./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:18:22,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:18:22,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:18:22,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:18:22,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:18:22,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:18:22,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:18:22,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:18:22,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:18:22,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:18:22,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:18:22,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:18:22,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:18:22,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:18:22,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:18:22,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:18:22,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:18:22,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:18:22,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:18:22,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:18:22,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:18:22,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:18:22,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:18:22,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:18:22,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:18:22,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:18:22,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:18:22,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:18:22,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:18:22,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:18:22,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:18:22,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:18:22,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:18:22,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:18:22,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:18:22,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:18:22,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:18:22,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:18:22,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:18:22,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:18:22,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:18:22,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:18:22,155 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:18:22,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:18:22,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:18:22,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:18:22,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:18:22,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:18:22,158 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:18:22,158 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:18:22,158 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:18:22,158 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:18:22,159 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:18:22,160 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:18:22,160 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:18:22,160 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:18:22,160 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:18:22,161 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:18:22,161 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:18:22,161 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:18:22,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:18:22,162 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:18:22,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:18:22,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:18:22,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:18:22,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:18:22,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:18:22,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:18:22,164 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:18:22,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:18:22,164 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:18:22,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:18:22,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:18:22,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:18:22,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:18:22,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:18:22,166 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:18:22,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:18:22,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:18:22,167 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:18:22,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:18:22,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:18:22,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:18:22,169 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_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 [2022-11-22 02:18:22,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:18:22,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:18:22,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:18:22,560 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:18:22,560 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:18:22,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2022-11-22 02:18:25,607 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:18:25,990 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:18:25,991 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2022-11-22 02:18:26,017 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/data/05edc381d/a522674893af4b218808bb476e43777b/FLAG702d259b4 [2022-11-22 02:18:26,035 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/data/05edc381d/a522674893af4b218808bb476e43777b [2022-11-22 02:18:26,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:18:26,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:18:26,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:18:26,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:18:26,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:18:26,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243f4c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26, skipping insertion in model container [2022-11-22 02:18:26,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:18:26,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:18:26,558 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_646ff680-d393-4cdd-aae6-780b44175dcc/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26271,26284] [2022-11-22 02:18:26,568 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_646ff680-d393-4cdd-aae6-780b44175dcc/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26396,26409] [2022-11-22 02:18:26,570 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_646ff680-d393-4cdd-aae6-780b44175dcc/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26511,26524] [2022-11-22 02:18:26,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:18:26,607 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:18:26,675 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_646ff680-d393-4cdd-aae6-780b44175dcc/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26271,26284] [2022-11-22 02:18:26,678 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_646ff680-d393-4cdd-aae6-780b44175dcc/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26396,26409] [2022-11-22 02:18:26,679 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_646ff680-d393-4cdd-aae6-780b44175dcc/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26511,26524] [2022-11-22 02:18:26,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:18:26,738 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:18:26,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26 WrapperNode [2022-11-22 02:18:26,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:18:26,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:18:26,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:18:26,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:18:26,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,826 INFO L138 Inliner]: procedures = 142, calls = 62, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 161 [2022-11-22 02:18:26,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:18:26,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:18:26,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:18:26,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:18:26,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,890 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:18:26,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:18:26,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:18:26,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:18:26,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (1/1) ... [2022-11-22 02:18:26,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:18:26,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:18:26,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:18:26,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:18:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-11-22 02:18:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-11-22 02:18:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2022-11-22 02:18:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2022-11-22 02:18:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:18:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:18:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:18:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2022-11-22 02:18:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2022-11-22 02:18:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:18:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:18:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:18:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:18:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-11-22 02:18:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-11-22 02:18:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:18:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:18:27,216 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:18:27,221 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:18:27,562 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:18:27,707 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:18:27,707 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-22 02:18:27,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:18:27 BoogieIcfgContainer [2022-11-22 02:18:27,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:18:27,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:18:27,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:18:27,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:18:27,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:18:26" (1/3) ... [2022-11-22 02:18:27,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a83936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:18:27, skipping insertion in model container [2022-11-22 02:18:27,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:26" (2/3) ... [2022-11-22 02:18:27,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a83936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:18:27, skipping insertion in model container [2022-11-22 02:18:27,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:18:27" (3/3) ... [2022-11-22 02:18:27,721 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2022-11-22 02:18:27,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:18:27,767 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 02:18:27,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:18:27,850 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;@f9b70fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:18:27,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 02:18:27,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 34 states have internal predecessors, (43), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-22 02:18:27,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:18:27,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:27,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:18:27,870 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:18:27,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:27,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1976968745, now seen corresponding path program 1 times [2022-11-22 02:18:27,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:27,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396119789] [2022-11-22 02:18:27,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:27,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:28,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:18:28,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:28,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396119789] [2022-11-22 02:18:28,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396119789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:28,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:18:28,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:18:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614246600] [2022-11-22 02:18:28,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:28,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:18:28,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:28,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:18:28,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:18:28,503 INFO L87 Difference]: Start difference. First operand has 46 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 34 states have internal predecessors, (43), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:18:28,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:28,740 INFO L93 Difference]: Finished difference Result 124 states and 161 transitions. [2022-11-22 02:18:28,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:18:28,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 02:18:28,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:28,753 INFO L225 Difference]: With dead ends: 124 [2022-11-22 02:18:28,753 INFO L226 Difference]: Without dead ends: 79 [2022-11-22 02:18:28,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:18:28,766 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 42 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:28,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 122 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:18:28,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-22 02:18:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 65. [2022-11-22 02:18:28,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 49 states have internal predecessors, (63), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-22 02:18:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2022-11-22 02:18:28,834 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 6 [2022-11-22 02:18:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:28,835 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2022-11-22 02:18:28,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:18:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2022-11-22 02:18:28,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:18:28,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:28,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:18:28,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:18:28,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:18:28,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:28,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1295928281, now seen corresponding path program 1 times [2022-11-22 02:18:28,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:28,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220855127] [2022-11-22 02:18:28,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:28,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:18:28,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:28,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220855127] [2022-11-22 02:18:28,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220855127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:28,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:18:28,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:18:28,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288498266] [2022-11-22 02:18:28,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:28,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:18:28,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:28,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:18:28,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:18:28,952 INFO L87 Difference]: Start difference. First operand 65 states and 85 