 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 [2022-11-16 15:57:36,948 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 [2022-11-16 15:57:36,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:36,959 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 22 treesize of output 7 [2022-11-16 15:57:36,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:36,965 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 22 treesize of output 7 [2022-11-16 15:57:36,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:36,976 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 [2022-11-16 15:57:36,978 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:57:44,768 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse33 (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (let ((.cse3 (not .cse33))) (and (< 0 |c_#StackHeapBarrier|) (<= |c_ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |c_ULTIMATE.start_sll_circular_append_#in~head#1.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.offset|) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#s~0#1.base|) (<= |c_ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (let ((.cse7 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.base|))) (let ((.cse17 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (.cse5 (select .cse7 |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (.cse10 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))) (let ((.cse4 (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (.cse0 (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (.cse11 (= .cse10 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (.cse12 (= |c_ULTIMATE.start_sll_circular_append_~head#1.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (.cse16 (exists ((v_DerPreprocessor_7 (Array Int Int)) (v_DerPreprocessor_8 (Array Int Int))) (let ((.cse32 (store (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_7) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_8) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_7) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_8))) (let ((.cse30 (select (select .cse32 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (.cse31 (select .cse32 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (and (= .cse30 .cse5) (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| .cse30) (= .cse30 (select v_DerPreprocessor_8 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= (select .cse31 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (= .cse31 v_DerPreprocessor_7)))))) (.cse2 (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| .cse17)) (.cse9 (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)))) (or (let ((.cse8 (not .cse12)) (.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|))) (and (or .cse0 (and (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select .cse1 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select .cse1 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))) .cse2 .cse3) .cse4 (let ((.cse6 (not (= .cse17 0)))) (or (and (or (not (= .cse5 0)) .cse6) (or (and (or (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select .cse7 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) .cse3) (= (select .cse7 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) .cse8) (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| .cse5) .cse9 (= .cse10 .cse5)) (and .cse0 .cse11 .cse12 .cse9 (or (exists ((v_DerPreprocessor_7 (Array Int Int)) (v_DerPreprocessor_8 (Array Int Int))) (let ((.cse15 (store (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_7) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_8) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_7) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_8))) (let ((.cse13 (select (select .cse15 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (.cse14 (select .cse15 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (and (= .cse13 .cse5) (not (= .cse13 0)) (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| .cse13) (= .cse13 (select v_DerPreprocessor_8 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= (select .cse14 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (= .cse14 v_DerPreprocessor_7))))) (and .cse16 .cse6))))) (or (not .cse0) .cse8) (or (and .cse0 .cse12) (= (select .cse1 |c_ULTIMATE.start_sll_circular_append_~head#1.offset|) .cse17)) (= .cse17 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (and .cse4 .cse0 .cse11 .cse12 (or (and (or (exists ((v_DerPreprocessor_10 (Array Int Int))) (let ((.cse18 (select v_DerPreprocessor_10 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))) (and (= .cse18 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) (exists ((v_DerPreprocessor_9 (Array Int Int))) (let ((.cse20 (store (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_9) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_10) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_9) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_10))) (let ((.cse19 (select .cse20 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (and (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select .cse19 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= .cse19 v_DerPreprocessor_9) (= .cse18 (select (select .cse20 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)))))) (not (= .cse18 0))))) (exists ((v_DerPreprocessor_10 (Array Int Int))) (let ((.cse21 (select v_DerPreprocessor_10 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))) (and (= .cse21 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) (not (= .cse21 0)) (exists ((v_DerPreprocessor_9 (Array Int Int))) (let ((.cse22 (select (store (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_9) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_10) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_9) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_10) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (and (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select .cse22 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= .cse22 v_DerPreprocessor_9)))))))) .cse16) (and (exists ((v_prenex_3 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse25 (store (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_prenex_3) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_prenex_4) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_prenex_3) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_prenex_4))) (let ((.cse23 (select (select .cse25 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (.cse24 (select .cse25 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (and (= .cse23 .cse5) (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| .cse23) (= .cse24 v_prenex_3) (= .cse23 (select v_prenex_4 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (not (= .cse23 0)) (= (select .cse24 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))))) (or (exists ((v_DerPreprocessor_10 (Array Int Int))) (let ((.cse26 (select v_DerPreprocessor_10 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))) (and (= .cse26 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) (exists ((v_DerPreprocessor_9 (Array Int Int))) (let ((.cse28 (store (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_9) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_10) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_9) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_10))) (let ((.cse27 (select .cse28 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (and (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select .cse27 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= .cse27 v_DerPreprocessor_9) (= .cse26 (select (select .cse28 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))))))))) (exists ((v_DerPreprocessor_10 (Array Int Int))) (and (= (select v_DerPreprocessor_10 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) (exists ((v_DerPreprocessor_9 (Array Int Int))) (let ((.cse29 (select (store (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_9) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_10) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_9) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_10) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (and (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select .cse29 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= .cse29 v_DerPreprocessor_9))))))))) .cse2 .cse9))))) (<= |c_ULTIMATE.start_sll_circular_create_~data#1| 1) (< |c_ULTIMATE.start_sll_circular_create_~last~0#1.base| |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_sll_circular_append_#in~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (<= |c_ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (< |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_sll_circular_append_#in~head#1.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) (<= 0 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) (<= |c_ULTIMATE.start_sll_circular_create_#in~data#1| 1) (not (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.base| 0)) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 2 |c_ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 1 |c_ULTIMATE.start_sll_circular_create_#in~data#1|) (= |c_ULTIMATE.start_sll_circular_create_#res#1.offset| |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |c_#NULL.offset| 0) (= |c_ULTIMATE.start_sll_circular_append_#in~data#1| |c_ULTIMATE.start_sll_circular_append_~data#1|) (<= 1 |c_ULTIMATE.start_sll_circular_create_~len#1|) (<= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= 1 |c_ULTIMATE.start_sll_circular_create_~data#1|) (<= 1 |c_ULTIMATE.start_sll_circular_append_~data#1|) (<= 1 |c_ULTIMATE.start_sll_circular_append_#in~data#1|) (= (+ |c_ULTIMATE.start_sll_circular_create_~len#1| 1) |c_ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |c_ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |c_ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (= |c_ULTIMATE.start_main_~ptr~0#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (= |c_ULTIMATE.start_main_~count~0#1| 0) (<= 0 |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (not (= 2 |c_ULTIMATE.start_main_~#s~0#1.base|)) (= |c_#NULL.base| 0) (= |c_ULTIMATE.start_main_~data~0#1| 1) (= |c_ULTIMATE.start_main_~data~0#1| |c_ULTIMATE.start_sll_circular_create_#in~data#1|) (= |c_ULTIMATE.start_main_~len~0#1| |c_ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |c_ULTIMATE.start_sll_circular_append_#in~data#1| 1) (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) (<= 0 |c_ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (or (not (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) .cse3) (= |c_ULTIMATE.start_main_~ptr~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (<= |c_ULTIMATE.start_sll_circular_append_~data#1| 1) (= |c_ULTIMATE.start_sll_circular_append_#in~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (or (and (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| 4) .cse33) (= (select (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 4) |c_ULTIMATE.start_sll_circular_append_~data#1|)) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.base| |c_ULTIMATE.start_sll_circular_create_#res#1.base|) (<= 0 |c_ULTIMATE.start_main_~#s~0#1.base|) (not (= 0 |c_ULTIMATE.start_main_~#s~0#1.base|)) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|) (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |c_ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |c_ULTIMATE.start_sll_circular_create_#in~data#1| |c_ULTIMATE.start_sll_circular_create_~data#1|) (not (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| 0)) (<= 0 |c_ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= (select |c_#valid| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 1) (= (select |c_#length| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 8) (not (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| 0)) (< |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_main_~data~0#1| |c_ULTIMATE.start_sll_circular_append_#in~data#1|) (<= |c_ULTIMATE.start_sll_circular_create_~len#1| 1) (= |c_ULTIMATE.start_main_~len~0#1| 2)))) is different from true [2022-11-16 15:57:46,435 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '721#(and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#s~0#1.base|) (< |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~head#1.base| |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) |ULTIMATE.start_main_~data~0#1|)) (= (select |#valid| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 1) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) (< |ULTIMATE.start_sll_circular_create_~last~0#1.base| |#StackHeapBarrier|) (not (= |ULTIMATE.start_sll_circular_create_~last~0#1.base| 0)) (= (+ |ULTIMATE.start_sll_circular_create_~len#1| 1) |ULTIMATE.start_sll_circular_create_#in~len#1|) (= |ULTIMATE.start_main_~count~0#1| 0) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_create_#in~data#1| |ULTIMATE.start_sll_circular_create_~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (not (= 2 |ULTIMATE.start_main_~#s~0#1.base|)) (= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| |ULTIMATE.start_main_~#s~0#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) 0))) (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_sll_circular_create_#in~len#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= |ULTIMATE.start_sll_circular_append_#in~data#1| |ULTIMATE.start_main_~data~0#1|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (not (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| 0)) (= |#NULL.offset| 0) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (not (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| 0)) (or (= |ULTIMATE.start_sll_circular_append_~data#1| (select (select |#memory_int| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 4)) (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| 4))) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |ULTIMATE.start_sll_circular_append_#in~data#1| |ULTIMATE.start_sll_circular_append_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_append_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (= 8 (select |#length| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (< |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| |#StackHeapBarrier|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-16 15:57:46,436 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:57:46,436 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:57:46,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 38 [2022-11-16 15:57:46,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908062560] [2022-11-16 15:57:46,436 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:57:46,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-16 15:57:46,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:57:46,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-16 15:57:46,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=3201, Unknown=30, NotChecked=468, Total=3906 [2022-11-16 15:57:46,439 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 38 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 15:57:48,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:57:48,223 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2022-11-16 15:57:48,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 15:57:48,223 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 26 [2022-11-16 15:57:48,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:57:48,224 INFO L225 Difference]: With dead ends: 67 [2022-11-16 15:57:48,224 INFO L226 Difference]: Without dead ends: 59 [2022-11-16 15:57:48,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1489 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=340, Invalid=5196, Unknown=30, NotChecked=596, Total=6162 [2022-11-16 15:57:48,227 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 59 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 15:57:48,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 414 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 619 Invalid, 0 Unknown, 66 Unchecked, 0.6s Time] [2022-11-16 15:57:48,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-16 15:57:48,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 41. [2022-11-16 15:57:48,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.2) internal successors, (36), 31 states have internal predecessors, (36), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 15:57:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2022-11-16 15:57:48,244 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 26 [2022-11-16 15:57:48,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:57:48,244 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2022-11-16 15:57:48,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 15:57:48,245 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2022-11-16 15:57:48,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 15:57:48,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:57:48,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:57:48,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 15:57:48,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-16 15:57:48,451 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:57:48,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:57:48,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1387928183, now seen corresponding path program 1 times [2022-11-16 15:57:48,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:57:48,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675936133] [2022-11-16 15:57:48,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:48,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:57:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:57:51,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:57:51,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675936133] [2022-11-16 15:57:51,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675936133] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:57:51,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62827538] [2022-11-16 15:57:51,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:51,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:57:51,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:57:51,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:57:51,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 15:57:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:51,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 170 conjunts are in the unsatisfiable core [2022-11-16 15:57:51,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:57:51,821 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 [2022-11-16 15:57:52,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:52,160 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 16 treesize of output 17 [2022-11-16 15:57:52,168 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 [2022-11-16 15:57:52,278 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:57:52,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-16 15:57:52,395 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 19 treesize of output 11 [2022-11-16 15:57:52,431 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 19 treesize of output 18 [2022-11-16 15:57:52,562 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 15:57:52,562 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 70 treesize of output 51 [2022-11-16 15:57:52,571 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 26 treesize of output 28 [2022-11-16 15:57:52,717 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:52,717 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 69 treesize of output 32 [2022-11-16 15:57:52,721 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 [2022-11-16 15:57:52,733 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 [2022-11-16 15:57:52,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-16 15:57:52,850 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 11 treesize of output 14 [2022-11-16 15:57:52,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:52,984 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-16 15:57:52,984 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 65 [2022-11-16 15:57:53,004 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-16 15:57:53,005 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 [2022-11-16 15:57:53,020 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 [2022-11-16 15:57:53,048 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-16 15:57:53,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-16 15:57:53,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:53,070 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 [2022-11-16 15:57:53,938 INFO L321 Elim1Store]: treesize reduction 103, result has 20.2 percent of original size [2022-11-16 15:57:53,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 186 treesize of output 104 [2022-11-16 15:57:53,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:53,984 INFO L321 Elim1Store]: treesize reduction 58, result has 21.6 percent of original size [2022-11-16 15:57:53,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 177 treesize of output 133 [2022-11-16 15:57:53,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:53,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2022-11-16 15:57:54,009 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 22 treesize of output 34 [2022-11-16 15:57:54,032 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-16 15:57:54,032 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 38 treesize of output 36 [2022-11-16 15:57:54,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:54,046 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 15:57:54,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 38 [2022-11-16 15:57:54,492 INFO L321 Elim1Store]: treesize reduction 8, result has 91.8 percent of original size [2022-11-16 15:57:54,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 232 treesize of output 193 [2022-11-16 15:57:54,546 INFO L321 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2022-11-16 15:57:54,546 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 107 treesize of output 111 [2022-11-16 15:57:55,356 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 [2022-11-16 15:57:55,416 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:57:55,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:57:55,555 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_sll_circular_append_~last~1#1.offset| Int) (v_ArrVal_660 (Array Int Int)) (v_ArrVal_659 Int) (v_ArrVal_663 (Array Int Int)) (v_ArrVal_665 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_ArrVal_665))) (store .cse0 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (store (select .cse0 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| v_ArrVal_659))) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_660) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_663) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2022-11-16 15:57:55,591 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| Int) (v_ArrVal_659 Int) (v_ArrVal_660 (Array Int Int)) (v_ArrVal_663 (Array Int Int)) (v_ArrVal_665 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_int| .cse1 v_ArrVal_665))) (store .cse0 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (store (select .cse0 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| v_ArrVal_659))) (select (select (store (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_660) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_663) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) is