./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur --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 efaea2320311f06fbd3071893d75fb70222c33e449b43348105f12b548a90ab4 --- 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-38b53e6 [2022-11-25 23:47:16,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:47:16,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:47:16,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:47:16,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:47:16,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:47:16,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:47:16,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:47:16,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:47:16,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:47:16,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:47:16,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:47:16,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:47:16,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:47:16,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:47:16,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:47:16,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:47:16,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:47:16,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:47:16,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:47:16,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:47:16,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:47:16,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:47:16,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:47:16,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:47:16,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:47:16,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:47:16,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:47:16,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:47:16,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:47:16,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:47:16,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:47:16,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:47:16,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:47:16,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:47:16,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:47:16,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:47:16,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:47:16,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:47:16,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:47:16,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:47:16,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:47:16,743 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:47:16,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:47:16,744 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:47:16,744 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:47:16,745 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:47:16,745 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:47:16,745 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:47:16,745 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:47:16,745 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:47:16,745 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:47:16,746 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:47:16,746 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:47:16,746 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:47:16,746 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:47:16,746 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:47:16,747 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:47:16,747 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:47:16,747 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:47:16,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:47:16,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:47:16,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:47:16,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:47:16,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:47:16,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:47:16,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:47:16,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:47:16,749 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:47:16,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:47:16,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:47:16,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:47:16,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:47:16,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:47:16,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:47:16,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:47:16,751 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:47:16,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:47:16,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:47:16,752 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:47:16,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:47:16,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:47:16,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:47:16,752 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_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efaea2320311f06fbd3071893d75fb70222c33e449b43348105f12b548a90ab4 [2022-11-25 23:47:17,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:47:17,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:47:17,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:47:17,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:47:17,083 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:47:17,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-3.i [2022-11-25 23:47:20,213 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:47:20,605 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:47:20,605 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-3.i [2022-11-25 23:47:20,623 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/data/1a258d724/c1ab97b9c387406bafa556161f2bcc32/FLAG76e649c2d [2022-11-25 23:47:20,643 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/data/1a258d724/c1ab97b9c387406bafa556161f2bcc32 [2022-11-25 23:47:20,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:47:20,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:47:20,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:47:20,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:47:20,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:47:20,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:47:20" (1/1) ... [2022-11-25 23:47:20,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c9ef0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:20, skipping insertion in model container [2022-11-25 23:47:20,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:47:20" (1/1) ... [2022-11-25 23:47:20,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:47:20,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:47:21,341 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-3.i[33021,33034] [2022-11-25 23:47:21,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:47:21,569 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:47:21,599 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-3.i[33021,33034] [2022-11-25 23:47:21,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:47:21,717 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:47:21,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21 WrapperNode [2022-11-25 23:47:21,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:47:21,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:47:21,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:47:21,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:47:21,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:21,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:21,899 INFO L138 Inliner]: procedures = 177, calls = 448, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1437 [2022-11-25 23:47:21,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:47:21,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:47:21,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:47:21,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:47:21,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:21,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:21,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:21,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:21,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:22,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:22,005 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:22,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:22,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:47:22,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:47:22,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:47:22,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:47:22,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (1/1) ... [2022-11-25 23:47:22,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:47:22,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:22,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:47:22,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:47:22,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:47:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 23:47:22,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 23:47:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:47:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:47:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:47:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:47:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:47:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:47:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:47:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:47:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:47:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:47:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:47:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:47:22,457 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:47:22,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:47:24,639 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:47:25,300 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:47:25,300 INFO L300 CfgBuilder]: Removed 77 assume(true) statements. [2022-11-25 23:47:25,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:25 BoogieIcfgContainer [2022-11-25 23:47:25,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:47:25,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:47:25,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:47:25,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:47:25,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:47:20" (1/3) ... [2022-11-25 23:47:25,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539d5ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:47:25, skipping insertion in model container [2022-11-25 23:47:25,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:21" (2/3) ... [2022-11-25 23:47:25,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539d5ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:47:25, skipping insertion in model container [2022-11-25 23:47:25,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:25" (3/3) ... [2022-11-25 23:47:25,318 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test4-3.i [2022-11-25 23:47:25,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:47:25,369 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:47:25,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:47:25,453 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;@7d00e9bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:47:25,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:47:25,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 133 states have (on average 1.7969924812030076) internal successors, (239), 144 states have internal predecessors, (239), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 23:47:25,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:47:25,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:25,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:25,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:25,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:25,476 INFO L85 PathProgramCache]: Analyzing trace with hash -810098709, now seen corresponding path program 1 times [2022-11-25 23:47:25,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:25,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617990968] [2022-11-25 23:47:25,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:25,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:25,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:25,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617990968] [2022-11-25 