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:18:29,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:29,099 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2022-11-22 02:18:29,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:18:29,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-22 02:18:29,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:29,103 INFO L225 Difference]: With dead ends: 75 [2022-11-22 02:18:29,103 INFO L226 Difference]: Without dead ends: 73 [2022-11-22 02:18:29,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:18:29,105 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:29,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:18:29,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-22 02:18:29,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-22 02:18:29,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 55 states have internal predecessors, (69), 11 states have call successors, (11), 5 states have call predecessors, (11), 7 states have return successors, (17), 13 states have call predecessors, (17), 11 states have call successors, (17) [2022-11-22 02:18:29,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 97 transitions. [2022-11-22 02:18:29,143 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 97 transitions. Word has length 11 [2022-11-22 02:18:29,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:29,143 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 97 transitions. [2022-11-22 02:18:29,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:18:29,144 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 97 transitions. [2022-11-22 02:18:29,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 02:18:29,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:29,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:18:29,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:18:29,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:18:29,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash -349854364, now seen corresponding path program 1 times [2022-11-22 02:18:29,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:29,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818738156] [2022-11-22 02:18:29,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:29,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:18:29,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:29,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818738156] [2022-11-22 02:18:29,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818738156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:29,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:18:29,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:18:29,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035447876] [2022-11-22 02:18:29,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:29,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:18:29,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:29,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:18:29,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:18:29,324 INFO L87 Difference]: Start difference. First operand 73 states and 97 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:18:29,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:29,457 INFO L93 Difference]: Finished difference Result 125 states and 161 transitions. [2022-11-22 02:18:29,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:18:29,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-22 02:18:29,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:29,459 INFO L225 Difference]: With dead ends: 125 [2022-11-22 02:18:29,459 INFO L226 Difference]: Without dead ends: 57 [2022-11-22 02:18:29,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:18:29,461 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 12 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:29,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 113 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:18:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-22 02:18:29,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2022-11-22 02:18:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 38 states have internal predecessors, (43), 9 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-11-22 02:18:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2022-11-22 02:18:29,470 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 12 [2022-11-22 02:18:29,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:29,471 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2022-11-22 02:18:29,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:18:29,471 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2022-11-22 02:18:29,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 02:18:29,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:29,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:18:29,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:18:29,472 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:18:29,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:29,473 INFO L85 PathProgramCache]: Analyzing trace with hash -462529757, now seen corresponding path program 1 times [2022-11-22 02:18:29,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:29,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23316201] [2022-11-22 02:18:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:29,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:18:30,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:30,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23316201] [2022-11-22 02:18:30,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23316201] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:18:30,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942390980] [2022-11-22 02:18:30,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:30,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:18:30,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:18:30,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:18:30,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:18:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:30,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-22 02:18:30,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:18:30,336 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 02:18:30,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 02:18:30,669 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-22 02:18:30,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 281 [2022-11-22 02:18:30,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:18:30,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:18:30,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:18:31,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:18:31,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:18:31,478 INFO L321 Elim1Store]: treesize reduction 28, result has 47.2 percent of original size [2022-11-22 02:18:31,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 394 treesize of output 417 [2022-11-22 02:18:31,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:31,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:31,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:31,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:31,759 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 02:18:31,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 147 treesize of output 115 [2022-11-22 02:18:31,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:31,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:31,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:32,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-22 02:18:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:18:32,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:18:32,621 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:18:32,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1502 treesize of output 1471 [2022-11-22 02:18:32,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1814 treesize of output 1750 [2022-11-22 02:18:32,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1926 treesize of output 1894 [2022-11-22 02:18:32,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1894 treesize of output 1886 [2022-11-22 02:18:32,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1886 treesize of output 1870 [2022-11-22 02:18:32,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:18:32,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:32,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-11-22 02:18:32,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:18:33,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942390980] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:18:33,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1569815315] [2022-11-22 02:18:33,172 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-22 02:18:33,173 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:18:33,178 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:18:33,185 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:18:33,186 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:18:33,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:18:33,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:18:33,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,545 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-22 02:18:33,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-22 02:18:33,602 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-22 02:18:33,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 19 [2022-11-22 02:18:33,636 INFO L321 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-22 02:18:33,637 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 39 treesize of output 31 [2022-11-22 02:18:33,668 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-22 02:18:33,669 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 33 treesize of output 31 [2022-11-22 02:18:33,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,765 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-22 02:18:33,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-22 02:18:33,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:18:33,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:18:33,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:18:33,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:18:33,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:33,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:33,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:33,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:33,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:33,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:33,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:34,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:34,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:34,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:34,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:34,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:34,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:34,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:34,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:34,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:34,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:34,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:34,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:34,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:34,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:34,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:34,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:34,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:34,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:34,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:34,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:34,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:34,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:35,583 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 27 for LOIs [2022-11-22 02:18:35,588 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 34 for LOIs [2022-11-22 02:18:35,630 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 42 for LOIs [2022-11-22 02:18:35,675 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:18:39,559 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '915#(and (<= 0 (+ |ULTIMATE.start_foo_~N~0#1| 2147483648)) (= |ULTIMATE.start_ldv_set_empty_#in~s#1.offset| |~#mutexes~0.offset|) (= |ULTIMATE.start_foo_~__mptr~5#1.base| (select (select |#memory_$Pointer$.base| |~#drvlist~0.base|) |~#drvlist~0.offset|)) (= |ULTIMATE.start_foo_~__mptr~7#1.offset| (select (select |#memory_$Pointer$.offset| |~#drvlist~0.base|) |~#drvlist~0.offset|)) (= |ULTIMATE.start_ldv_list_empty_~head#1.base| |ULTIMATE.start_ldv_list_empty_#in~head#1.base|) (= |ULTIMATE.start_ldv_list_empty_#res#1| |ULTIMATE.start_ldv_set_empty_#res#1|) (<= |ULTIMATE.start_foo_~N~0#1| |ULTIMATE.start_foo_~i~0#1|) (= (select (select |#memory_$Pointer$.base| |~#drvlist~0.base|) |~#drvlist~0.offset|) |ULTIMATE.start_foo_~__mptr~7#1.base|) (= (ite (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_ldv_list_empty_~head#1.base|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|) (= |ULTIMATE.start_ldv_list_empty_~head#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ldv_list_empty_~head#1.base|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|))) 1 0) |ULTIMATE.start_ldv_list_empty_#res#1|) (<= |#NULL.offset| 0) (<= 4 |~#drvlist~0.base|) (= |ULTIMATE.start_ldv_set_empty_#res#1| 0) (= |~#mutexes~0.base| |ULTIMATE.start_ldv_set_empty_#in~s#1.base|) (= |ULTIMATE.start_ldv_set_empty_#in~s#1.offset| |ULTIMATE.start_ldv_set_empty_~s#1.offset|) (= |ULTIMATE.start_foo_~__mptr~5#1.offset| |~#drvlist~0.offset|) (<= 3 |~#mutexes~0.base|) (= |ULTIMATE.start_ldv_set_empty_~s#1.base| |ULTIMATE.start_ldv_list_empty_#in~head#1.base|) (= |ULTIMATE.start_foo_~__mptr~7#1.offset| (+ 8 |ULTIMATE.start_foo_~me~1#1.offset|)) (= |ULTIMATE.start_ldv_list_empty_#in~head#1.offset| |ULTIMATE.start_ldv_list_empty_~head#1.offset|) (<= |~#drvlist~0.base| 4) (= |ULTIMATE.start_ldv_set_empty_~s#1.offset| |ULTIMATE.start_ldv_list_empty_#in~head#1.offset|) (= |~#drvlist~0.base| |ULTIMATE.start_foo_~me~1#1.base|) (= |ULTIMATE.start_foo_~__mptr~5#1.base| |~#drvlist~0.base|) (= |ULTIMATE.start_ldv_set_empty_~s#1.base| |ULTIMATE.start_ldv_set_empty_#in~s#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= |~#mutexes~0.base| 3) (or (and (= |~#drvlist~0.offset| 0) (= |~#mutexes~0.offset| 0) (= |ULTIMATE.start_foo_~i~0#1| 0) (= |#NULL.base| 0)) (and (= |~#drvlist~0.offset| 0) (= |ULTIMATE.start_foo_~me~0#1.offset| 0) (= |~#mutexes~0.offset| 0) (= |#NULL.base| 0))) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_foo_~__mptr~5#1.offset| (select (select |#memory_$Pointer$.offset| |~#drvlist~0.base|) |~#drvlist~0.offset|)) (<= 0 |ULTIMATE.start_foo_~i~0#1|))' at error location [2022-11-22 02:18:39,560 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:18:39,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:18:39,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 32 [2022-11-22 02:18:39,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329406644] [2022-11-22 02:18:39,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:18:39,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-22 02:18:39,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:39,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-22 02:18:39,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=2053, Unknown=6, NotChecked=0, Total=2256 [2022-11-22 02:18:39,563 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 32 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-22 02:18:41,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:41,692 INFO L93 Difference]: Finished difference Result 154 states and 196 transitions. [2022-11-22 02:18:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 02:18:41,693 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 19 [2022-11-22 02:18:41,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:41,696 INFO L225 Difference]: With dead ends: 154 [2022-11-22 02:18:41,696 INFO L226 Difference]: Without dead ends: 136 [2022-11-22 02:18:41,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 799 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=439, Invalid=3715, Unknown=6, NotChecked=0, Total=4160 [2022-11-22 02:18:41,699 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 508 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:41,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 416 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 02:18:41,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-22 02:18:41,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 92. [2022-11-22 02:18:41,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 70 states have internal predecessors, (87), 14 states have call successors, (14), 8 states