different from false [2022-11-16 15:57:55,613 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| Int) (v_ArrVal_659 Int) (v_ArrVal_660 (Array Int Int)) (v_ArrVal_663 (Array Int Int)) (v_ArrVal_665 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse1 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (select (select (let ((.cse0 (store |c_#memory_int| .cse1 v_ArrVal_665))) (store .cse0 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (store (select .cse0 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| v_ArrVal_659))) (select (select (store (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_660) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ 4 (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_663) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) is different from false [2022-11-16 15:57:56,258 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:57:56,259 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 203 treesize of output 204 [2022-11-16 15:57:56,289 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_678 (Array Int Int)) (v_arrayElimArr_10 (Array Int Int)) (|v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24| Int) (|v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| Int) (v_ArrVal_680 (Array Int Int)) (v_ArrVal_659 Int) (v_ArrVal_660 (Array Int Int)) (v_ArrVal_663 (Array Int Int)) (v_ArrVal_665 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24|) 0)) (not (= (select v_arrayElimArr_10 4) |c_ULTIMATE.start_sll_circular_append_~data#1|)) (not (< |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24| |c_#StackHeapBarrier|)) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse2 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24| v_ArrVal_680)) (.cse3 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24| v_ArrVal_678))) (let ((.cse1 (select (select .cse2 (select (select .cse2 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (select (select .cse3 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (select (select (let ((.cse0 (store (store |c_#memory_int| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24| v_arrayElimArr_10) .cse1 v_ArrVal_665))) (store .cse0 |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24| (store (select .cse0 |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24|) 0 v_ArrVal_659))) (select (select (store (store .cse2 .cse1 (store (select .cse2 .cse1) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24|)) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24| v_ArrVal_660) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store .cse3 .cse1 (store (select .cse3 .cse1) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| 0)) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_24| v_ArrVal_663) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))))) is different from false [2022-11-16 15:57:56,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62827538] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:57:56,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [436382985] [2022-11-16 15:57:56,294 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-16 15:57:56,294 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:57:56,295 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:57:56,295 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:57:56,295 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:57:56,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:56,328 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 15:57:56,328 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 [2022-11-16 15:57:56,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:56,350 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:57:56,351 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 [2022-11-16 15:57:56,384 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 [2022-11-16 15:57:56,389 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 [2022-11-16 15:57:56,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:56,400 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 [2022-11-16 15:57:56,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:56,406 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 22 treesize of output 7 [2022-11-16 15:57:56,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:56,413 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 22 treesize of output 7 [2022-11-16 15:57:56,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:56,430 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 [2022-11-16 15:57:56,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:56,443 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 [2022-11-16 15:57:56,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:56,479 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 [2022-11-16 15:57:56,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:56,488 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 [2022-11-16 15:57:56,565 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 [2022-11-16 15:57:56,573 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 [2022-11-16 15:57:56,582 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 [2022-11-16 15:57:56,591 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 7 treesize of output 3 [2022-11-16 15:57:56,598 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 [2022-11-16 15:57:56,632 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 [2022-11-16 15:57:56,639 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 [2022-11-16 15:57:56,648 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 [2022-11-16 15:57:56,658 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 [2022-11-16 15:57:56,667 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 [2022-11-16 15:57:56,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:56,699 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 23 treesize of output 11 [2022-11-16 15:57:56,707 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 19 treesize of output 11 [2022-11-16 15:57:56,720 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 19 treesize of output 11 [2022-11-16 15:57:56,957 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:56,959 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:56,961 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:56,963 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:56,965 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:56,975 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 [2022-11-16 15:57:56,985 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 [2022-11-16 15:57:56,995 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 [2022-11-16 15:57:57,005 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 [2022-11-16 15:57:57,013 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 [2022-11-16 15:57:57,212 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 [2022-11-16 15:57:57,220 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 [2022-11-16 15:57:57,228 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 [2022-11-16 15:57:57,238 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 [2022-11-16 15:57:57,247 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 [2022-11-16 15:57:57,258 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,260 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,262 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,264 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,266 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,302 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 19 treesize of output 11 [2022-11-16 15:57:57,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:57,325 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 23 treesize of output 11 [2022-11-16 15:57:57,337 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 19 treesize of output 11 [2022-11-16 15:57:57,653 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,655 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,656 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,658 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,660 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,670 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 [2022-11-16 15:57:57,678 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 [2022-11-16 15:57:57,686 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 [2022-11-16 15:57:57,694 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 [2022-11-16 15:57:57,702 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 [2022-11-16 15:57:57,883 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 [2022-11-16 15:57:57,891 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 [2022-11-16 15:57:57,899 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 [2022-11-16 15:57:57,907 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 [2022-11-16 15:57:57,918 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 [2022-11-16 15:57:57,930 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,932 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,933 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,935 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:57,936 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:58,010 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:57:58,011 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 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-16 15:57:58,036 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:57:58,036 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 19 treesize of output 18 [2022-11-16 15:57:58,050 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 23 treesize of output 11 [2022-11-16 15:57:58,118 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 [2022-11-16 15:57:58,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:58,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:58,137 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:58,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:57:58,149 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 [2022-11-16 15:57:58,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:58,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:58,174 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:58,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:57:58,186 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 [2022-11-16 15:57:58,246 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 [2022-11-16 15:57:58,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:58,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:58,265 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:58,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:57:58,276 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 [2022-11-16 15:57:58,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:58,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:58,297 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:57:58,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:57:58,312 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 [2022-11-16 15:57:58,507 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-16 15:57:58,507 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-16 15:57:58,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:58,603 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:57:58,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:57:58,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:58,672 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 15:57:58,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-11-16 15:57:58,684 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:58,694 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 [2022-11-16 15:57:58,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:58,804 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:57:58,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:57:58,874 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:57:58,887 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 15:57:58,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-11-16 15:57:58,891 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:57:58,902 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 [2022-11-16 15:57:59,274 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 11 for LOIs [2022-11-16 15:57:59,279 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 [2022-11-16 15:57:59,283 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 [2022-11-16 15:57:59,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:59,292 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 22 treesize of output 7 [2022-11-16 15:57:59,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:59,298 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 22 treesize of output 7 [2022-11-16 15:57:59,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:57:59,308 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 [2022-11-16 15:57:59,310 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:58:08,125 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1089#(and (<= |ULTIMATE.start_sll_circular_append_~data#1| 1) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 1 |ULTIMATE.start_sll_circular_append_#in~data#1|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) |ULTIMATE.start_main_~data~0#1|)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (or (and (or (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (or (and (= |ULTIMATE.start_sll_circular_append_~head#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (exists ((v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_16) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_17) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_16) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_17) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) v_DerPreprocessor_16) (= (select v_DerPreprocessor_17 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= (select (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_16) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_17) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_16) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_17) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)))) (exists ((v_DerPreprocessor_17 (Array Int Int))) (and (exists ((v_DerPreprocessor_16 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_16) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_17) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_16) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_17) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) v_DerPreprocessor_16) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_16) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_17) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_16) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_17) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= (select (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_16) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_17) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_16) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_17) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|))) (= (select v_DerPreprocessor_17 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|))))) (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|))) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_append_~data#1|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |ULTIMATE.start_main_~count~0#1| 0) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.base|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 1) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (and (or (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (or (exists ((v_DerPreprocessor_15 (Array Int Int))) (and (exists ((v_DerPreprocessor_14 (Array Int Int))) (and (= v_DerPreprocessor_14 (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_15) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_15) |ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_15) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_15) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_15) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_15) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select v_DerPreprocessor_15 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)))) (and (= |ULTIMATE.start_sll_circular_append_~head#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (exists ((v_DerPreprocessor_15 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (and (= v_DerPreprocessor_14 (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_15) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_15) |ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (= (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_15) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_15) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select v_DerPreprocessor_15 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)))))))) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-16 15:58:08,126 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:58:08,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:58:08,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 42 [2022-11-16 15:58:08,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788542523] [2022-11-16 15:58:08,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:58:08,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-16 15:58:08,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:58:08,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-16 15:58:08,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=3671, Unknown=48, NotChecked=500, Total=4422 [2022-11-16 15:58:08,129 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 42 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 15:58:10,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:58:10,992 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2022-11-16 15:58:10,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 15:58:10,992 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 28 [2022-11-16 15:58:10,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:58:10,993 INFO L225 Difference]: With dead ends: 56 [2022-11-16 15:58:10,993 INFO L226 Difference]: Without dead ends: 54 [2022-11-16 15:58:10,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1136 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=300, Invalid=5364, Unknown=52, NotChecked=604, Total=6320 [2022-11-16 15:58:10,995 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 26 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 15:58:10,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 251 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 543 Invalid, 0 Unknown, 73 Unchecked, 0.6s Time] [2022-11-16 15:58:10,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-16 15:58:11,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2022-11-16 15:58:11,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.175) internal successors, (47), 40 states have internal predecessors, (47), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 15:58:11,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 61 transitions. [2022-11-16 15:58:11,014 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 61 transitions. Word has length 28 [2022-11-16 15:58:11,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:58:11,014 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 61 transitions. [2022-11-16 15:58:11,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 15:58:11,015 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2022-11-16 15:58:11,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-16 15:58:11,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:58:11,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:58:11,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 15:58:11,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:58:11,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:58:11,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:58:11,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1933907603, now seen corresponding path program 1 times [2022-11-16 15:58:11,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:58:11,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879696896] [2022-11-16 15:58:11,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:58:11,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:58:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:58:13,537 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 15:58:13,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:58:13,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879696896] [2022-11-16 15:58:13,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879696896] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:58:13,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488758182] [2022-11-16 15:58:13,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:58:13,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:58:13,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:58:13,543 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:58:13,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 15:58:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:58:13,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 111 conjunts are in the unsatisfiable core [2022-11-16 15:58:13,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:58:13,746 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 5 [2022-11-16 15:58:13,806 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 [2022-11-16 15:58:13,907 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:58:13,908 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 17 treesize of output 21 [2022-11-16 15:58:14,039 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 11 treesize of output 7 [2022-11-16 15:58:14,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:14,166 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:58:14,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-16 15:58:14,264 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 11 treesize of output 7 [2022-11-16 15:58:14,376 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 15:58:14,376 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 59 [2022-11-16 15:58:14,495 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-16 15:58:14,496 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 70 treesize of output 25 [2022-11-16 15:58:14,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:14,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 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 [2022-11-16 15:58:14,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:14,635 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-16 15:58:14,635 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 68 [2022-11-16 15:58:14,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:14,644 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 60 treesize of output 58 [2022-11-16 15:58:14,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:14,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:14,669 INFO L321 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-11-16 15:58:14,670 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 2 case distinctions, treesize of input 37 treesize of output 37 [2022-11-16 15:58:15,163 INFO L321 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2022-11-16 15:58:15,163 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 146 treesize of output 73 [2022-11-16 15:58:15,198 INFO L321 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-11-16 15:58:15,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 199 treesize of output 124 [2022-11-16 15:58:15,227 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 15:58:15,227 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 1 case distinctions, treesize of input 168 treesize of output 133 [2022-11-16 15:58:15,240 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 15:58:15,241 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 136 treesize of output 129 [2022-11-16 15:58:15,354 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 121 treesize of output 93 [2022-11-16 15:58:15,484 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-11-16 15:58:15,485 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 39 [2022-11-16 15:58:15,525 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:58:15,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:58:15,632 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_sll_circular_append_~last~1#1.offset| Int) (v_ArrVal_829 (Array Int Int)) (v_ArrVal_837 Int) (v_ArrVal_830 (Array Int Int))) (not (let ((.