23:47:25,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617990968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:25,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:25,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:25,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418453155] [2022-11-25 23:47:25,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:25,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:25,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:25,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:25,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:25,856 INFO L87 Difference]: Start difference. First operand has 153 states, 133 states have (on average 1.7969924812030076) internal successors, (239), 144 states have internal predecessors, (239), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:28,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:28,650 INFO L93 Difference]: Finished difference Result 399 states and 722 transitions. [2022-11-25 23:47:28,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:28,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 23:47:28,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:28,673 INFO L225 Difference]: With dead ends: 399 [2022-11-25 23:47:28,673 INFO L226 Difference]: Without dead ends: 220 [2022-11-25 23:47:28,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:28,681 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 97 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:28,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 365 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 23:47:28,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-25 23:47:28,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-25 23:47:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 23:47:28,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-25 23:47:28,742 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-25 23:47:28,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:28,742 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-25 23:47:28,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-25 23:47:28,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 23:47:28,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:28,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:28,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:47:28,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:28,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:28,748 INFO L85 PathProgramCache]: Analyzing trace with hash 761830316, now seen corresponding path program 1 times [2022-11-25 23:47:28,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:28,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104926595] [2022-11-25 23:47:28,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:28,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:29,096 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:29,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1229739865] [2022-11-25 23:47:29,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:29,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:29,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:29,106 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:29,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:47:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:30,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:47:30,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:30,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:47:30,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:30,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:30,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104926595] [2022-11-25 23:47:30,908 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:47:30,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229739865] [2022-11-25 23:47:30,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229739865] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:47:30,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [308388516] [2022-11-25 23:47:30,950 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-25 23:47:30,950 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:47:30,955 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:47:30,962 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:47:30,963 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:47:31,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:31,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,159 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:47:31,161 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-25 23:47:31,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,190 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 [2022-11-25 23:47:31,273 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 23:47:31,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 23:47:31,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,304 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 [2022-11-25 23:47:31,363 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:31,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 23:47:31,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:47:31,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 23:47:32,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 23:47:32,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:47:32,161 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 23:47:32,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 23:47:32,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,183 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 [2022-11-25 23:47:32,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:32,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,217 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:47:32,218 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-25 23:47:32,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,242 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 [2022-11-25 23:47:32,297 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:32,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 23:47:32,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 23:47:32,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:32,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 23:47:32,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:47:32,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:47:32,965 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:47:40,914 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:47:48,284 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:47:48,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [308388516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:48,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:47:48,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-25 23:47:48,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23426283] [2022-11-25 23:47:48,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:48,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:47:48,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:48,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:47:48,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-25 23:47:48,294 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:51,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:47:53,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:47:55,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:48:00,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:48:01,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:48:04,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:04,231 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-25 23:48:04,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:48:04,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-25 23:48:04,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:04,233 INFO L225 Difference]: With dead ends: 265 [2022-11-25 23:48:04,233 INFO L226 Difference]: Without dead ends: 140 [2022-11-25 23:48:04,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-25 23:48:04,236 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:04,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 461 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 3 Unknown, 0 Unchecked, 14.8s Time] [2022-11-25 23:48:04,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-25 23:48:04,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-25 23:48:04,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 23:48:04,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-25 23:48:04,270 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-25 23:48:04,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:04,271 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-25 23:48:04,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:04,271 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-25 23:48:04,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 23:48:04,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:04,273 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:04,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:04,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:04,479 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:48:04,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:04,480 INFO L85 PathProgramCache]: Analyzing trace with hash 583681991, now seen corresponding path program 1 times [2022-11-25 23:48:04,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:04,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618486611] [2022-11-25 23:48:04,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:04,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:04,654 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:04,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658984839] [2022-11-25 23:48:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:04,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:04,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:04,700 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:04,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:48:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:05,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:48:05,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:05,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:06,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:06,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618486611] [2022-11-25 23:48:06,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:06,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658984839] [2022-11-25 23:48:06,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658984839] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:06,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [522380388] [2022-11-25 23:48:06,198 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-25 23:48:06,203 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:06,203 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:06,204 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:06,204 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:06,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:06,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,357 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:48:06,358 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-25 23:48:06,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,375 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 [2022-11-25 23:48:06,416 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 23:48:06,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 23:48:06,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,444 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 [2022-11-25 23:48:06,490 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:06,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 23:48:06,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 23:48:06,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 23:48:06,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:48:06,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:48:07,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 23:48:07,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 23:48:07,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 23:48:07,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 23:48:07,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 23:48:07,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 23:48:07,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 23:48:07,436 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 23:48:07,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 23:48:07,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-25 23:48:07,802 