have call predecessors, (14), 10 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2022-11-22 02:18:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 121 transitions. [2022-11-22 02:18:41,752 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 121 transitions. Word has length 19 [2022-11-22 02:18:41,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:41,752 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 121 transitions. [2022-11-22 02:18:41,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-22 02:18:41,754 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 121 transitions. [2022-11-22 02:18:41,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-22 02:18:41,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:41,760 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] [2022-11-22 02:18:41,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:18:41,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-22 02:18:41,966 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:18:41,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:41,966 INFO L85 PathProgramCache]: Analyzing trace with hash 983498160, now seen corresponding path program 1 times [2022-11-22 02:18:41,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:41,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274348635] [2022-11-22 02:18:41,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:41,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:44,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:18:44,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:44,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274348635] [2022-11-22 02:18:44,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274348635] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:18:44,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171956864] [2022-11-22 02:18:44,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:44,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:18:44,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:18:44,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:18:44,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:18:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:44,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 113 conjunts are in the unsatisfiable core [2022-11-22 02:18:44,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:18:44,817 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 02:18:44,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 02:18:44,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 02:18:44,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:18:45,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-22 02:18:45,405 INFO L321 Elim1Store]: treesize reduction 50, result has 29.6 percent of original size [2022-11-22 02:18:45,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 57 [2022-11-22 02:18:45,444 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-22 02:18:45,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 64 [2022-11-22 02:18:45,464 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:18:45,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 42 [2022-11-22 02:18:45,485 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:18:45,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-22 02:18:45,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:18:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:18:45,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:18:51,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171956864] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:18:51,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1196393292] [2022-11-22 02:18:51,458 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-22 02:18:51,458 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:18:51,459 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:18:51,459 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:18:51,459 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:18:51,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:18:51,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:18:51,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:51,907 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-22 02:18:51,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-22 02:18:51,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:52,015 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-22 02:18:52,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-22 02:18:52,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:52,160 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-22 02:18:52,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-22 02:18:52,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:18:52,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:18:52,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:18:52,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:18:52,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:52,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:52,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:52,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:52,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:52,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:52,290 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:18:52,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:52,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:52,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:52,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:52,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:18:52,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:18:52,470 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:18:52,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:52,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:52,652 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:18:52,654 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:18:52,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:52,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:18:52,773 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:18:52,776 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:18:53,836 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 27 for LOIs [2022-11-22 02:18:53,841 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 90 for LOIs [2022-11-22 02:18:53,900 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 34 for LOIs [2022-11-22 02:18:53,946 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 42 for LOIs [2022-11-22 02:18:53,990 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:18:59,214 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1445#(and (= |~#drvlist~0.offset| 0) (= |~#mutexes~0.base| 3) (= |ULTIMATE.start_foo_~me~0#1.offset| 0) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= 1 |ULTIMATE.start_foo_~i~0#1|) (<= 0 |#StackHeapBarrier|) (= 4 |~#drvlist~0.base|) (<= 0 |ULTIMATE.start_foo_~N~0#1|) (= |#NULL.base| 0))' at error location [2022-11-22 02:18:59,214 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:18:59,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 02:18:59,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2022-11-22 02:18:59,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510755010] [2022-11-22 02:18:59,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 02:18:59,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-22 02:18:59,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:59,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-22 02:18:59,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=2324, Unknown=8, NotChecked=0, Total=2550 [2022-11-22 02:18:59,217 INFO L87 Difference]: Start difference. First operand 92 states and 121 transitions. Second operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 20 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-22 02:19:03,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:19:03,302 INFO L93 Difference]: Finished difference Result 246 states and 334 transitions. [2022-11-22 02:19:03,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 02:19:03,303 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 20 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 25 [2022-11-22 02:19:03,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:19:03,305 INFO L225 Difference]: With dead ends: 246 [2022-11-22 02:19:03,306 INFO L226 Difference]: Without dead ends: 165 [2022-11-22 02:19:03,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1519 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=500, Invalid=4747, Unknown=9, NotChecked=0, Total=5256 [2022-11-22 02:19:03,309 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 184 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 96 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:19:03,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 308 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 924 Invalid, 5 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:19:03,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-22 02:19:03,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 127. [2022-11-22 02:19:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 96 states have internal predecessors, (122), 19 states have call successors, (19), 11 states have call predecessors, (19), 14 states have return successors, (26), 20 states have call predecessors, (26), 19 states have call successors, (26) [2022-11-22 02:19:03,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 167 transitions. [2022-11-22 02:19:03,337 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 167 transitions. Word has length 25 [2022-11-22 02:19:03,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:19:03,337 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 167 transitions. [2022-11-22 02:19:03,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 20 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-22 02:19:03,338 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 167 transitions. [2022-11-22 02:19:03,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 02:19:03,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:19:03,339 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:19:03,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 02:19:03,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:19:03,545 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:19:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:19:03,546 INFO L85 PathProgramCache]: Analyzing trace with hash -487816988, now seen corresponding path program 2 times [2022-11-22 02:19:03,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:19:03,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954672983] [2022-11-22 02:19:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:03,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:19:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:09,346 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:19:09,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:19:09,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954672983] [2022-11-22 02:19:09,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954672983] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:19:09,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444869497] [2022-11-22 02:19:09,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:19:09,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:19:09,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:19:09,348 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:19:09,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:19:09,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 02:19:09,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:19:09,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 150 conjunts are in the unsatisfiable core [2022-11-22 02:19:09,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:19:09,964 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:19:09,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 02:19:10,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:10,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 02:19:10,840 INFO L321 Elim1Store]: treesize reduction 56, result has 13.8 percent of original size [2022-11-22 02:19:10,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 377 treesize of output 230 [2022-11-22 02:19:10,872 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:19:10,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 221 [2022-11-22 02:19:10,938 INFO L321 Elim1Store]: treesize reduction 67, result has 26.4 percent of original size [2022-11-22 02:19:10,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 245 treesize of output 226 [2022-11-22 02:19:10,976 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-22 02:19:10,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-11-22 02:19:11,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 154 [2022-11-22 02:19:11,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:19:11,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-22 02:19:11,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:19:11,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 20 [2022-11-22 02:19:11,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-22 02:19:11,522 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 02:19:11,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 02:19:11,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:11,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-22 02:19:12,424 INFO L321 Elim1Store]: treesize reduction 53, result has 39.1 percent of original size [2022-11-22 02:19:12,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 49 [2022-11-22 02:19:12,464 INFO L321 Elim1Store]: treesize reduction 46, result has 35.2 percent of original size [2022-11-22 02:19:12,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 65 [2022-11-22 02:19:12,529 INFO L321 Elim1Store]: treesize reduction 47, result has 42.7 percent of original size [2022-11-22 02:19:12,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 89 treesize of output 108 [2022-11-22 02:19:12,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:19:12,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:19:15,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444869497] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:19:15,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1928662218] [2022-11-22 02:19:15,211 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-22 02:19:15,212 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:19:15,212 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:19:15,212 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:19:15,215 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:19:15,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:19:15,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:19:15,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,493 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-22 02:19:15,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-22 02:19:15,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,663 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-22 02:19:15,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-22 02:19:15,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,766 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-22 02:19:15,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-22 02:19:15,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:15,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:15,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:15,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:15,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:15,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:15,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:15,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:15,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:15,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:15,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:15,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:15,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:16,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:16,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:16,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:16,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:16,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:16,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:16,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:16,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:16,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:16,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:16,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:16,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:16,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:16,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:16,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:16,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:16,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:16,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:16,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:16,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:17,442 