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_830))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse0 (select (select .cse1 .cse0) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset| v_ArrVal_837)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_829) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) is different from false [2022-11-16 15:58:15,654 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| Int) (v_ArrVal_829 (Array Int Int)) (v_ArrVal_837 Int) (v_ArrVal_830 (Array Int Int))) (not (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse2 (store (select |c_#memory_$Pointer$.base| .cse2) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_830))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse0 (select (select .cse1 .cse0) (select (select (store (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| v_ArrVal_837)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_829) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) is different from false [2022-11-16 15:58:15,675 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| Int) (v_ArrVal_829 (Array Int Int)) (v_ArrVal_837 Int) (v_ArrVal_830 (Array Int Int))) (not (let ((.cse2 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse2 (store (select |c_#memory_$Pointer$.base| .cse2) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_830))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse0 (select (select .cse1 .cse0) (select (select (store (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| v_ArrVal_837)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_829) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) is different from false [2022-11-16 15:58:15,716 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| Int) (v_ArrVal_829 (Array Int Int)) (v_ArrVal_837 Int) (v_ArrVal_830 (Array Int Int))) (not (let ((.cse2 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse2 (store (select |c_#memory_$Pointer$.base| .cse2) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base|)) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_830))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse0 (select (select .cse1 .cse0) (select (select (store (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| v_ArrVal_837)) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_829) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) is different from false [2022-11-16 15:58:15,798 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_843 (Array Int Int)) (|v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28| Int) (v_ArrVal_844 (Array Int Int)) (|v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| Int) (v_ArrVal_829 (Array Int Int)) (v_ArrVal_837 Int) (v_ArrVal_830 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28|) 0)) (not (< |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28| |c_#StackHeapBarrier|)) (not (let ((.cse4 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28| v_ArrVal_843)) (.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28| v_ArrVal_844))) (let ((.cse3 (select (select .cse4 (select (select .cse4 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (select (select .cse2 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (let ((.cse1 (store (store .cse4 .cse3 (store (select .cse4 .cse3) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28|)) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28| v_ArrVal_830))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse0 (select (select .cse1 .cse0) (select (select (store (store .cse2 .cse3 (store (select .cse2 .cse3) |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_18| v_ArrVal_837)) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28| v_ArrVal_829) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))))) is different from false [2022-11-16 15:58:15,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488758182] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:58:15,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [979409076] [2022-11-16 15:58:15,803 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-11-16 15:58:15,803 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:58:15,803 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:58:15,803 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:58:15,803 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:58:15,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:15,839 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:58:15,840 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 [2022-11-16 15:58:15,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:15,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 15:58:15,873 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 [2022-11-16 15:58:15,877 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 [2022-11-16 15:58:15,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:15,893 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 [2022-11-16 15:58:15,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:15,898 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 22 treesize of output 7 [2022-11-16 15:58:15,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:15,905 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 22 treesize of output 7 [2022-11-16 15:58:15,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:15,925 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 [2022-11-16 15:58:15,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:15,934 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 [2022-11-16 15:58:15,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:15,972 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 [2022-11-16 15:58:15,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:15,981 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 [2022-11-16 15:58:16,040 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 [2022-11-16 15:58:16,048 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 [2022-11-16 15:58:16,087 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 [2022-11-16 15:58:16,099 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 [2022-11-16 15:58:16,107 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 [2022-11-16 15:58:16,138 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 [2022-11-16 15:58:16,149 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 [2022-11-16 15:58:16,156 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 [2022-11-16 15:58:16,165 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 [2022-11-16 15:58:16,172 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 [2022-11-16 15:58:16,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:16,207 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 23 treesize of output 11 [2022-11-16 15:58:16,216 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 19 treesize of output 11 [2022-11-16 15:58:16,227 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 19 treesize of output 11 [2022-11-16 15:58:16,447 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 [2022-11-16 15:58:16,456 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 [2022-11-16 15:58:16,464 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 [2022-11-16 15:58:16,475 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 [2022-11-16 15:58:16,483 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 [2022-11-16 15:58:16,499 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:16,500 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:16,502 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:16,503 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:16,505 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:16,620 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:16,621 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:16,622 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:16,624 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:16,626 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:16,636 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 [2022-11-16 15:58:16,645 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 [2022-11-16 15:58:16,665 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 [2022-11-16 15:58:16,675 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 [2022-11-16 15:58:16,683 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 [2022-11-16 15:58:16,720 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 19 treesize of output 11 [2022-11-16 15:58:16,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:16,733 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 23 treesize of output 11 [2022-11-16 15:58:16,741 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 19 treesize of output 11 [2022-11-16 15:58:17,049 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 [2022-11-16 15:58:17,057 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 [2022-11-16 15:58:17,066 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 [2022-11-16 15:58:17,074 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 [2022-11-16 15:58:17,083 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 [2022-11-16 15:58:17,096 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:17,098 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:17,100 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:17,101 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:17,103 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:17,291 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 [2022-11-16 15:58:17,299 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 [2022-11-16 15:58:17,308 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 [2022-11-16 15:58:17,318 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 [2022-11-16 15:58:17,326 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 [2022-11-16 15:58:17,339 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:17,341 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:17,342 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:17,344 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:17,345 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:17,403 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:58:17,404 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 19 treesize of output 18 [2022-11-16 15:58:17,417 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 23 treesize of output 11 [2022-11-16 15:58:17,454 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:58:17,455 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 19 treesize of output 18 [2022-11-16 15:58:17,526 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 [2022-11-16 15:58:17,535 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 [2022-11-16 15:58:17,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:17,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:17,557 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:17,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:58:17,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:17,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:17,580 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:17,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:58:17,591 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 [2022-11-16 15:58:17,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:17,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:17,663 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:17,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:58:17,675 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 [2022-11-16 15:58:17,686 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 [2022-11-16 15:58:17,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:17,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:17,711 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:17,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:58:17,722 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 [2022-11-16 15:58:18,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:18,124 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:58:18,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:58:18,204 INFO L321 Elim1Store]: treesize reduction 39, result has 48.7 percent of original size [2022-11-16 15:58:18,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 67 [2022-11-16 15:58:18,222 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 [2022-11-16 15:58:18,245 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 [2022-11-16 15:58:18,270 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:58:18,271 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 16 treesize of output 20 [2022-11-16 15:58:18,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:18,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:18,293 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 59 [2022-11-16 15:58:18,327 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:18,328 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 21 treesize of output 17 [2022-11-16 15:58:18,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:18,473 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:58:18,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:58:18,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:18,561 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 15:58:18,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-11-16 15:58:18,573 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:58:18,583 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 [2022-11-16 15:58:18,626 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-16 15:58:18,626 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-16 15:58:19,268 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2022-11-16 15:58:19,274 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 [2022-11-16 15:58:19,278 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 [2022-11-16 15:58:19,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:19,292 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 [2022-11-16 15:58:19,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:19,299 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 22 treesize of output 7 [2022-11-16 15:58:19,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:19,305 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 22 treesize of output 7 [2022-11-16 15:58:19,306 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:58:29,760 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1460#(and (<= |ULTIMATE.start_sll_circular_append_~data#1| 1) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) |ULTIMATE.start_main_~ptr~0#1.base|) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 1 |ULTIMATE.start_sll_circular_append_#in~data#1|) (= |ULTIMATE.start_main_~count~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_append_~data#1|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.base|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (and (or (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (or (= |ULTIMATE.start_sll_circular_append_~head#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (exists ((v_DerPreprocessor_23 (Array Int Int))) (and (= (select v_DerPreprocessor_23 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (exists ((v_DerPreprocessor_22 (Array Int Int))) (and (= v_DerPreprocessor_22 (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_22) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_23) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_22) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_23) |ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (= (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_22) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_23) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_22) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_23) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_22) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_23) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_22) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_23) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)))))))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (exists ((v_DerPreprocessor_20 (Array Int Int)) (v_DerPreprocessor_21 (Array Int Int))) (and (= v_DerPreprocessor_20 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_20) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_21) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_20) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_21) |ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (= (select (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_20) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_21) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_20) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_21) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|) (select v_DerPreprocessor_21 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_20) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_21) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_20) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_21) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)))) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (and (or (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 1) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) 4)) |ULTIMATE.start_main_~data~0#1|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-16 15:58:29,760 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:58:29,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:58:29,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 39 [2022-11-16 15:58:29,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165317768] [2022-11-16 15:58:29,761 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:58:29,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-16 15:58:29,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:58:29,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-16 15:58:29,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=3563, Unknown=22, NotChecked=620, Total=4422 [2022-11-16 15:58:29,763 INFO L87 Difference]: Start difference. First operand 51 states and 61 transitions. Second operand has 40 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 15:58:30,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:58:30,889 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2022-11-16 15:58:30,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-16 15:58:30,890 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 30 [2022-11-16 15:58:30,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:58:30,893 INFO L225 Difference]: With dead ends: 71 [2022-11-16 15:58:30,893 INFO L226 Difference]: Without dead ends: 68 [2022-11-16 15:58:30,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1255 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=292, Invalid=4676, Unknown=22, NotChecked=710, Total=5700 [2022-11-16 15:58:30,895 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 49 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 99 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 15:58:30,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 248 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 350 Invalid, 0 Unknown, 99 Unchecked, 0.4s Time] [2022-11-16 15:58:30,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-16 15:58:30,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2022-11-16 15:58:30,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 47 states have internal predecessors, (56), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 15:58:30,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2022-11-16 15:58:30,937 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 30 [2022-11-16 15:58:30,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:58:30,940 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2022-11-16 15:58:30,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 15:58:30,940 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2022-11-16 15:58:30,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-16 15:58:30,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:58:30,949 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:58:30,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-16 15:58:31,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:58:31,154 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:58:31,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:58:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1917355378, now seen corresponding path program 2 times [2022-11-16 15:58:31,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:58:31,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191931352] [2022-11-16 15:58:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:58:31,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:58:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:58:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:58:32,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:58:32,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191931352] [2022-11-16 15:58:32,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191931352] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:58:32,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071038197] [2022-11-16 15:58:32,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:58:32,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:58:32,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:58:32,475 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:58:32,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 15:58:32,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 15:58:32,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:58:32,882 WARN L261 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 198 conjunts are in the unsatisfiable core [2022-11-16 15:58:32,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:58:32,899 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 5 [2022-11-16 15:58:32,941 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 [2022-11-16 15:58:33,023 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 15:58:33,023 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 12 treesize of output 14 [2022-11-16 15:58:33,165 