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:07,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 23:48:07,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2022-11-25 23:48:07,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2022-11-25 23:48:07,867 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 [2022-11-25 23:48:07,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:07,880 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 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 23:48:08,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 23:48:08,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 23:48:08,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:48:08,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:48:08,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 23:48:08,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 23:48:08,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 23:48:08,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 23:48:08,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 23:48:08,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 23:48:08,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 23:48:08,810 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 23:48:08,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 23:48:08,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-25 23:48:09,227 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-25 23:48:09,354 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:15,296 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:22,847 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:32,649 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:44,770 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:56,633 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:57,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [522380388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:57,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:48:57,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-25 23:48:57,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44816949] [2022-11-25 23:48:57,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:57,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 23:48:57,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:57,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 23:48:57,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-25 23:48:57,180 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:48:59,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:01,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:03,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:06,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:08,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:10,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:12,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:14,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:16,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:24,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:27,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:30,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:49:32,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:34,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:49:37,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:38,320 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-25 23:49:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:49:38,320 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2022-11-25 23:49:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:38,322 INFO L225 Difference]: With dead ends: 267 [2022-11-25 23:49:38,322 INFO L226 Difference]: Without dead ends: 142 [2022-11-25 23:49:38,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 47.8s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-25 23:49:38,325 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:38,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 749 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 14 Unknown, 0 Unchecked, 41.1s Time] [2022-11-25 23:49:38,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-25 23:49:38,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-25 23:49:38,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-25 23:49:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-25 23:49:38,364 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-25 23:49:38,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:49:38,364 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-25 23:49:38,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:49:38,365 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-25 23:49:38,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 23:49:38,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:38,367 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:49:38,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:49:38,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:49:38,580 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:49:38,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:38,580 INFO L85 PathProgramCache]: Analyzing trace with hash 501515405, now seen corresponding path program 1 times [2022-11-25 23:49:38,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:38,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768069456] [2022-11-25 23:49:38,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:38,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:38,739 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:49:38,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2006794935] [2022-11-25 23:49:38,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:38,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:49:38,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:49:38,741 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:49:38,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fb4b2a-03b4-44b0-99f8-1917af041853/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:49:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:39,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:49:40,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:49:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:49:40,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:49:40,323 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:49:40,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:49:40,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768069456] [2022-11-25 23:49:40,323 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:49:40,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006794935] [2022-11-25 23:49:40,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006794935] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:49:40,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2064642066] [2022-11-25 23:49:40,328 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-25 23:49:40,328 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:49:40,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:49:40,329 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:49:40,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:49:40,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,419 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 22 treesize of output 7 [2022-11-25 23:49:40,465 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 23:49:40,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 23:49:40,515 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:49:40,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 23:49:40,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2022-11-25 23:49:40,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,549 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:40,550 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 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 23:49:40,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:49:40,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 23:49:40,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 23:49:41,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:49:41,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 23:49:41,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 23:49:41,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 23:49:41,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 23:49:41,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 23:49:41,374 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 23:49:41,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-25 23:49:41,483 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 23:49:41,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 23:49:41,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 23:49:41,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 23:49:41,774 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 [2022-11-25 23:49:41,779 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 [2022-11-25 23:49:41,783 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 [2022-11-25 23:49:41,837 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-25 23:49:41,837 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 53 treesize of output 56 [2022-11-25 23:49:41,876 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:49:41,876 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 47 treesize of output 50 [2022-11-25 23:49:41,909 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:49:41,909 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 43 treesize of output 46 [2022-11-25 23:49:41,944 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 14 treesize of output 10 [2022-11-25 23:49:41,950 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 14 treesize of output 10 [2022-11-25 23:49:41,957 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 16 treesize of output 12 [2022-11-25 23:49:42,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 23:49:42,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-25 23:49:42,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 23:49:42,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:42,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 23:49:42,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-25 23:49:42,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 23:49:43,285 INFO L217 Elim1Store]: Index analysis took 402 ms [2022-11-25 23:49:47,875 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-25 23:49:47,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-25 23:49:48,681 INFO L217 Elim1Store]: Index analysis took 596 ms [2022-11-25 23:49:50,575 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-25 23:49:50,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-25 23:50:00,887 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:50:00,887 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-25 23:50:00,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-25 23:50:39,117 WARN L233 SmtUtils]: Spent 38.06s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:50:39,118 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-25 23:50:39,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1824 [2022-11-25 23:50:40,148 INFO L217 Elim1Store]: Index analysis took 748 ms [2022-11-25 23:51:12,369 WARN L233 SmtUtils]: Spent 31.51s on a formula simplification. DAG size of input: 252 DAG size of output: 150 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:51:12,370 INFO L321 Elim1Store]: treesize reduction 2438, result has 32.1 percent of original size [2022-11-25 23:51:12,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 2093 [2022-11-25 23:51:13,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:13,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:13,703 INFO L217 Elim1Store]: Index analysis took 495 ms [2022-11-25 23:51:13,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 89 [2022-11-25 23:51:13,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:13,889 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 40 treesize of output 30 [2022-11-25 23:51:13,949 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:51:14,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:14,537 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 71 [2022-11-25 23:51:14,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:14,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:14,754 INFO L217 Elim1Store]: Index analysis took 121 ms [2022-11-25 23:51:14,756 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2022-11-25 23:51:16,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:16,005 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-11-25 23:51:16,006 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 19 treesize of output 13 [2022-11-25 23:54:44,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:44,981 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 19 treesize of output 13