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 27 for LOIs [2022-11-22 02:19:17,447 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 39 for LOIs [2022-11-22 02:19:17,469 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 34 for LOIs [2022-11-22 02:19:17,518 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 42 for LOIs [2022-11-22 02:19:17,564 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:19:22,152 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2227#(and (= |~#drvlist~0.offset| 0) (<= 0 (+ |ULTIMATE.start_foo_~N~0#1| 2147483648)) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= 4 |~#drvlist~0.base|) (<= 0 |ULTIMATE.start_foo_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-22 02:19:22,152 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:19:22,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 02:19:22,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2022-11-22 02:19:22,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101161416] [2022-11-22 02:19:22,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 02:19:22,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-22 02:19:22,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:19:22,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-22 02:19:22,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=4056, Unknown=29, NotChecked=0, Total=4422 [2022-11-22 02:19:22,155 INFO L87 Difference]: Start difference. First operand 127 states and 167 transitions. Second operand has 43 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 31 states have internal predecessors, (44), 13 states have call successors, (13), 9 states have call predecessors, (13), 14 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-22 02:19:26,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:19:26,303 INFO L93 Difference]: Finished difference Result 239 states and 316 transitions. [2022-11-22 02:19:26,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-22 02:19:26,304 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 31 states have internal predecessors, (44), 13 states have call successors, (13), 9 states have call predecessors, (13), 14 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 38 [2022-11-22 02:19:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:19:26,306 INFO L225 Difference]: With dead ends: 239 [2022-11-22 02:19:26,306 INFO L226 Difference]: Without dead ends: 158 [2022-11-22 02:19:26,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2853 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=647, Invalid=6978, Unknown=31, NotChecked=0, Total=7656 [2022-11-22 02:19:26,309 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 296 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 158 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:19:26,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 284 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 895 Invalid, 23 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 02:19:26,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-22 02:19:26,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 97. [2022-11-22 02:19:26,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 67 states have (on average 1.328358208955224) internal successors, (89), 73 states have internal predecessors, (89), 15 states have call successors, (15), 10 states have call predecessors, (15), 12 states have return successors, (19), 14 states have call predecessors, (19), 15 states have call successors, (19) [2022-11-22 02:19:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 123 transitions. [2022-11-22 02:19:26,332 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 123 transitions. Word has length 38 [2022-11-22 02:19:26,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:19:26,332 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 123 transitions. [2022-11-22 02:19:26,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 31 states have internal predecessors, (44), 13 states have call successors, (13), 9 states have call predecessors, (13), 14 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-22 02:19:26,333 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 123 transitions. [2022-11-22 02:19:26,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-22 02:19:26,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:19:26,334 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:19:26,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:19:26,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:19:26,540 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:19:26,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:19:26,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1497273319, now seen corresponding path program 1 times [2022-11-22 02:19:26,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:19:26,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074317142] [2022-11-22 02:19:26,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:26,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:19:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 02:19:26,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:19:26,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074317142] [2022-11-22 02:19:26,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074317142] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:19:26,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429926858] [2022-11-22 02:19:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:26,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:19:26,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:19:26,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:19:26,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:19:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:26,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:19:26,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:19:26,851 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:19:26,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:19:26,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429926858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:19:26,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:19:26,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2022-11-22 02:19:26,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805334162] [2022-11-22 02:19:26,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:19:26,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:19:26,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:19:26,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:19:26,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:19:26,854 INFO L87 Difference]: Start difference. First operand 97 states and 123 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 02:19:26,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:19:26,958 INFO L93 Difference]: Finished difference Result 185 states and 237 transitions. [2022-11-22 02:19:26,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:19:26,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2022-11-22 02:19:26,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:19:26,961 INFO L225 Difference]: With dead ends: 185 [2022-11-22 02:19:26,961 INFO L226 Difference]: Without dead ends: 105 [2022-11-22 02:19:26,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:19:26,962 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:19:26,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:19:26,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-22 02:19:26,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2022-11-22 02:19:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 72 states have (on average 1.3055555555555556) internal successors, (94), 77 states have internal predecessors, (94), 15 states have call successors, (15), 10 states have call predecessors, (15), 13 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-22 02:19:26,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 129 transitions. [2022-11-22 02:19:26,987 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 129 transitions. Word has length 42 [2022-11-22 02:19:26,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:19:26,989 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 129 transitions. [2022-11-22 02:19:26,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 02:19:26,990 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 129 transitions. [2022-11-22 02:19:26,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-22 02:19:26,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:19:27,000 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:19:27,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:19:27,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:19:27,208 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:19:27,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:19:27,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1110778976, now seen corresponding path program 1 times [2022-11-22 02:19:27,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:19:27,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283871225] [2022-11-22 02:19:27,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:27,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:19:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:28,993 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:19:28,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:19:28,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283871225] [2022-11-22 02:19:28,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283871225] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:19:28,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571327551] [2022-11-22 02:19:28,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:28,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:19:28,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:19:28,996 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:19:28,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:19:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:29,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-22 02:19:29,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:19:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:19:29,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:19:30,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2022-11-22 02:19:30,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2022-11-22 02:19:30,402 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:19:30,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571327551] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:19:30,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1461218185] [2022-11-22 02:19:30,408 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-22 02:19:30,409 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:19:30,409 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:19:30,409 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:19:30,410 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:19:30,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:19:30,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:19:30,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:30,737 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-22 02:19:30,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-22 02:19:30,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:30,900 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-22 02:19:30,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-22 02:19:30,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,034 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-22 02:19:31,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-22 02:19:31,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:31,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:31,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:31,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:31,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:31,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:31,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:31,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:31,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:31,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:31,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:31,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:31,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:31,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:31,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:31,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:31,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:19:31,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:31,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:31,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:31,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:31,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:31,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:31,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:32,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:33,816 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 27 for LOIs [2022-11-22 02:19:33,820 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 24 for LOIs [2022-11-22 02:19:33,863 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 34 for LOIs [2022-11-22 02:19:33,906 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 42 for LOIs [2022-11-22 02:19:33,953 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:19:39,645 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3569#(and (= |~#drvlist~0.offset| 0) (<= 0 (+ |ULTIMATE.start_foo_~N~0#1| 2147483648)) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= 4 |~#drvlist~0.base|) (<= 0 |ULTIMATE.start_foo_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-22 02:19:39,645 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:19:39,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:19:39,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 8] total 33 [2022-11-22 02:19:39,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649435408] [2022-11-22 02:19:39,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:19:39,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-22 02:19:39,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:19:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-22 02:19:39,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=2848, Unknown=0, NotChecked=0, Total=3080 [2022-11-22 02:19:39,649 INFO L87 Difference]: Start difference. First operand 103 states and 129 transitions. Second operand has 33 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 28 states have internal predecessors, (74), 10 states have call successors, (17), 7 states have call predecessors, (17), 12 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2022-11-22 02:19:43,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:19:43,975 INFO L93 Difference]: Finished difference Result 284 states and 357 transitions. [2022-11-22 02:19:43,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-22 02:19:43,976 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 28 states have internal predecessors, (74), 10 states have call successors, (17), 7 states have call predecessors, (17), 12 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) Word has length 43 [2022-11-22 02:19:43,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:19:43,978 INFO L225 Difference]: With dead ends: 284 [2022-11-22 02:19:43,978 INFO L226 Difference]: Without dead ends: 180 [2022-11-22 02:19:43,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 99 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2383 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=862, Invalid=7694, Unknown=0, NotChecked=0, Total=8556 [2022-11-22 02:19:43,982 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 295 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:19:43,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 371 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-22 02:19:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-22 02:19:44,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 114. [2022-11-22 02:19:44,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 81 states have (on average 1.271604938271605) internal successors, (103), 86 states have internal predecessors, (103), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2022-11-22 02:19:44,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2022-11-22 02:19:44,021 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 43 [2022-11-22 