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:33,165 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 11 treesize of output 7 [2022-11-16 15:58:33,211 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 [2022-11-16 15:58:33,302 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-16 15:58:33,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 15:58:33,394 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 11 treesize of output 7 [2022-11-16 15:58:33,419 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 11 treesize of output 7 [2022-11-16 15:58:33,433 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 19 treesize of output 18 [2022-11-16 15:58:33,562 INFO L321 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2022-11-16 15:58:33,563 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 118 treesize of output 72 [2022-11-16 15:58:33,569 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 74 treesize of output 52 [2022-11-16 15:58:33,585 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 26 treesize of output 28 [2022-11-16 15:58:33,733 INFO L321 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2022-11-16 15:58:33,733 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 6 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 60 [2022-11-16 15:58:33,745 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 15:58:33,746 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 26 treesize of output 13 [2022-11-16 15:58:33,755 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:33,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 10 [2022-11-16 15:58:33,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:33,952 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-16 15:58:33,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 117 treesize of output 99 [2022-11-16 15:58:33,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:33,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:33,979 INFO L321 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2022-11-16 15:58:33,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 15:58:33,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:33,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:33,994 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-16 15:58:33,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 71 [2022-11-16 15:58:34,012 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 [2022-11-16 15:58:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:58:34,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:58:37,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071038197] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:58:37,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1570701730] [2022-11-16 15:58:37,234 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-16 15:58:37,235 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:58:37,235 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:58:37,235 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:58:37,235 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:58:37,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,276 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:58:37,276 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 [2022-11-16 15:58:37,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 15:58:37,305 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 [2022-11-16 15:58:37,308 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 [2022-11-16 15:58:37,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,316 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 22 treesize of output 7 [2022-11-16 15:58:37,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,324 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 [2022-11-16 15:58:37,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,330 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 22 treesize of output 7 [2022-11-16 15:58:37,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,349 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 [2022-11-16 15:58:37,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,358 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 [2022-11-16 15:58:37,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,391 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 [2022-11-16 15:58:37,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,402 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 [2022-11-16 15:58:37,452 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 [2022-11-16 15:58:37,459 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 [2022-11-16 15:58:37,467 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 [2022-11-16 15:58:37,475 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 [2022-11-16 15:58:37,489 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 [2022-11-16 15:58:37,525 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 [2022-11-16 15:58:37,534 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 [2022-11-16 15:58:37,542 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 [2022-11-16 15:58:37,550 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 [2022-11-16 15:58:37,557 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 [2022-11-16 15:58:37,592 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 19 treesize of output 11 [2022-11-16 15:58:37,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,604 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 23 treesize of output 11 [2022-11-16 15:58:37,615 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 19 treesize of output 11 [2022-11-16 15:58:37,674 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 [2022-11-16 15:58:37,683 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 [2022-11-16 15:58:37,691 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 [2022-11-16 15:58:37,699 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 [2022-11-16 15:58:37,712 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 [2022-11-16 15:58:37,744 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 [2022-11-16 15:58:37,752 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 [2022-11-16 15:58:37,760 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 [2022-11-16 15:58:37,769 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 [2022-11-16 15:58:37,780 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 [2022-11-16 15:58:37,818 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 19 treesize of output 11 [2022-11-16 15:58:37,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:37,827 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 23 treesize of output 11 [2022-11-16 15:58:37,838 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 19 treesize of output 11 [2022-11-16 15:58:37,908 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 [2022-11-16 15:58:37,918 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 [2022-11-16 15:58:37,925 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 [2022-11-16 15:58:37,934 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 [2022-11-16 15:58:37,944 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 [2022-11-16 15:58:37,972 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 [2022-11-16 15:58:37,979 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 [2022-11-16 15:58:37,989 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 [2022-11-16 15:58:37,997 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 [2022-11-16 15:58:38,006 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 [2022-11-16 15:58:38,068 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:58:38,068 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 19 treesize of output 18 [2022-11-16 15:58:38,084 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 23 treesize of output 11 [2022-11-16 15:58:38,110 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:58:38,110 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 19 treesize of output 18 [2022-11-16 15:58:38,169 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 [2022-11-16 15:58:38,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:38,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:38,188 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:38,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:58:38,201 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 [2022-11-16 15:58:38,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:38,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:38,221 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:38,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:58:38,232 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 [2022-11-16 15:58:38,291 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 [2022-11-16 15:58:38,303 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 [2022-11-16 15:58:38,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:38,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:38,323 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:38,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:58:38,336 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 [2022-11-16 15:58:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:38,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:38,358 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:58:38,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:58:38,626 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-16 15:58:38,626 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-16 15:58:38,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:38,708 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:58:38,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:58:38,770 INFO L321 Elim1Store]: treesize reduction 39, result has 48.7 percent of original size [2022-11-16 15:58:38,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 67 [2022-11-16 15:58:38,793 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 [2022-11-16 15:58:38,817 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:58:38,817 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 16 treesize of output 20 [2022-11-16 15:58:38,832 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 [2022-11-16 15:58:38,854 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:58:38,854 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 16 treesize of output 20 [2022-11-16 15:58:38,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:38,867 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 21 treesize of output 17 [2022-11-16 15:58:38,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:38,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:38,879 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 59 [2022-11-16 15:58:38,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:39,034 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:58:39,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:58:39,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:39,097 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 15:58:39,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-11-16 15:58:39,109 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 [2022-11-16 15:58:39,471 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 11 for LOIs [2022-11-16 15:58:39,476 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 [2022-11-16 15:58:39,480 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 [2022-11-16 15:58:39,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:39,488 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 22 treesize of output 7 [2022-11-16 15:58:39,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:39,496 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 22 treesize of output 7 [2022-11-16 15:58:39,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:39,507 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 [2022-11-16 15:58:39,509 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:58:47,974 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1858#(and (<= |ULTIMATE.start_sll_circular_append_~data#1| 1) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 1 |ULTIMATE.start_sll_circular_append_#in~data#1|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) |ULTIMATE.start_main_~data~0#1|)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_append_~data#1|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |ULTIMATE.start_main_~count~0#1| 0) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.base|) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (and (or (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (or (exists ((v_DerPreprocessor_31 (Array Int Int))) (and (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select v_DerPreprocessor_31 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (exists ((v_DerPreprocessor_30 (Array Int Int))) (and (= v_DerPreprocessor_30 (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_30) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_31) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_30) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_31) |ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (= (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_30) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_31) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_30) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_31) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_30) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_31) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_30) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_31) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)))))) (= |ULTIMATE.start_sll_circular_append_~head#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)))) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (exists ((v_DerPreprocessor_28 (Array Int Int)) (v_DerPreprocessor_29 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_29) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_29) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) v_DerPreprocessor_28) (= (select (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_29) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_29) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= (select v_DerPreprocessor_29 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_29) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_29) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (and (or (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 1) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-16 15:58:47,974 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:58:47,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:58:47,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2022-11-16 15:58:47,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40145830] [2022-11-16 15:58:47,975 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:58:47,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-16 15:58:47,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:58:47,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-16 15:58:47,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=4258, Unknown=42, NotChecked=0, Total=4556 [2022-11-16 15:58:47,978 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 38 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 15:58:48,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:58:48,732 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2022-11-16 15:58:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 15:58:48,733 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 30 [2022-11-16 15:58:48,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:58:48,734 INFO L225 Difference]: With dead ends: 75 [2022-11-16 15:58:48,734 INFO L226 Difference]: Without dead ends: 65 [2022-11-16 15:58:48,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=289, Invalid=4639, Unknown=42, NotChecked=0, Total=4970 [2022-11-16 15:58:48,736 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 23 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 15:58:48,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 200 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 434 Invalid, 0 Unknown, 27 Unchecked, 0.5s Time] [2022-11-16 15:58:48,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-16 15:58:48,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 58. [2022-11-16 15:58:48,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 47 states have internal predecessors, (55), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 15:58:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2022-11-16 15:58:48,757 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 30 [2022-11-16 15:58:48,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:58:48,757 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2022-11-16 15:58:48,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 15:58:48,757 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2022-11-16 15:58:48,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-16 15:58:48,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:58:48,758 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:58:48,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-16 15:58:48,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:58:48,965 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:58:48,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:58:48,966 INFO L85 PathProgramCache]: Analyzing trace with hash 178447616, now seen corresponding path program 1 times [2022-11-16 15:58:48,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:58:48,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102959786] [2022-11-16 15:58:48,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:58:48,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:58:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:58:52,222 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:58:52,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:58:52,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102959786] [2022-11-16 15:58:52,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102959786] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:58:52,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276973414] [2022-11-16 15:58:52,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:58:52,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:58:52,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:58:52,224 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:58:52,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 15:58:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:58:52,666 WARN L261 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 193 conjunts are in the unsatisfiable core [2022-11-16 15:58:52,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:58:52,689 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 5 [2022-11-16 15:58:52,751 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 [2022-11-16 15:58:52,835 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 [2022-11-16 15:58:52,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:52,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-16 15:58:53,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:53,151 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 11 treesize of output 7 [2022-11-16 15:58:53,154 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 [2022-11-16 15:58:53,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:53,349 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 15:58:53,349 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 22 treesize of output 33 [2022-11-16 15:58:53,367 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 [2022-11-16 15:58:53,507 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 11 treesize of output 7 [2022-11-16 15:58:53,522 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 [2022-11-16 15:58:53,532 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 11 treesize of output 7 [2022-11-16 15:58:53,706 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 15:58:53,706 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 111 treesize of output 74 [2022-11-16 15:58:53,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:53,714 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 43 treesize of output 34 [2022-11-16 15:58:53,732 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 26 treesize of output 28 [2022-11-16 15:58:53,896 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:58:53,896 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 76 treesize of output 39 [2022-11-16 15:58:53,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-16 15:58:53,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:53,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 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 [2022-11-16 15:58:53,914 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 [2022-11-16 15:58:54,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:54,139 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-16 15:58:54,139 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 68 [2022-11-16 15:58:54,159 INFO L321 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2022-11-16 15:58:54,160 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 22 treesize of output 36 [2022-11-16 15:58:54,167 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 [2022-11-16 15:58:54,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:54,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:54,190 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-16 15:58:54,190 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 1 case distinctions, treesize of input 25 treesize of output 38 [2022-11-16 15:58:54,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:54,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:54,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:54,229 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-16 15:58:54,229 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 2 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 15:58:55,393 INFO L321 Elim1Store]: treesize reduction 143, result has 15.4 percent of original size [2022-11-16 15:58:55,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 261 treesize of output 134 [2022-11-16 15:58:55,438 INFO L321 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-11-16 15:58:55,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 355 treesize of output 232 [2022-11-16 15:58:55,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:55,485 INFO L321 Elim1Store]: treesize reduction 112, result has 16.4 percent of original size [2022-11-16 15:58:55,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 284 treesize of output 173 [2022-11-16 15:58:55,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:55,522 INFO L321 Elim1Store]: treesize reduction 74, result has 21.3 percent of original size [2022-11-16 15:58:55,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 275 treesize of output 215 [2022-11-16 15:58:55,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:55,531 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 84 [2022-11-16 15:58:55,536 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 50 treesize of output 52 [2022-11-16 15:58:55,966 INFO L321 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2022-11-16 15:58:55,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 221 treesize of output 97 [2022-11-16 15:58:55,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:58:55,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 