02:19:44,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:19:44,021 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2022-11-22 02:19:44,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 28 states have internal predecessors, (74), 10 states have call successors, (17), 7 states have call predecessors, (17), 12 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2022-11-22 02:19:44,022 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2022-11-22 02:19:44,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-22 02:19:44,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:19:44,023 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:19:44,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 02:19:44,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:19:44,232 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:19:44,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:19:44,232 INFO L85 PathProgramCache]: Analyzing trace with hash -779276848, now seen corresponding path program 1 times [2022-11-22 02:19:44,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:19:44,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532659265] [2022-11-22 02:19:44,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:44,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:19:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:56,208 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:19:56,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:19:56,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532659265] [2022-11-22 02:19:56,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532659265] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:19:56,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151778593] [2022-11-22 02:19:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:56,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:19:56,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:19:56,210 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:19:56,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 02:19:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:56,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 156 conjunts are in the unsatisfiable core [2022-11-22 02:19:56,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:19:56,770 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:19:56,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 02:19:56,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:19:57,501 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-22 02:19:57,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 281 [2022-11-22 02:19:57,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:19:57,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:19:57,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:19:58,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:19:58,542 INFO L321 Elim1Store]: treesize reduction 91, result has 31.6 percent of original size [2022-11-22 02:19:58,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 518 treesize of output 508 [2022-11-22 02:19:58,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:58,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:58,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:19:58,978 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:19:58,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 11 [2022-11-22 02:19:59,343 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-22 02:19:59,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2022-11-22 02:19:59,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:19:59,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:19:59,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:20:00,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:00,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 186 [2022-11-22 02:20:00,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:00,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:00,621 INFO L321 Elim1Store]: treesize reduction 39, result has 29.1 percent of original size [2022-11-22 02:20:00,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 215 treesize of output 253 [2022-11-22 02:20:00,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:00,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:00,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:00,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:00,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 11 [2022-11-22 02:20:04,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 483 treesize of output 355 [2022-11-22 02:20:05,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 02:20:05,503 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-22 02:20:05,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-22 02:20:05,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:05,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2022-11-22 02:20:05,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-22 02:20:05,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:05,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-22 02:20:05,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:06,558 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-22 02:20:06,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 39 [2022-11-22 02:20:06,595 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-22 02:20:06,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 44 [2022-11-22 02:20:06,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:06,659 INFO L321 Elim1Store]: treesize reduction 55, result has 32.9 percent of original size [2022-11-22 02:20:06,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 68 treesize of output 83 [2022-11-22 02:20:06,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:06,712 INFO L321 Elim1Store]: treesize reduction 53, result has 39.1 percent of original size [2022-11-22 02:20:06,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 66 [2022-11-22 02:20:06,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:06,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:06,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-11-22 02:20:06,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2022-11-22 02:20:06,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-11-22 02:20:07,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2022-11-22 02:20:07,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2022-11-22 02:20:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:20:07,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:20:08,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151778593] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:20:08,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [431183099] [2022-11-22 02:20:08,352 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-22 02:20:08,353 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:20:08,353 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:20:08,353 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:20:08,354 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:20:08,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:20:08,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:20:08,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:08,605 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-22 02:20:08,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-22 02:20:08,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:08,734 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-22 02:20:08,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-22 02:20:08,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:08,888 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-22 02:20:08,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-22 02:20:08,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:08,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:08,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:08,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:08,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:08,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:08,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:20:08,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:08,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:08,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:20:09,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:20:09,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:20:09,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:20:09,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:20:09,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:20:09,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:09,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:20:09,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:09,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:20:10,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:10,308 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:20:10,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-22 02:20:10,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:20:10,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:10,353 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:20:10,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-22 02:20:10,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:10,400 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:20:10,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2022-11-22 02:20:10,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:10,424 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:20:10,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2022-11-22 02:20:10,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:10,476 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:20:10,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2022-11-22 02:20:10,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:10,504 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:20:10,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2022-11-22 02:20:11,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:20:11,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:11,472 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:20:11,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 192 treesize of output 191 [2022-11-22 02:20:11,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:11,502 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:20:11,503 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 184 treesize of output 183 [2022-11-22 02:20:11,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:11,820 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:20:11,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 348 [2022-11-22 02:20:11,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:11,845 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:20:11,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 344 treesize of output 340 [2022-11-22 02:20:12,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:12,265 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:20:12,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 348 [2022-11-22 02:20:12,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:20:12,288 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:20:12,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 344 treesize of output 340 [2022-11-22 02:20:13,230 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 39 for LOIs [2022-11-22 02:20:13,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:20:13,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:20:13,264 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 41 for LOIs [2022-11-22 02:20:13,277 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 44 for LOIs [2022-11-22 02:20:13,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:13,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:13,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:13,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:20:13,389 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 61 for LOIs [2022-11-22 02:20:13,440 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:20:25,614 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4436#(and (= (+ 8 |ULTIMATE.start_foo_~me~1#1.offset|) |~#drvlist~0.offset|) (= |~#drvlist~0.offset| 0) (<= 0 (+ |ULTIMATE.start_foo_~N~0#1| 2147483648)) (= |ULTIMATE.start_foo_~__mptr~7#1.base| |ULTIMATE.start_foo_~me~1#1.base|) (= |ULTIMATE.start_ldv_set_empty_#in~s#1.offset| |~#mutexes~0.offset|) (= |ULTIMATE.start_foo_~__mptr~7#1.offset| (select (select |#memory_$Pointer$.offset| |~#drvlist~0.base|) |~#drvlist~0.offset|)) (= |ULTIMATE.start_ldv_list_empty_~head#1.base| |ULTIMATE.start_ldv_list_empty_#in~head#1.base|) (= |ULTIMATE.start_ldv_list_empty_#res#1| |ULTIMATE.start_ldv_set_empty_#res#1|) (= (select (select |#memory_$Pointer$.base| |~#drvlist~0.base|) |~#drvlist~0.offset|) |ULTIMATE.start_foo_~__mptr~7#1.base|) (= |~#mutexes~0.base| 3) (= (ite (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_ldv_list_empty_~head#1.base|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|) (= |ULTIMATE.start_ldv_list_empty_~head#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ldv_list_empty_~head#1.base|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|))) 1 0) |ULTIMATE.start_ldv_list_empty_#res#1|) (= |ULTIMATE.start_ldv_set_empty_#res#1| 0) (= |~#mutexes~0.offset| 0) (= |~#mutexes~0.base| |ULTIMATE.start_ldv_set_empty_#in~s#1.base|) (= |ULTIMATE.start_ldv_set_empty_#in~s#1.offset| |ULTIMATE.start_ldv_set_empty_~s#1.offset|) (= |ULTIMATE.start_ldv_set_empty_~s#1.base| |ULTIMATE.start_ldv_list_empty_#in~head#1.base|) (= |ULTIMATE.start_foo_~__mptr~7#1.offset| (+ 8 |ULTIMATE.start_foo_~me~1#1.offset|)) (= |ULTIMATE.start_ldv_list_empty_#in~head#1.offset| |ULTIMATE.start_ldv_list_empty_~head#1.offset|) (= |#NULL.offset| 0) (= |ULTIMATE.start_ldv_set_empty_~s#1.offset| |ULTIMATE.start_ldv_list_empty_#in~head#1.offset|) (= |~#drvlist~0.base| |ULTIMATE.start_foo_~me~1#1.base|) (= |ULTIMATE.start_ldv_set_empty_~s#1.base| |ULTIMATE.start_ldv_set_empty_#in~s#1.base|) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= 4 |~#drvlist~0.base|) (<= 0 |ULTIMATE.start_foo_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-22 02:20:25,614 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:20:25,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 02:20:25,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 24] total 51 [2022-11-22 02:20:25,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642820346] [2022-11-22 02:20:25,615 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 02:20:25,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-11-22 02:20:25,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:25,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-11-22 02:20:25,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=5779, Unknown=72, NotChecked=0, Total=6162 [2022-11-22 02:20:25,617 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 51 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 40 states have internal predecessors, (60), 15 states have call successors, (16), 10 states have call predecessors, (16), 16 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-22 02:20:33,986 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 397 DAG size of output: 391 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:20:41,820 WARN L233 SmtUtils]: Spent 6.64s on a formula simplification. DAG size of input: 409 DAG size of output: 403 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:20:51,843 WARN L233 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 405 DAG size of output: 399 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:21:08,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:08,785 INFO L93 Difference]: Finished difference Result 316 states and 407 transitions. [2022-11-22 02:21:08,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-11-22 02:21:08,786 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 40 states have internal predecessors, (60), 15 states have call successors, (16), 10 states have call predecessors, (16), 16 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 47 [2022-11-22 02:21:08,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:08,788 INFO L225 Difference]: With dead ends: 316 [2022-11-22 02:21:08,788 INFO L226 Difference]: Without dead ends: 313 [2022-11-22 02:21:08,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5645 ImplicationChecksByTransitivity, 53.0s TimeCoverageRelationStatistics Valid=1440, Invalid=18136, Unknown=164, NotChecked=0, Total=19740 [2022-11-22 02:21:08,794 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 771 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 425 mSolverCounterUnsat, 177 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 177 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:08,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 586 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 1891 Invalid, 177 Unknown, 0 Unchecked, 9.6s Time] [2022-11-22 02:21:08,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-11-22 02:21:08,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 149. [2022-11-22 02:21:08,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 113 states have internal predecessors, (138), 20 states have call successors, (20), 14 states have call predecessors, (20), 19 states have return successors, (33), 23 states have call predecessors, (33), 20 states have call successors, (33) [2022-11-22 02:21:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 191 transitions. [2022-11-22 02:21:08,839 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 191 transitions. Word has length 47 [2022-11-22 02:21:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:08,839 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 191 transitions. [2022-11-22 02:21:08,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 40 states have internal predecessors, (60), 15 states have call successors, (16), 10 states have call predecessors, (16), 16 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-22 02:21:08,840 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 191 transitions. [2022-11-22 02:21:08,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-22 02:21:08,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:08,841 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:08,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 02:21:09,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 02:21:09,049 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:21:09,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:09,049 INFO L85 PathProgramCache]: Analyzing trace with hash -177317219, now seen corresponding path program 1 times [2022-11-22 02:21:09,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:09,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949583789] [2022-11-22 02:21:09,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:09,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:15,169 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 02:21:15,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:15,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949583789] [2022-11-22 02:21:15,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949583789] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:21:15,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151672355] [2022-11-22 02:21:15,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:15,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:15,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:21:15,171 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:21:15,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 02:21:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:15,419 WARN L261 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 347 conjunts are in the unsatisfiable core [2022-11-22 02:21:15,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:21:15,755 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:21:15,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 33 [2022-11-22 02:21:16,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:21:16,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:21:16,561 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-11-22 02:21:16,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 200 treesize of output 146 [2022-11-22 02:21:16,679 INFO L321 Elim1Store]: treesize reduction 44, result has 44.3 percent of original size [2022-11-22 02:21:16,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 138 treesize of output 129 [2022-11-22 02:21:16,793 INFO L321 Elim1Store]: treesize reduction 122, result has 22.3 percent of original size [2022-11-22 02:21:16,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 103 treesize of output 155 [2022-11-22 02:21:16,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:21:16,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:21:17,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2022-11-22 02:21:17,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2022-11-22 02:21:17,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:21:17,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:21:17,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:21:17,547 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:21:17,575 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:21:17,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 174 [2022-11-22 02:21:17,852 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 02:21:17,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 3 [2022-11-22 02:21:17,936 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 02:21:17,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 3 [2022-11-22 02:21:17,968 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 02:21:17,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 3 [2022-11-22 02:21:18,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:21:18,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 200 [2022-11-22 02:21:18,425 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-22 02:21:18,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 7 [2022-11-22 02:21:18,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:21:18,599 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:21:18,677 INFO L321 Elim1Store]: treesize reduction 30, result has 34.8 percent of original size [2022-11-22 02:21:18,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 41 [2022-11-22 02:21:18,695 INFO L321 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2022-11-22 02:21:18,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 22 [2022-11-22 02:21:18,916 INFO L321 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2022-11-22 02:21:18,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 81 [2022-11-22 02:21:19,052 INFO L321 Elim1Store]: treesize reduction 39, result has 25.0 percent of original size [2022-11-22 02:21:19,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 33 [2022-11-22 02:21:19,232 INFO L321 Elim1Store]: treesize reduction 61, result has 7.6 percent of original size [2022-11-22 02:21:19,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 222 treesize of output 239 [2022-11-22 02:21:19,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 59 [2022-11-22 02:21:19,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:21:19,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2022-11-22 02:21:19,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:21:19,880 INFO L321 Elim1Store]: treesize reduction 128, result has 7.9 percent of original size [2022-11-22 02:21:19,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 149 treesize of output 173 [2022-11-22 02:21:19,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:21:20,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-22 02:21:20,117 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 8 treesize of output 1 [2022-11-22 02:21:20,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:21:20,272 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 02:21:20,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-11-22 02:21:20,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 57 [2022-11-22 02:21:20,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:21:20,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 71 [2022-11-22 02:21:20,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:21:20,524 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-22 02:21:20,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 149 treesize of output 158 [2022-11-22 02:21:20,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:21:20,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:20,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 70 [2022-11-22 02:21:20,932 INFO L321 Elim1Store]: treesize reduction 59, result has 35.2 percent of original size [2022-11-22 02:21:20,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 78 [2022-11-22 02:21:20,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 98 [2022-11-22 02:23:18,090 WARN L233 SmtUtils]: Spent 1.94m on a formula simplification. DAG size of input: 297 DAG size of output: 129 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:23:43,197 WARN L233 SmtUtils]: Spent 24.53s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:23:43,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 451 treesize of output 367 [2022-11-22 02:23:43,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 295 [2022-11-22 02:23:47,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 02:23:48,775 INFO L321 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2022-11-22 02:23:48,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 29 [2022-11-22 02:23:49,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:49,425 INFO L321 Elim1Store]: treesize reduction 37, result has 27.5 percent of original size [2022-11-22 02:23:49,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 63 [2022-11-22 02:23:49,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:49,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:49,462 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:23:49,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 68 [2022-11-22 02:23:49,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:23:49,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2022-11-22 02:23:49,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:49,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2022-11-22 02:23:49,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:23:50,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:50,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:50,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:50,232 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:23:50,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 88 treesize of output 43 [2022-11-22 02:23:50,298 INFO L321 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2022-11-22 02:23:50,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 50 [2022-11-22 02:23:50,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:50,308 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 13 treesize of output 7 [2022-11-22 02:23:50,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:23:50,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2022-11-22 02:23:51,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:51,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:52,477 INFO L321 Elim1Store]: treesize reduction 76, result has 47.6 percent of original size [2022-11-22 02:23:52,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 137 treesize of output 153 [2022-11-22 02:23:52,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:52,628 INFO L321 Elim1Store]: treesize reduction 40, result has 31.0 percent of original size [2022-11-22 02:23:52,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 101 treesize of output 112 [2022-11-22 02:23:52,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-22 02:23:53,089 INFO L321 Elim1Store]: treesize reduction 133, result has 40.9 percent of original size [2022-11-22 02:23:53,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 209 [2022-11-22 02:23:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:53,424 INFO L321 Elim1Store]: treesize reduction 132, result has 26.7 percent of original size [2022-11-22 02:23:53,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 93 treesize of output 132 [2022-11-22 02:23:53,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:53,581 INFO L321 Elim1Store]: treesize reduction 60, result has 23.1 percent of original size [2022-11-22 02:23:53,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 139 [2022-11-22 02:23:53,835 INFO L321 Elim1Store]: treesize reduction 102, result has 25.5 percent of original size [2022-11-22 02:23:53,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 89 treesize of output 123 [2022-11-22 02:23:54,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 11 [2022-11-22 02:23:54,853 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:23:55,077 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:23:55,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 72 [2022-11-22 02:23:56,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 107 [2022-11-22 02:23:56,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:56,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:56,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:23:56,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:23:56,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 3 [2022-11-22 02:23:56,323 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:23:56,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 107 [2022-11-22 02:23:56,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:56,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:56,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:23:56,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:23:56,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 3 [2022-11-22 02:23:56,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:23:57,061 INFO L321 Elim1Store]: treesize reduction 86, result has 30.6 percent of original size [2022-11-22 02:23:57,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 227 treesize of output 334 [2022-11-22 02:23:59,637 INFO L321 Elim1Store]: treesize reduction 251, result has 27.7 percent of original size [2022-11-22 02:23:59,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 353 treesize of output 580 [2022-11-22 02:24:00,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:00,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:00,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:00,787 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 59 treesize of output 39 [2022-11-22 02:24:01,001 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-22 02:24:01,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 39 [2022-11-22 02:24:02,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:02,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:02,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:02,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:02,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:02,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:02,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:02,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 7 [2022-11-22 02:24:02,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:02,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:02,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:02,372 INFO L321 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2022-11-22 02:24:02,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 2881 treesize of output 2269 [2022-11-22 02:24:03,239 INFO L321 Elim1Store]: treesize reduction 212, result has 10.9 percent of original size [2022-11-22 02:24:03,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 1362 treesize of output 1101 [2022-11-22 02:24:03,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:03,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:03,974 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:03,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:03,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:03,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:04,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 217 [2022-11-22 02:24:04,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:04,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:04,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:04,905 INFO L321 Elim1Store]: treesize reduction 180, result has 12.2 percent of original size [2022-11-22 02:24:04,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 237 treesize of output 337 [2022-11-22 02:24:05,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:05,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:05,815 INFO L321 Elim1Store]: treesize reduction 245, result has 13.7 percent of original size [2022-11-22 02:24:05,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 1314 treesize of output 1073 [2022-11-22 02:24:06,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:07,073 INFO L321 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2022-11-22 02:24:07,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2022-11-22 02:24:07,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:07,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:07,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:07,449 INFO L321 Elim1Store]: treesize reduction 81, result has 30.8 percent of original size [2022-11-22 02:24:07,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 109 [2022-11-22 02:24:07,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:07,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:07,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:07,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:07,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:07,759 