22 [2022-11-16 15:58:56,145 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 [2022-11-16 15:58:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:58:56,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:59:00,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276973414] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:59:00,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1010466489] [2022-11-16 15:59:00,151 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-16 15:59:00,151 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:59:00,151 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:59:00,151 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:59:00,151 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:59:00,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,190 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 15:59:00,190 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 [2022-11-16 15:59:00,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,213 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:59:00,213 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 [2022-11-16 15:59:00,234 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 [2022-11-16 15:59:00,238 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 [2022-11-16 15:59:00,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,249 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 [2022-11-16 15:59:00,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,255 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 22 treesize of output 7 [2022-11-16 15:59:00,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,260 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 22 treesize of output 7 [2022-11-16 15:59:00,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,278 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 [2022-11-16 15:59:00,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,289 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 [2022-11-16 15:59:00,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,329 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 [2022-11-16 15:59:00,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,338 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 [2022-11-16 15:59:00,389 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 [2022-11-16 15:59:00,397 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 [2022-11-16 15:59:00,405 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 [2022-11-16 15:59:00,415 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 [2022-11-16 15:59:00,426 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 [2022-11-16 15:59:00,457 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 [2022-11-16 15:59:00,466 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 [2022-11-16 15:59:00,475 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 [2022-11-16 15:59:00,483 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 [2022-11-16 15:59:00,492 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 [2022-11-16 15:59:00,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:00,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,545 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 205 [2022-11-16 15:59:00,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:00,574 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 207 [2022-11-16 15:59:00,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:00,588 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 114 [2022-11-16 15:59:00,666 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 [2022-11-16 15:59:00,677 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 [2022-11-16 15:59:00,685 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 [2022-11-16 15:59:00,697 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 [2022-11-16 15:59:00,705 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 [2022-11-16 15:59:00,740 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 [2022-11-16 15:59:00,749 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 [2022-11-16 15:59:00,758 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 [2022-11-16 15:59:00,767 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 [2022-11-16 15:59:00,775 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 [2022-11-16 15:59:00,818 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 19 treesize of output 11 [2022-11-16 15:59:00,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:00,828 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 23 treesize of output 11 [2022-11-16 15:59:00,837 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 19 treesize of output 11 [2022-11-16 15:59:00,903 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 [2022-11-16 15:59:00,912 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 [2022-11-16 15:59:00,923 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 [2022-11-16 15:59:00,934 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 [2022-11-16 15:59:00,943 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 [2022-11-16 15:59:00,979 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 [2022-11-16 15:59:00,989 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 [2022-11-16 15:59:01,001 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 [2022-11-16 15:59:01,010 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 [2022-11-16 15:59:01,018 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 [2022-11-16 15:59:01,086 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:59:01,087 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 34 treesize of output 25 [2022-11-16 15:59:01,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:01,135 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 13 [2022-11-16 15:59:01,162 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:59:01,162 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 19 treesize of output 18 [2022-11-16 15:59:01,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:01,229 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 15:59:01,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 37 treesize of output 17 [2022-11-16 15:59:01,242 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 [2022-11-16 15:59:01,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:01,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:01,263 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:59:01,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:59:01,277 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 [2022-11-16 15:59:01,293 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 [2022-11-16 15:59:01,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:01,350 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 15:59:01,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:59:01,363 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 [2022-11-16 15:59:01,375 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 [2022-11-16 15:59:01,386 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 [2022-11-16 15:59:01,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:01,412 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 15:59:01,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 37 treesize of output 17 [2022-11-16 15:59:01,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:01,631 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:59:01,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:59:01,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:01,691 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 15:59:01,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-11-16 15:59:01,702 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:01,712 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 [2022-11-16 15:59:01,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:01,821 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:59:01,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:59:01,895 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:01,907 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 15:59:01,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-11-16 15:59:01,920 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 [2022-11-16 15:59:01,959 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-16 15:59:01,959 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-16 15:59:02,543 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2022-11-16 15:59:02,548 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 [2022-11-16 15:59:02,553 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 [2022-11-16 15:59:02,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:02,564 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 22 treesize of output 7 [2022-11-16 15:59:02,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:02,573 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 [2022-11-16 15:59:02,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:02,579 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 22 treesize of output 7 [2022-11-16 15:59:02,581 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:59:10,265 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2262#(and (<= |ULTIMATE.start_sll_circular_append_~data#1| 1) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_sll_circular_append_#in~data#1|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) |ULTIMATE.start_main_~data~0#1|)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_append_~data#1|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.base|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 1) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-16 15:59:10,265 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:59:10,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:59:10,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 49 [2022-11-16 15:59:10,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043500527] [2022-11-16 15:59:10,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:59:10,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-16 15:59:10,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:59:10,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-16 15:59:10,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=6029, Unknown=10, NotChecked=0, Total=6320 [2022-11-16 15:59:10,268 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand has 50 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 15:59:13,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:59:13,191 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2022-11-16 15:59:13,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 15:59:13,192 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31 [2022-11-16 15:59:13,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:59:13,193 INFO L225 Difference]: With dead ends: 69 [2022-11-16 15:59:13,193 INFO L226 Difference]: Without dead ends: 67 [2022-11-16 15:59:13,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1926 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=462, Invalid=7718, Unknown=10, NotChecked=0, Total=8190 [2022-11-16 15:59:13,195 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 70 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 15:59:13,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 188 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 768 Invalid, 0 Unknown, 66 Unchecked, 0.9s Time] [2022-11-16 15:59:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-16 15:59:13,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2022-11-16 15:59:13,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 50 states have (on average 1.16) internal successors, (58), 50 states have internal predecessors, (58), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 15:59:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2022-11-16 15:59:13,218 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 31 [2022-11-16 15:59:13,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:59:13,219 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2022-11-16 15:59:13,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 15:59:13,219 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2022-11-16 15:59:13,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 15:59:13,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:59:13,220 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:59:13,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 15:59:13,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 15:59:13,428 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:59:13,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:59:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash -308595274, now seen corresponding path program 1 times [2022-11-16 15:59:13,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:59:13,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25260287] [2022-11-16 15:59:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:59:13,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:59:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:59:16,227 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:59:16,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:59:16,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25260287] [2022-11-16 15:59:16,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25260287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:59:16,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725669393] [2022-11-16 15:59:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:59:16,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:59:16,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:59:16,231 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:59:16,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 15:59:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:59:16,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 169 conjunts are in the unsatisfiable core [2022-11-16 15:59:16,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:59:16,715 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 5 [2022-11-16 15:59:17,054 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:59:17,054 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 17 treesize of output 21 [2022-11-16 15:59:17,140 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 11 treesize of output 7 [2022-11-16 15:59:17,157 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 11 treesize of output 7 [2022-11-16 15:59:17,255 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 15:59:17,255 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 71 treesize of output 52 [2022-11-16 15:59:17,267 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 26 treesize of output 28 [2022-11-16 15:59:17,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:17,570 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 15:59:17,570 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 62 [2022-11-16 15:59:17,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:17,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:17,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:17,592 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:59:17,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 29 treesize of output 35 [2022-11-16 15:59:17,612 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-16 15:59:17,612 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 20 treesize of output 22 [2022-11-16 15:59:18,941 INFO L321 Elim1Store]: treesize reduction 207, result has 12.3 percent of original size [2022-11-16 15:59:18,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 14 case distinctions, treesize of input 234 treesize of output 130 [2022-11-16 15:59:18,985 INFO L321 Elim1Store]: treesize reduction 86, result has 18.9 percent of original size [2022-11-16 15:59:18,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 306 treesize of output 203 [2022-11-16 15:59:18,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:18,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:19,015 INFO L321 Elim1Store]: treesize reduction 105, result has 6.3 percent of original size [2022-11-16 15:59:19,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 243 treesize of output 163 [2022-11-16 15:59:19,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:19,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:19,051 INFO L321 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-11-16 15:59:19,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 203 treesize of output 148 [2022-11-16 15:59:19,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:19,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:19,402 INFO L321 Elim1Store]: treesize reduction 54, result has 5.3 percent of original size [2022-11-16 15:59:19,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 172 treesize of output 93 [2022-11-16 15:59:19,573 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-16 15:59:19,573 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 42 [2022-11-16 15:59:19,643 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:59:19,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:59:19,834 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1373 (Array Int Int)) (v_ArrVal_1372 (Array Int Int))) (not (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_1373))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_1372))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (select (select .cse3 .cse1) .cse2)))) .cse1))))) is different from false [2022-11-16 15:59:22,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725669393] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:59:22,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1207741667] [2022-11-16 15:59:22,716 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-11-16 15:59:22,717 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:59:22,717 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:59:22,717 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:59:22,717 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:59:22,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:22,746 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 15:59:22,746 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 [2022-11-16 15:59:22,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:22,769 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:59:22,769 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 [2022-11-16 15:59:22,788 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 [2022-11-16 15:59:22,792 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 [2022-11-16 15:59:22,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:22,808 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 [2022-11-16 15:59:22,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:22,814 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 22 treesize of output 7 [2022-11-16 15:59:22,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:22,819 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 22 treesize of output 7 [2022-11-16 15:59:22,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:22,835 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 [2022-11-16 15:59:22,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:22,846 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 [2022-11-16 15:59:22,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:22,877 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 [2022-11-16 15:59:22,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:22,885 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 [2022-11-16 15:59:22,937 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 [2022-11-16 15:59:22,945 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 [2022-11-16 15:59:22,956 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 [2022-11-16 15:59:22,964 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 [2022-11-16 15:59:22,974 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 [2022-11-16 15:59:23,004 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 [2022-11-16 15:59:23,012 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 [2022-11-16 15:59:23,020 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 [2022-11-16 15:59:23,028 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 [2022-11-16 15:59:23,040 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 [2022-11-16 15:59:23,068 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 19 treesize of output 11 [2022-11-16 15:59:23,077 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 19 treesize of output 11 [2022-11-16 15:59:23,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:23,090 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 23 treesize of output 11 [2022-11-16 15:59:23,354 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:23,356 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:23,357 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:23,359 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:23,360 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:23,371 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 [2022-11-16 15:59:23,380 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 [2022-11-16 15:59:23,389 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 [2022-11-16 15:59:23,398 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 [2022-11-16 15:59:23,408 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 [2022-11-16 15:59:23,603 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:23,605 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:23,606 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:23,607 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:23,609 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:23,619 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 [2022-11-16 15:59:23,628 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 [2022-11-16 15:59:23,637 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 [2022-11-16 15:59:23,649 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 [2022-11-16 15:59:23,661 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 [2022-11-16 15:59:23,689 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 19 treesize of output 11 [2022-11-16 15:59:23,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:23,699 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 23 treesize of output 11 [2022-11-16 15:59:23,712 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 19 treesize of output 11 [2022-11-16 15:59:24,031 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 [2022-11-16 15:59:24,040 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 [2022-11-16 15:59:24,049 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 [2022-11-16 15:59:24,059 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 7 treesize of output 3 [2022-11-16 15:59:24,067 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 [2022-11-16 15:59:24,082 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,083 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,085 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,086 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,088 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,207 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,220 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,222 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,223 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,225 