INFO L321 Elim1Store]: treesize reduction 202, result has 0.5 percent of original size [2022-11-22 02:24:07,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 129 treesize of output 337 [2022-11-22 02:24:08,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-22 02:24:08,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:08,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:09,091 INFO L321 Elim1Store]: treesize reduction 106, result has 28.9 percent of original size [2022-11-22 02:24:09,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 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 117 treesize of output 369 [2022-11-22 02:24:10,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:10,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:10,186 INFO L321 Elim1Store]: treesize reduction 143, result has 12.8 percent of original size [2022-11-22 02:24:10,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 155 treesize of output 167 [2022-11-22 02:24:11,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-22 02:24:12,013 INFO L321 Elim1Store]: treesize reduction 96, result has 25.0 percent of original size [2022-11-22 02:24:12,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 105 [2022-11-22 02:24:12,583 INFO L321 Elim1Store]: treesize reduction 208, result has 21.2 percent of original size [2022-11-22 02:24:12,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 127 treesize of output 393 [2022-11-22 02:24:12,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:12,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:12,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:13,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:13,316 INFO L321 Elim1Store]: treesize reduction 244, result has 7.9 percent of original size [2022-11-22 02:24:13,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 851 treesize of output 683 [2022-11-22 02:24:14,475 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-22 02:24:14,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 44 [2022-11-22 02:24:15,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2974 treesize of output 2577 [2022-11-22 02:24:16,556 INFO L321 Elim1Store]: treesize reduction 168, result has 10.6 percent of original size [2022-11-22 02:24:16,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 290 treesize of output 435 [2022-11-22 02:24:17,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 3086 treesize of output 2701 [2022-11-22 02:24:20,545 INFO L321 Elim1Store]: treesize reduction 161, result has 14.4 percent of original size [2022-11-22 02:24:20,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 403 treesize of output 567 [2022-11-22 02:24:21,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:21,503 INFO L321 Elim1Store]: treesize reduction 212, result has 11.3 percent of original size [2022-11-22 02:24:21,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 122 treesize of output 197 [2022-11-22 02:24:22,542 INFO L321 Elim1Store]: treesize reduction 56, result has 67.6 percent of original size [2022-11-22 02:24:22,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 489 treesize of output 496 [2022-11-22 02:24:23,083 INFO L321 Elim1Store]: treesize reduction 136, result has 0.7 percent of original size [2022-11-22 02:24:23,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 330 treesize of output 82 [2022-11-22 02:24:23,327 INFO L321 Elim1Store]: treesize reduction 45, result has 15.1 percent of original size [2022-11-22 02:24:23,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 374 treesize of output 319 [2022-11-22 02:24:27,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1138 treesize of output 978 [2022-11-22 02:24:28,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 3463 treesize of output 3018 [2022-11-22 02:24:33,978 INFO L321 Elim1Store]: treesize reduction 177, result has 5.9 percent of original size [2022-11-22 02:24:33,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 777 treesize of output 865 [2022-11-22 02:24:35,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:35,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:36,034 INFO L321 Elim1Store]: treesize reduction 59, result has 10.6 percent of original size [2022-11-22 02:24:36,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 608 treesize of output 522 [2022-11-22 02:24:39,024 INFO L321 Elim1Store]: treesize reduction 161, result has 14.4 percent of original size [2022-11-22 02:24:39,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1061 treesize of output 1105 [2022-11-22 02:24:39,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:39,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:39,993 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-11-22 02:24:40,196 INFO L321 Elim1Store]: treesize reduction 136, result has 22.7 percent of original size [2022-11-22 02:24:40,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 652 treesize of output 692 [2022-11-22 02:24:40,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,499 INFO L321 Elim1Store]: treesize reduction 204, result has 9.7 percent of original size [2022-11-22 02:24:40,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 219 treesize of output 157 [2022-11-22 02:24:41,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2936 treesize of output 2617 [2022-11-22 02:24:43,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1306 treesize of output 1048 [2022-11-22 02:24:43,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1103 treesize of output 915 [2022-11-22 02:24:45,073 INFO L321 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2022-11-22 02:24:45,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 180 treesize of output 156 [2022-11-22 02:24:45,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 103 [2022-11-22 02:24:45,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-11-22 02:24:45,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 216 treesize of output 178 [2022-11-22 02:24:45,737 INFO L321 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2022-11-22 02:24:45,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 2691 treesize of output 2279 [2022-11-22 02:24:45,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2284 treesize of output 1916 [2022-11-22 02:24:50,406 INFO L321 Elim1Store]: treesize reduction 88, result has 11.1 percent of original size [2022-11-22 02:24:50,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 4168 treesize of output 3312 [2022-11-22 02:24:50,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3506 treesize of output 2866 [2022-11-22 02:24:52,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 690 treesize of output 626 [2022-11-22 02:24:52,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 601 treesize of output 541 [2022-11-22 02:24:53,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1100 treesize of output 996 [2022-11-22 02:24:53,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1009 treesize of output 933 [2022-11-22 02:25:22,928 WARN L233 SmtUtils]: Spent 14.18s on a formula simplification. DAG size of input: 1063 DAG size of output: 249 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:25:32,576 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:25:32,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:25:39,951 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse11 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ldv_set_add_~s#1.base|) |c_ULTIMATE.start_ldv_set_add_~s#1.offset|))) (let ((.cse3 (+ 8 |c_ULTIMATE.start_foo_~me~1#1.offset|)) (.cse8 (+ |c_ULTIMATE.start_ldv_set_add_~le~0#1.offset| 8)) (.cse9 (+ 4 .cse11)) (.cse7 (+ |c_ULTIMATE.start_ldv_set_add_~le~0#1.offset| 4))) (and (forall ((v_ArrVal_1192 (Array Int Int)) (|v___ldv_list_add_#in~next.base_27| Int) (v_ArrVal_1194 (Array Int Int)) (v_ArrVal_1193 (Array Int Int))) (let ((.cse0 (let ((.cse10 (store |c_#memory_$Pointer$.offset| |v___ldv_list_add_#in~next.base_27| (store (select |c_#memory_$Pointer$.offset| |v___ldv_list_add_#in~next.base_27|) .cse9 .cse7)))) (store (store .cse10 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| (store (store (select .cse10 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|) .cse7 .cse11) .cse8 |c_ULTIMATE.start_ldv_set_add_~s#1.offset|)) |c_ULTIMATE.start_ldv_set_add_~s#1.base| (store (select (store .cse10 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| v_ArrVal_1193) |c_ULTIMATE.start_ldv_set_add_~s#1.base|) |c_ULTIMATE.start_ldv_set_add_~s#1.offset| .cse7)))) (.cse5 (store (let ((.cse6 (store |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27| (store (select |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27|) .cse9 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|)))) (store .cse6 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| (store (store (select .cse6 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|) .cse7 |v___ldv_list_add_#in~next.base_27|) .cse8 |c_ULTIMATE.start_ldv_set_add_~s#1.base|))) |c_ULTIMATE.start_ldv_set_add_~s#1.base| (store (select (store (store |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27| v_ArrVal_1194) |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| v_ArrVal_1192) |c_ULTIMATE.start_ldv_set_add_~s#1.base|) |c_ULTIMATE.start_ldv_set_add_~s#1.offset| |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|)))) (let ((.cse1 (select (select .cse5 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)) (.cse2 (+ (select (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) (- 4)))) (let ((.cse4 (select (select .cse5 .cse1) .cse2))) (or (not (= (+ (select (select .cse0 .cse1) .cse2) 8) (select (select .cse0 |c_ULTIMATE.start_foo_~me~1#1.base|) .cse3))) (= |c_~#drvlist~0.base| .cse4) (not (= (select (select .cse5 |c_ULTIMATE.start_foo_~me~1#1.base|) .cse3) .cse4))))))) (forall ((v_ArrVal_1192 (Array Int Int)) (|v___ldv_list_add_#in~next.base_27| Int) (v_ArrVal_1194 (Array Int Int)) (v_ArrVal_1193 (Array Int Int))) (let ((.cse13 (let ((.cse18 (store |c_#memory_$Pointer$.offset| |v___ldv_list_add_#in~next.base_27| (store (select |c_#memory_$Pointer$.offset| |v___ldv_list_add_#in~next.base_27|) .cse9 .cse7)))) (store (store .cse18 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| (store (store (select .cse18 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|) .cse7 .cse11) .cse8 |c_ULTIMATE.start_ldv_set_add_~s#1.offset|)) |c_ULTIMATE.start_ldv_set_add_~s#1.base| (store (select (store .cse18 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| v_ArrVal_1193) |c_ULTIMATE.start_ldv_set_add_~s#1.base|) |c_ULTIMATE.start_ldv_set_add_~s#1.offset| .cse7)))) (.cse14 (store (let ((.cse17 (store |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27| (store (select |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27|) .cse9 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|)))) (store .cse17 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| (store (store (select .cse17 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|) .cse7 |v___ldv_list_add_#in~next.base_27|) .cse8 |c_ULTIMATE.start_ldv_set_add_~s#1.base|))) |c_ULTIMATE.start_ldv_set_add_~s#1.base| (store (select (store (store |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27| v_ArrVal_1194) |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| v_ArrVal_1192) |c_ULTIMATE.start_ldv_set_add_~s#1.base|) |c_ULTIMATE.start_ldv_set_add_~s#1.offset| |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|)))) (let ((.cse15 (select (select .cse14 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)) (.cse16 (+ (select (select .cse13 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) (- 4)))) (let ((.cse12 (+ (select (select .cse13 .cse15) .cse16) 8))) (or (not (= .cse12 (select (select .cse13 |c_ULTIMATE.start_foo_~me~1#1.base|) .cse3))) (= .cse12 |c_~#drvlist~0.offset|) (not (= (select (select .cse14 |c_ULTIMATE.start_foo_~me~1#1.base|) .cse3) (select (select .cse14 .cse15) .cse16))))))))))) is different from false [2022-11-22 02:25:39,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151672355] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:25:39,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1037404507] [2022-11-22 02:25:39,991 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-22 02:25:39,991 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:25:39,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:25:39,992 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:25:39,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:25:40,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:25:40,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:25:40,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:40,586 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-22 02:25:40,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-22 02:25:40,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:40,912 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-22 02:25:40,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-22 02:25:40,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,375 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-22 02:25:41,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-22 02:25:41,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:41,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:41,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:41,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:41,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:25:41,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:25:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:25:41,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:25:41,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:41,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:41,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:41,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:41,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:25:41,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:25:41,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:25:41,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:41,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-22 02:25:42,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:42,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:42,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:42,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:42,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:42,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:42,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:42,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:25:43,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:25:43,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:25:43,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:25:43,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:43,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:43,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:43,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:43,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:25:43,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:25:43,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:25:43,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:43,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:43,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:43,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:44,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:25:44,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:25:44,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:25:44,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:44,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:44,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:44,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:25:44,996 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 51 for LOIs [2022-11-22 02:25:45,042 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 41 for LOIs [2022-11-22 02:25:45,106 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 78 for LOIs [2022-11-22 02:25:45,351 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 86 for LOIs [2022-11-22 02:25:45,436 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:26:13,492 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5501#(and (= |~#drvlist~0.offset| 0) (<= 0 (+ |ULTIMATE.start_foo_~N~0#1| 2147483648)) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= 4 |~#drvlist~0.base|) (<= 0 |ULTIMATE.start_foo_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-22 02:26:13,492 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:26:13,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 02:26:13,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 33] total 56 [2022-11-22 02:26:13,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546261207] [2022-11-22 02:26:13,493 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 02:26:13,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-22 02:26:13,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:13,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-22 