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,236 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 [2022-11-16 15:59:24,245 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 [2022-11-16 15:59:24,254 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 [2022-11-16 15:59:24,264 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 [2022-11-16 15:59:24,278 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 [2022-11-16 15:59:24,334 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:59:24,335 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 19 treesize of output 18 [2022-11-16 15:59:24,362 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:59:24,362 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 19 treesize of output 18 [2022-11-16 15:59:24,378 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 23 treesize of output 11 [2022-11-16 15:59:24,437 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 [2022-11-16 15:59:24,448 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 [2022-11-16 15:59:24,458 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 [2022-11-16 15:59:24,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:24,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:24,478 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:59:24,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:59:24,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:24,503 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:59:24,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:59:24,557 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 [2022-11-16 15:59:24,570 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 [2022-11-16 15:59:24,585 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 [2022-11-16 15:59:24,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:24,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:24,605 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:59:24,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:59:24,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:24,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:24,626 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:59:24,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:59:24,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:24,858 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:59:24,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:59:24,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:24,919 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 15:59:24,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-11-16 15:59:24,928 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:24,938 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 [2022-11-16 15:59:24,991 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-16 15:59:24,992 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-16 15:59:25,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:25,083 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:59:25,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:59:25,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:25,165 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 15:59:25,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-11-16 15:59:25,176 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:25,190 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 [2022-11-16 15:59:25,826 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 11 for LOIs [2022-11-16 15:59:25,833 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 [2022-11-16 15:59:25,838 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 [2022-11-16 15:59:25,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:25,849 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 22 treesize of output 7 [2022-11-16 15:59:25,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:25,858 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 [2022-11-16 15:59:25,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:25,864 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 22 treesize of output 7 [2022-11-16 15:59:25,865 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:59:33,190 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2688#(and (<= |ULTIMATE.start_sll_circular_append_~data#1| 1) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 1 |ULTIMATE.start_sll_circular_append_#in~data#1|) (<= 1 |ULTIMATE.start_main_~count~0#1|) (not (= |ULTIMATE.start_main_~count~0#1| (+ |ULTIMATE.start_main_~len~0#1| 1))) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_append_~data#1|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.base|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (exists ((|v_ULTIMATE.start_main_~ptr~0#1.base_38| Int) (|v_ULTIMATE.start_main_~ptr~0#1.offset_36| Int)) (and (= (select (select |#memory_int| |v_ULTIMATE.start_main_~ptr~0#1.base_38|) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_36| 4)) |ULTIMATE.start_main_~data~0#1|) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~ptr~0#1.base_38|) |v_ULTIMATE.start_main_~ptr~0#1.offset_36|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~ptr~0#1.base_38|) |v_ULTIMATE.start_main_~ptr~0#1.offset_36|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 1) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-16 15:59:33,190 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:59:33,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:59:33,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 48 [2022-11-16 15:59:33,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281361699] [2022-11-16 15:59:33,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:59:33,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-16 15:59:33,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:59:33,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-16 15:59:33,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=5459, Unknown=4, NotChecked=148, Total=5852 [2022-11-16 15:59:33,193 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 48 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 39 states have internal predecessors, (51), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-16 15:59:36,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:59:36,823 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2022-11-16 15:59:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 15:59:36,825 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 39 states have internal predecessors, (51), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 33 [2022-11-16 15:59:36,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:59:36,825 INFO L225 Difference]: With dead ends: 71 [2022-11-16 15:59:36,826 INFO L226 Difference]: Without dead ends: 68 [2022-11-16 15:59:36,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2033 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=409, Invalid=7963, Unknown=4, NotChecked=180, Total=8556 [2022-11-16 15:59:36,830 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 76 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 133 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 15:59:36,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 259 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 592 Invalid, 0 Unknown, 133 Unchecked, 0.7s Time] [2022-11-16 15:59:36,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-16 15:59:36,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 61. [2022-11-16 15:59:36,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 50 states have (on average 1.16) internal successors, (58), 50 states have internal predecessors, (58), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 15:59:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2022-11-16 15:59:36,868 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 33 [2022-11-16 15:59:36,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:59:36,868 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2022-11-16 15:59:36,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 39 states have internal predecessors, (51), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-16 15:59:36,869 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2022-11-16 15:59:36,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 15:59:36,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:59:36,869 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:59:36,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 15:59:37,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 15:59:37,075 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:59:37,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:59:37,075 INFO L85 PathProgramCache]: Analyzing trace with hash 773748330, now seen corresponding path program 3 times [2022-11-16 15:59:37,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:59:37,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966358049] [2022-11-16 15:59:37,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:59:37,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:59:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:59:37,158 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 15:59:37,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:59:37,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966358049] [2022-11-16 15:59:37,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966358049] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:59:37,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185840584] [2022-11-16 15:59:37,159 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 15:59:37,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:59:37,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:59:37,160 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:59:37,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 15:59:37,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 15:59:37,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:59:37,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 15:59:37,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:59:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 15:59:37,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 15:59:37,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185840584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:59:37,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 15:59:37,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-16 15:59:37,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736600851] [2022-11-16 15:59:37,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:59:37,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:59:37,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:59:37,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:59:37,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:59:37,946 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 15:59:37,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:59:37,980 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2022-11-16 15:59:37,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:59:37,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-11-16 15:59:37,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:59:37,981 INFO L225 Difference]: With dead ends: 71 [2022-11-16 15:59:37,981 INFO L226 Difference]: Without dead ends: 31 [2022-11-16 15:59:37,982 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 [2022-11-16 15:59:37,982 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 30 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:59:37,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 26 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:59:37,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-16 15:59:37,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-16 15:59:37,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 15:59:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-11-16 15:59:37,993 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 34 [2022-11-16 15:59:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:59:37,993 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-11-16 15:59:37,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 15:59:37,993 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-11-16 15:59:37,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 15:59:37,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:59:37,994 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:59:38,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 15:59:38,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:59:38,194 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:59:38,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:59:38,195 INFO L85 PathProgramCache]: Analyzing trace with hash -976477737, now seen corresponding path program 2 times [2022-11-16 15:59:38,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:59:38,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624288962] [2022-11-16 15:59:38,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:59:38,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:59:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:59:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 15:59:40,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:59:40,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624288962] [2022-11-16 15:59:40,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624288962] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:59:40,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309232420] [2022-11-16 15:59:40,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:59:40,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:59:40,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:59:40,820 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:59:40,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 15:59:41,222 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 15:59:41,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:59:41,228 WARN L261 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 220 conjunts are in the unsatisfiable core [2022-11-16 15:59:41,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:59:41,295 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 5 [2022-11-16 15:59:41,347 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 [2022-11-16 15:59:41,815 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 15:59:41,815 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 14 treesize of output 20 [2022-11-16 15:59:41,822 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 [2022-11-16 15:59:41,846 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:59:41,846 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 17 treesize of output 21 [2022-11-16 15:59:41,959 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 14 treesize of output 16 [2022-11-16 15:59:41,970 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 11 treesize of output 7 [2022-11-16 15:59:41,986 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 11 treesize of output 7 [2022-11-16 15:59:42,132 INFO L321 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2022-11-16 15:59:42,132 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 130 treesize of output 68 [2022-11-16 15:59:42,145 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 39 treesize of output 30 [2022-11-16 15:59:42,159 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 43 treesize of output 34 [2022-11-16 15:59:42,322 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 15:59:42,323 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 48 [2022-11-16 15:59:42,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:42,333 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:59:42,334 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 15:59:42,342 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 [2022-11-16 15:59:42,346 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 11 treesize of output 7 [2022-11-16 15:59:42,500 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 11 treesize of output 14 [2022-11-16 15:59:42,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:42,661 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-16 15:59:42,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 114 treesize of output 94 [2022-11-16 15:59:42,686 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-16 15:59:42,687 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 28 treesize of output 30 [2022-11-16 15:59:42,699 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 22 treesize of output 24 [2022-11-16 15:59:42,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:42,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:42,715 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-16 15:59:42,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 48 [2022-11-16 15:59:44,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:44,310 INFO L321 Elim1Store]: treesize reduction 170, result has 15.4 percent of original size [2022-11-16 15:59:44,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 652 treesize of output 397 [2022-11-16 15:59:44,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:44,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:44,368 INFO L321 Elim1Store]: treesize reduction 114, result has 4.2 percent of original size [2022-11-16 15:59:44,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 7 case distinctions, treesize of input 442 treesize of output 462 [2022-11-16 15:59:44,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:44,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:44,507 INFO L321 Elim1Store]: treesize reduction 367, result has 11.1 percent of original size [2022-11-16 15:59:44,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 498 treesize of output 325 [2022-11-16 15:59:44,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 19 treesize of output 31 [2022-11-16 15:59:44,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:44,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 41 treesize of output 30 [2022-11-16 15:59:44,578 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 [2022-11-16 15:59:44,600 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 14 treesize of output 18 [2022-11-16 15:59:44,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 19 treesize of output 31 [2022-11-16 15:59:44,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 25 [2022-11-16 15:59:44,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 167 [2022-11-16 15:59:45,075 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-16 15:59:45,075 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 296 [2022-11-16 15:59:45,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:45,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:45,357 INFO L321 Elim1Store]: treesize reduction 97, result has 28.7 percent of original size [2022-11-16 15:59:45,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 469 treesize of output 378 [2022-11-16 15:59:45,383 INFO L321 Elim1Store]: treesize reduction 69, result has 4.2 percent of original size [2022-11-16 15:59:45,384 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 336 treesize of output 330 [2022-11-16 15:59:45,403 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 0 case distinctions, treesize of input 14 treesize of output 3 [2022-11-16 15:59:45,462 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 0 case distinctions, treesize of input 18 treesize of output 3 [2022-11-16 15:59:45,663 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 [2022-11-16 15:59:45,781 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 46 treesize of output 38 [2022-11-16 15:59:45,824 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 9 treesize of output 7 [2022-11-16 15:59:45,876 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 45 treesize of output 35 [2022-11-16 15:59:46,044 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 9 treesize of output 7 [2022-11-16 15:59:46,084 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 9 treesize of output 7 [2022-11-16 15:59:49,124 INFO L321 Elim1Store]: treesize reduction 73, result has 39.7 percent of original size [2022-11-16 15:59:49,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 556 treesize of output 399 [2022-11-16 15:59:49,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:49,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:49,225 INFO L321 Elim1Store]: treesize reduction 164, result has 20.8 percent of original size [2022-11-16 15:59:49,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 475 treesize of output 347 [2022-11-16 15:59:49,245 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 227 treesize of output 225 [2022-11-16 15:59:49,254 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 225 treesize of output 215 [2022-11-16 15:59:49,271 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 215 treesize of output 205 [2022-11-16 15:59:49,283 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 205 treesize of output 203 [2022-11-16 15:59:49,407 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-11-16 15:59:49,412 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 23 treesize of output 17 [2022-11-16 15:59:49,416 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 [2022-11-16 15:59:49,420 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 12 treesize of output 8 [2022-11-16 15:59:49,625 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 [2022-11-16 15:59:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:59:49,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:59:54,970 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:59:54,970 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 9931 treesize of output 9926 [2022-11-16 15:59:56,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309232420] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:59:56,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [110167408] [2022-11-16 15:59:56,806 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-16 15:59:56,806 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:59:56,807 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:59:56,807 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:59:56,807 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:59:56,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:56,842 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:59:56,843 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 [2022-11-16 15:59:56,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:56,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 15:59:56,871 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 [2022-11-16 15:59:56,884 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 [2022-11-16 15:59:56,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:56,891 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 22 treesize of output 7 [2022-11-16 15:59:56,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:56,899 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 [2022-11-16 15:59:56,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:56,905 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 22 treesize of output 7 [2022-11-16 15:59:56,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:56,922 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 [2022-11-16 15:59:56,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:56,932 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 [2022-11-16 15:59:56,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:56,963 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 [2022-11-16 15:59:56,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:56,974 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 [2022-11-16 15:59:57,142 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 [2022-11-16 15:59:57,151 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 [2022-11-16 15:59:57,159 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 [2022-11-16 15:59:57,169 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 [2022-11-16 15:59:57,177 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 [2022-11-16 15:59:57,188 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:57,190 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:57,193 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:57,195 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:57,209 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:57,354 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 [2022-11-16 15:59:57,362 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 [2022-11-16 15:59:57,371 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 [2022-11-16 15:59:57,379 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 [2022-11-16 15:59:57,387 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 [2022-11-16 15:59:57,398 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:57,400 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:57,402 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:57,403 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:57,404 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:57,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:57,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:57,456 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 205 [2022-11-16 15:59:57,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:57,469 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 207 [2022-11-16 15:59:57,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:57,480 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 114 [2022-11-16 15:59:57,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:57,636 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 140 treesize of output 124 [2022-11-16 15:59:57,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:57,646 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 136 treesize of output 124 [2022-11-16 15:59:57,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:57,656 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 128 treesize of output 116 [2022-11-16 15:59:57,809 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 15 treesize of output 1 [2022-11-16 15:59:57,819 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 [2022-11-16 15:59:57,827 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 [2022-11-16 15:59:57,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:57,911 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:59:57,911 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 15 treesize of output 7 [2022-11-16 15:59:57,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:57,927 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:59:57,927 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 15 treesize of output 7 [2022-11-16 15:59:58,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:58,044 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:59:58,044 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 15 treesize of output 7 [2022-11-16 15:59:58,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:58,075 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:59:58,076 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 15 treesize of output 7 [2022-11-16 15:59:58,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:58,358 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:59:58,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:59:58,427 INFO L321 Elim1Store]: treesize reduction 39, result has 48.7 percent of original size [2022-11-16 15:59:58,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 67 [2022-11-16 15:59:58,444 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 [2022-11-16 15:59:58,464 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 [2022-11-16 15:59:58,484 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:59:58,485 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 16 treesize of output 20 [2022-11-16 15:59:58,518 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:59:58,518 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 21 treesize of output 25 [2022-11-16 15:59:58,532 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:58,608 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-16 15:59:58,608 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-16 15:59:58,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:58,698 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 15:59:58,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 15:59:58,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:59:58,780 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 15:59:58,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-11-16 15:59:58,792 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:59:58,803 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 [2022-11-16 15:59:59,436 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-16 15:59:59,446 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 [2022-11-16 15:59:59,455 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 [2022-11-16 15:59:59,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:59,471 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 [2022-11-16 15:59:59,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:59,493 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 22 treesize of output 7 [2022-11-16 15:59:59,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:59:59,500 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 22 treesize of output 7 [2022-11-16 15:59:59,504 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:00:07,521 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3386#(and (<= |ULTIMATE.start_sll_circular_append_~data#1| 1) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_sll_circular_append_#in~data#1|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) |ULTIMATE.start_main_~data~0#1|)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_append_~data#1|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.base|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 1) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-16 16:00:07,521 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:00:07,521 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:00:07,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 28] total 52 [2022-11-16 16:00:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624323826] [2022-11-16 16:00:07,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:00:07,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-16 16:00:07,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:00:07,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-16 16:00:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=6662, Unknown=10, NotChecked=0, Total=6972 [2022-11-16 16:00:07,523 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 52 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 41 states have internal predecessors, (53), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 16:00:11,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:00:11,518 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-11-16 16:00:11,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 16:00:11,519 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 41 states have internal predecessors, (53), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 34 [2022-11-16 16:00:11,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:00:11,519 INFO L225 Difference]: With dead ends: 35 [2022-11-16 16:00:11,520 INFO L226 Difference]: Without dead ends: 33 [2022-11-16 16:00:11,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1961 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=444, Invalid=9446, Unknown=10, NotChecked=0, Total=9900 [2022-11-16 16:00:11,521 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 14 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 136 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:00:11,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 205 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 650 Invalid, 0 Unknown, 136 Unchecked, 0.7s Time] [2022-11-16 16:00:11,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-16 16:00:11,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-16 16:00:11,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 16:00:11,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-16 16:00:11,533 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 34 [2022-11-16 16:00:11,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:00:11,534 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-16 16:00:11,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 41 states have internal predecessors, (53), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 16:00:11,534 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-16 16:00:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 16:00:11,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:00:11,535 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:00:11,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 16:00:11,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:00:11,735 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:00:11,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:00:11,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2090297139, now seen corresponding path program 2 times [2022-11-16 16:00:11,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:00:11,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941407897] [2022-11-16 16:00:11,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:00:11,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:00:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:00:11,873 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 16:00:11,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:00:11,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941407897] [2022-11-16 16:00:11,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941407897] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:00:11,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658593785] [2022-11-16 16:00:11,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 16:00:11,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:00:11,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:00:11,875 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:00:11,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 16:00:12,352 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 16:00:12,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:00:12,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 16:00:12,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:00:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 16:00:12,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:00:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 16:00:12,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658593785] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:00:12,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [562902181] [2022-11-16 16:00:12,509 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-11-16 16:00:12,509 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:00:12,509 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:00:12,509 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:00:12,509 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:00:12,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:12,534 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 16:00:12,534 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 [2022-11-16 16:00:12,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:12,557 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 16:00:12,557 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 [2022-11-16 16:00:12,577 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 [2022-11-16 16:00:12,581 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 [2022-11-16 16:00:12,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:12,590 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 [2022-11-16 16:00:12,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:12,596 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 22 treesize of output 7 [2022-11-16 16:00:12,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:12,602 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 22 treesize of output 7 [2022-11-16 16:00:12,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:12,617 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 [2022-11-16 16:00:12,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:12,627 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 [2022-11-16 16:00:12,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:12,665 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 [2022-11-16 16:00:12,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:12,674 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 [2022-11-16 16:00:12,729 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 [2022-11-16 16:00:12,737 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 [2022-11-16 16:00:12,749 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 [2022-11-16 16:00:12,758 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 [2022-11-16 16:00:12,766 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 [2022-11-16 16:00:12,794 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 [2022-11-16 16:00:12,802 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 [2022-11-16 16:00:12,812 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 [2022-11-16 16:00:12,820 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 [2022-11-16 16:00:12,830 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 [2022-11-16 16:00:12,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:12,871 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 23 treesize of output 11 [2022-11-16 16:00:12,882 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 19 treesize of output 11 [2022-11-16 16:00:12,891 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 19 treesize of output 11 [2022-11-16 16:00:13,103 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 [2022-11-16 16:00:13,112 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 [2022-11-16 16:00:13,121 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 [2022-11-16 16:00:13,130 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 [2022-11-16 16:00:13,142 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 [2022-11-16 16:00:13,155 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,156 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,158 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,160 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,162 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,394 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 [2022-11-16 16:00:13,403 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 [2022-11-16 16:00:13,414 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 [2022-11-16 16:00:13,422 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 [2022-11-16 16:00:13,431 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 [2022-11-16 16:00:13,444 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,445 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,447 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,448 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,449 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:00:13,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:13,502 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 205 [2022-11-16 16:00:13,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:00:13,514 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 207 [2022-11-16 16:00:13,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:00:13,528 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 110 [2022-11-16 16:00:13,882 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 [2022-11-16 16:00:13,890 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 [2022-11-16 16:00:13,901 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 [2022-11-16 16:00:13,910 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 [2022-11-16 16:00:13,919 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 [2022-11-16 16:00:13,932 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,934 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,936 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,937 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:13,938 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:14,108 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 [2022-11-16 16:00:14,117 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 [2022-11-16 16:00:14,125 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 [2022-11-16 16:00:14,136 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 [2022-11-16 16:00:14,145 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 [2022-11-16 16:00:14,158 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:14,160 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:14,162 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:14,163 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:14,164 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:14,215 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 23 treesize of output 11 [2022-11-16 16:00:14,242 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 16:00:14,242 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 19 treesize of output 18 [2022-11-16 16:00:14,271 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 16:00:14,272 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 19 treesize of output 18 [2022-11-16 16:00:14,327 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 [2022-11-16 16:00:14,337 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 [2022-11-16 16:00:14,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:14,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:14,357 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:14,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 16:00:14,373 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 [2022-11-16 16:00:14,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:14,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:14,395 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:14,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 16:00:14,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:14,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:14,453 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:14,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 16:00:14,466 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 [2022-11-16 16:00:14,479 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 [2022-11-16 16:00:14,493 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 [2022-11-16 16:00:14,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:14,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:14,513 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:14,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-16 16:00:14,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:00:14,763 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 16:00:14,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 16:00:14,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:00:14,822 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 16:00:14,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-11-16 16:00:14,826 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:14,835 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 [2022-11-16 16:00:14,885 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-16 16:00:14,885 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-16 16:00:14,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:00:14,979 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-11-16 16:00:14,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-11-16 16:00:15,051 INFO L321 Elim1Store]: treesize reduction 39, result has 48.7 percent of original size [2022-11-16 16:00:15,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 67 [2022-11-16 16:00:15,069 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 [2022-11-16 16:00:15,086 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 [2022-11-16 16:00:15,111 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 16:00:15,111 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 16 treesize of output 20 [2022-11-16 16:00:15,136 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:15,137 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 27 treesize of output 21 [2022-11-16 16:00:15,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:15,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:00:15,152 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 63 [2022-11-16 16:00:15,853 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2022-11-16 16:00:15,857 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 [2022-11-16 16:00:15,861 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 [2022-11-16 16:00:15,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:15,871 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 22 treesize of output 7 [2022-11-16 16:00:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:15,876 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 22 treesize of output 7 [2022-11-16 16:00:15,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:15,885 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 [2022-11-16 16:00:15,887 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:00:20,552 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3753#(and (<= |ULTIMATE.start_sll_circular_append_~data#1| 1) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 1 |ULTIMATE.start_sll_circular_append_#in~data#1|) (exists ((|v_ULTIMATE.start_main_~ptr~0#1.base_53| Int) (|v_ULTIMATE.start_main_~ptr~0#1.offset_51| Int)) (and (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~ptr~0#1.base_53|) |v_ULTIMATE.start_main_~ptr~0#1.offset_51|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~ptr~0#1.base_53|) |v_ULTIMATE.start_main_~ptr~0#1.offset_51|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~ptr~0#1.base_53|) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_51| 4)) |ULTIMATE.start_main_~data~0#1|))) (<= 1 |ULTIMATE.start_main_~count~0#1|) (not (= |ULTIMATE.start_main_~count~0#1| (+ |ULTIMATE.start_main_~len~0#1| 1))) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_append_~data#1|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.base|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 1) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-16 16:00:20,553 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:00:20,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:00:20,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-11-16 16:00:20,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741049144] [2022-11-16 16:00:20,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 16:00:20,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 16:00:20,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:00:20,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 16:00:20,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=807, Unknown=3, NotChecked=0, Total=930 [2022-11-16 16:00:20,554 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 16:00:20,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:00:20,627 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-11-16 16:00:20,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:00:20,628 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-11-16 16:00:20,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:00:20,629 INFO L225 Difference]: With dead ends: 41 [2022-11-16 16:00:20,629 INFO L226 Difference]: Without dead ends: 38 [2022-11-16 16:00:20,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=120, Invalid=807, Unknown=3, NotChecked=0, Total=930 [2022-11-16 16:00:20,630 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:00:20,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 151 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:00:20,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-16 16:00:20,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2022-11-16 16:00:20,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 16:00:20,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-16 16:00:20,647 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 36 [2022-11-16 16:00:20,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:00:20,647 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-16 16:00:20,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 16:00:20,648 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-16 16:00:20,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-16 16:00:20,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:00:20,649 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:00:20,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 16:00:20,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 16:00:20,856 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:00:20,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:00:20,857 INFO L85 PathProgramCache]: Analyzing trace with hash -374660704, now seen corresponding path program 3 times [2022-11-16 16:00:20,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:00:20,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261731686] [2022-11-16 16:00:20,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:00:20,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:00:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:00:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 16:00:23,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:00:23,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261731686] [2022-11-16 16:00:23,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261731686] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:00:23,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520473129] [2022-11-16 16:00:23,231 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 16:00:23,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:00:23,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:00:23,233 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:00:23,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77a27c29-a77a-42ad-937d-7bdb0bd51796/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 16:00:23,520 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 16:00:23,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:00:23,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 168 conjunts are in the unsatisfiable core [2022-11-16 16:00:23,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:00:23,679 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 5 [2022-11-16 16:00:23,821 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 [2022-11-16 16:00:23,890 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 15 treesize of output 11 [2022-11-16 16:00:23,905 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-11-16 16:00:23,905 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 22 [2022-11-16 16:00:24,237 INFO L321 Elim1Store]: treesize reduction 63, result has 35.1 percent of original size [2022-11-16 16:00:24,238 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 3 case distinctions, treesize of input 46 treesize of output 63 [2022-11-16 16:00:24,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:24,284 INFO L321 Elim1Store]: treesize reduction 94, result has 19.7 percent of original size [2022-11-16 16:00:24,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 53 [2022-11-16 16:00:24,297 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 16:00:24,297 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 11 treesize of output 11 [2022-11-16 16:00:25,907 INFO L321 Elim1Store]: treesize reduction 291, result has 29.9 percent of original size [2022-11-16 16:00:25,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 520 treesize of output 349 [2022-11-16 16:00:26,303 INFO L321 Elim1Store]: treesize reduction 778, result has 25.1 percent of original size [2022-11-16 16:00:26,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 525 treesize of output 568 [2022-11-16 16:00:29,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:00:30,192 INFO L321 Elim1Store]: treesize reduction 319, result has 34.2 percent of original size [2022-11-16 16:00:30,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 27 case distinctions, treesize of input 445 treesize of output 475 [2022-11-16 16:00:31,254 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:00:31,255 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 315 treesize of output 309 [2022-11-16 16:00:32,614 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:32,639 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:32,748 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:32,759 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:32,772 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:32,817 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:32,844 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:33,097 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:33,109 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:33,249 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2022-11-16 16:00:33,705 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 151 treesize of output 135 [2022-11-16 16:00:33,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:33,936 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:33,936 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 80 [2022-11-16 16:00:34,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:34,040 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:34,041 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 151 treesize of output 132 [2022-11-16 16:00:34,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:34,178 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:34,178 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 168 treesize of output 147 [2022-11-16 16:00:34,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:34,466 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:34,467 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 173 treesize of output 152 [2022-11-16 16:00:34,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:34,650 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:34,651 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 173 treesize of output 152 [2022-11-16 16:00:35,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:35,075 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:35,076 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 190 treesize of output 167 [2022-11-16 16:00:35,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:35,399 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 62 treesize of output 52 [2022-11-16 16:00:35,436 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:35,436 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 62 treesize of output 52 [2022-11-16 16:00:35,516 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:35,516 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 68 treesize of output 56 [2022-11-16 16:00:35,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:35,572 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 68 treesize of output 56 [2022-11-16 16:00:35,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:35,689 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 57 treesize of output 49 [2022-11-16 16:00:35,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:35,728 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 57 treesize of output 49 [2022-11-16 16:00:35,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:35,810 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 63 treesize of output 53 [2022-11-16 16:00:35,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:35,873 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 63 treesize of output 53 [2022-11-16 16:00:35,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:35,937 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 63 treesize of output 53 [2022-11-16 16:00:35,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:35,995 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 63 treesize of output 53 [2022-11-16 16:00:36,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,040 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 69 treesize of output 57 [2022-11-16 16:00:36,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,099 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 69 treesize of output 57 [2022-11-16 16:00:36,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,241 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 63 treesize of output 53 [2022-11-16 16:00:36,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,305 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 63 treesize of output 53 [2022-11-16 16:00:36,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,330 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 69 treesize of output 57 [2022-11-16 16:00:36,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,363 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 69 treesize of output 57 [2022-11-16 16:00:36,418 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:36,536 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:36,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,624 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 62 treesize of output 52 [2022-11-16 16:00:36,660 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:36,660 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 62 treesize of output 52 [2022-11-16 16:00:36,727 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:36,727 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 68 treesize of output 56 [2022-11-16 16:00:36,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,770 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 68 treesize of output 56 [2022-11-16 16:00:36,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,867 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 57 treesize of output 49 [2022-11-16 16:00:36,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,901 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 57 treesize of output 49 [2022-11-16 16:00:36,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:36,963 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 63 treesize of output 53 [2022-11-16 16:00:37,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,013 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 63 treesize of output 53 [2022-11-16 16:00:37,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,063 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 63 treesize of output 53 [2022-11-16 16:00:37,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,108 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 63 treesize of output 53 [2022-11-16 16:00:37,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,141 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 69 treesize of output 57 [2022-11-16 16:00:37,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,186 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 69 treesize of output 57 [2022-11-16 16:00:37,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,297 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 69 treesize of output 57 [2022-11-16 16:00:37,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,362 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 63 treesize of output 53 [2022-11-16 16:00:37,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,495 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 62 treesize of output 52 [2022-11-16 16:00:37,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,594 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 68 treesize of output 56 [2022-11-16 16:00:37,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,698 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 57 treesize of output 49 [2022-11-16 16:00:37,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,791 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 63 treesize of output 53 [2022-11-16 16:00:37,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,843 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 69 treesize of output 57 [2022-11-16 16:00:37,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:37,922 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 63 treesize of output 53 [2022-11-16 16:00:38,091 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:38,131 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:38,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:38,252 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 62 treesize of output 52 [2022-11-16 16:00:38,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:38,355 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 68 treesize of output 56 [2022-11-16 16:00:38,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:38,467 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 57 treesize of output 49 [2022-11-16 16:00:38,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:38,556 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 63 treesize of output 53 [2022-11-16 16:00:38,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:38,604 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 69 treesize of output 57 [2022-11-16 16:00:38,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:38,681 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 63 treesize of output 53 [2022-11-16 16:00:39,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:00:39,690 INFO L321 Elim1Store]: treesize reduction 74, result has 31.5 percent of original size [2022-11-16 16:00:39,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 5619 treesize of output 4462 [2022-11-16 16:00:41,437 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-11-16 16:00:42,573 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:42,583 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:42,592 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:42,599 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:42,712 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:42,731 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:42,891 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:42,917 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:42,922 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:00:44,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 43 treesize of output 33 [2022-11-16 16:00:44,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 52 treesize of output 40 [2022-11-16 16:00:44,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 43 treesize of output 33 [2022-11-16 16:00:44,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 52 treesize of output 40 [2022-11-16 16:00:44,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,556 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:44,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 36 [2022-11-16 16:00:44,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,585 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:44,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 43 [2022-11-16 16:00:44,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,630 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 52 treesize of output 40 [2022-11-16 16:00:44,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,677 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 43 treesize of output 33 [2022-11-16 16:00:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,687 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:44,688 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 39 treesize of output 29 [2022-11-16 16:00:44,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,745 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:44,745 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 48 treesize of output 36 [2022-11-16 16:00:44,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,773 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:44,774 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 48 treesize of output 36 [2022-11-16 16:00:44,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,820 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:44,821 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 57 treesize of output 43 [2022-11-16 16:00:44,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,850 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:44,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 43 [2022-11-16 16:00:44,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,882 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:44,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 36 [2022-11-16 16:00:44,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,913 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 61 treesize of output 47 [2022-11-16 16:00:44,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:44,963 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 52 treesize of output 40 [2022-11-16 16:00:45,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,008 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:45,008 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 54 treesize of output 40 [2022-11-16 16:00:45,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,037 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:45,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 40 [2022-11-16 16:00:45,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 67 treesize of output 51 [2022-11-16 16:00:45,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,114 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:45,114 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 63 treesize of output 47 [2022-11-16 16:00:45,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 58 treesize of output 44 [2022-11-16 16:00:45,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,225 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:45,225 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 54 treesize of output 40 [2022-11-16 16:00:45,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,266 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:45,266 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 45 treesize of output 33 [2022-11-16 16:00:45,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,279 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:45,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2022-11-16 16:00:45,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,352 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:45,352 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 48 treesize of output 36 [2022-11-16 16:00:45,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,378 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:45,379 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 39 treesize of output 29 [2022-11-16 16:00:45,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,409 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 61 treesize of output 47 [2022-11-16 16:00:45,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,460 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 52 treesize of output 40 [2022-11-16 16:00:45,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 52 treesize of output 40 [2022-11-16 16:00:45,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 43 treesize of output 33 [2022-11-16 16:00:45,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 52 treesize of output 40 [2022-11-16 16:00:45,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 61 treesize of output 47 [2022-11-16 16:00:45,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,705 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:45,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 29 [2022-11-16 16:00:45,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,735 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:00:45,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 36 [2022-11-16 16:00:45,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,783 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:45,783 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 39 treesize of output 29 [2022-11-16 16:00:45,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,818 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:45,818 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 48 treesize of output 36 [2022-11-16 16:00:45,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 61 treesize of output 47 [2022-11-16 16:00:45,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 52 treesize of output 40 [2022-11-16 16:00:45,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,963 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 61 treesize of output 47 [2022-11-16 16:00:45,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:45,973 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 52 treesize of output 40 [2022-11-16 16:00:46,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:46,056 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:46,056 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 50 [2022-11-16 16:00:46,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:00:46,102 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 16:00:46,102 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 43 [2022-11-16 16:00:46,424 INFO L321 Elim1Store]: treesize reduction 8, result has 97.2 percent of original size [2022-11-16 16:00:46,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 343 treesize of output 563 [2022-11-16 16:08:41,840 WARN L233 SmtUtils]: Spent 21.37s on a formula simplification. DAG size of input: 3081 DAG size of output: 3081 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:09:00,293 WARN L233 SmtUtils]: Spent 14.09s on a formula simplification. DAG size of input: 3046 DAG size of output: 3044 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:09:08,351 WARN L233 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3047 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:09:23,171 WARN L233 SmtUtils]: Spent 7.39s on a formula simplification that was a NOOP. DAG size: 3044 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:09:38,757 WARN L233 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3041 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)