02:26:13,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=6804, Unknown=19, NotChecked=166, Total=7310 [2022-11-22 02:26:13,496 INFO L87 Difference]: Start difference. First operand 149 states and 191 transitions. Second operand has 56 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 42 states have internal predecessors, (63), 16 states have call successors, (18), 10 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-22 02:27:02,359 WARN L233 SmtUtils]: Spent 39.66s on a formula simplification. DAG size of input: 228 DAG size of output: 199 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:27:48,985 WARN L233 SmtUtils]: Spent 42.44s on a formula simplification. DAG size of input: 213 DAG size of output: 184 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:28:07,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:28:09,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:28:17,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:28:27,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:28:29,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:28:33,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:28:37,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:28:49,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:28:49,783 INFO L93 Difference]: Finished difference Result 345 states and 445 transitions. [2022-11-22 02:28:49,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-22 02:28:49,784 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 42 states have internal predecessors, (63), 16 states have call successors, (18), 10 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 16 states have call successors, (18) Word has length 53 [2022-11-22 02:28:49,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:28:49,786 INFO L225 Difference]: With dead ends: 345 [2022-11-22 02:28:49,787 INFO L226 Difference]: Without dead ends: 230 [2022-11-22 02:28:49,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 63 SyntacticMatches, 7 SemanticMatches, 121 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4307 ImplicationChecksByTransitivity, 331.2s TimeCoverageRelationStatistics Valid=818, Invalid=13921, Unknown=27, NotChecked=240, Total=15006 [2022-11-22 02:28:49,791 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 249 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 111 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:28:49,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 689 Invalid, 2470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 2325 Invalid, 34 Unknown, 0 Unchecked, 40.6s Time] [2022-11-22 02:28:49,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-22 02:28:49,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 192. [2022-11-22 02:28:49,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 138 states have (on average 1.2608695652173914) internal successors, (174), 144 states have internal predecessors, (174), 27 states have call successors, (27), 19 states have call predecessors, (27), 24 states have return successors, (40), 30 states have call predecessors, (40), 27 states have call successors, (40) [2022-11-22 02:28:49,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 241 transitions. [2022-11-22 02:28:49,860 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 241 transitions. Word has length 53 [2022-11-22 02:28:49,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:28:49,861 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 241 transitions. [2022-11-22 02:28:49,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 42 states have internal predecessors, (63), 16 states have call successors, (18), 10 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-22 02:28:49,862 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 241 transitions. [2022-11-22 02:28:49,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-22 02:28:49,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:28:49,863 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:28:49,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 02:28:50,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 02:28:50,064 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:28:50,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:28:50,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1333905901, now seen corresponding path program 1 times [2022-11-22 02:28:50,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:28:50,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339091721] [2022-11-22 02:28:50,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:28:50,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:28:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:28:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-22 02:28:50,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:28:50,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339091721] [2022-11-22 02:28:50,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339091721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:28:50,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:28:50,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:28:50,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074024500] [2022-11-22 02:28:50,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:28:50,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:28:50,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:28:50,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:28:50,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:28:50,243 INFO L87 Difference]: Start difference. First operand 192 states and 241 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-22 02:28:50,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:28:50,607 INFO L93 Difference]: Finished difference Result 206 states and 258 transitions. [2022-11-22 02:28:50,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:28:50,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 54 [2022-11-22 02:28:50,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:28:50,614 INFO L225 Difference]: With dead ends: 206 [2022-11-22 02:28:50,614 INFO L226 Difference]: Without dead ends: 204 [2022-11-22 02:28:50,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:28:50,616 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:28:50,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:28:50,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-22 02:28:50,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-11-22 02:28:50,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 148 states have (on average 1.2432432432432432) internal successors, (184), 152 states have internal predecessors, (184), 27 states have call successors, (27), 19 states have call predecessors, (27), 26 states have return successors, (42), 34 states have call predecessors, (42), 27 states have call successors, (42) [2022-11-22 02:28:50,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 253 transitions. [2022-11-22 02:28:50,704 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 253 transitions. Word has length 54 [2022-11-22 02:28:50,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:28:50,704 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 253 transitions. [2022-11-22 02:28:50,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-22 02:28:50,705 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 253 transitions. [2022-11-22 02:28:50,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-22 02:28:50,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:28:50,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:28:50,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:28:50,707 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:28:50,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:28:50,707 INFO L85 PathProgramCache]: Analyzing trace with hash 492805483, now seen corresponding path program 1 times [2022-11-22 02:28:50,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:28:50,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877813979] [2022-11-22 02:28:50,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:28:50,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:28:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:29:08,572 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:29:08,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:29:08,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877813979] [2022-11-22 02:29:08,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877813979] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:29:08,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851962446] [2022-11-22 02:29:08,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:29:08,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:29:08,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:29:08,575 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:29:08,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646ff680-d393-4cdd-aae6-780b44175dcc/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 02:29:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:29:08,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 286 conjunts are in the unsatisfiable core [2022-11-22 02:29:08,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:29:10,231 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:29:10,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:29:12,962 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-22 02:29:12,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 281 [2022-11-22 02:29:12,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:29:13,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:29:13,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:29:13,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:29:14,003 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-22 02:29:14,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 50 [2022-11-22 02:29:14,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:29:14,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:29:14,179 INFO L321 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-11-22 02:29:14,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 62 treesize of output 21 [2022-11-22 02:29:14,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:29:25,302 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-11-22 02:29:25,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2022-11-22 02:29:26,114 INFO L321 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2022-11-22 02:29:26,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 30 [2022-11-22 02:29:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:29:26,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-11-22 02:29:26,982 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 02:29:26,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 02:29:26,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-22 02:29:29,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:29:30,222 INFO L321 Elim1Store]: treesize reduction 289, result has 19.3 percent of original size [2022-11-22 02:29:30,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 209 treesize of output 208 [2022-11-22 02:29:30,642 INFO L321 Elim1Store]: treesize reduction 213, result has 19.3 percent of original size [2022-11-22 02:29:30,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 539 treesize of output 405 [2022-11-22 02:29:30,802 INFO L321 Elim1Store]: treesize reduction 298, result has 2.9 percent of original size [2022-11-22 02:29:30,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 466 treesize of output 314 [2022-11-22 02:29:33,312 INFO L321 Elim1Store]: treesize reduction 2143, result has 9.1 percent of original size [2022-11-22 02:29:33,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 4728 treesize of output 4532 [2022-11-22 02:29:33,759 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:29:33,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 3863 treesize of output 2543 [2022-11-22 02:29:33,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:30:08,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:30:08,129 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:30:08,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2527 treesize of output 2455 [2022-11-22 02:30:42,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:30:42,890 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 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 02:30:43,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:30:43,222 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 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 02:30:43,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-22 02:30:43,640 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-22 02:30:43,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-22 02:30:44,168 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-22 02:30:44,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-22 02:30:44,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-22 02:30:44,681 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-22 02:30:44,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 525 treesize of output 519 [2022-11-22 02:30:45,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 396 treesize of output 385 [2022-11-22 02:30:45,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:30:45,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 02:30:45,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:30:45,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 02:30:46,050 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-22 02:30:46,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 511 treesize of output 505 [2022-11-22 02:30:46,475 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-22 02:30:46,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-22 02:30:46,960 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-22 02:30:46,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 475 treesize of output 469 [2022-11-22 02:30:47,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:30:47,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 02:30:47,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-22 02:30:47,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 396 treesize of output 385 [2022-11-22 02:30:48,470 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-22 02:30:48,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-22 02:30:48,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:30:48,678 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 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 02:30:49,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:30:49,067 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 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 02:30:49,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 396 treesize of output 385 [2022-11-22 02:30:49,628 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-22 02:30:49,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-22 02:30:49,899 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-22 02:30:49,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 481 treesize of output 475 [2022-11-22 02:30:50,326 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-22 02:30:50,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 461 [2022-11-22 02:30:50,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-22 02:30:51,106 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-22 02:30:51,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-22 02:30:51,487 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-22 02:30:51,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-22 02:30:51,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-22 02:30:51,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 404 treesize of output 393 [2022-11-22 02:30:52,100 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-22 02:30:52,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 489 treesize of output 483 [2022-11-22 02:30:52,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:30:52,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 02:30:52,964 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-22 02:30:52,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-22 02:30:53,135 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-22 02:30:53,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-22 02:30:53,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-22 02:31:14,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:15,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:15,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:15,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:15,576 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 24 treesize of output 18 [2022-11-22 02:31:15,775 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 28 treesize of output 22 [2022-11-22 02:31:15,945 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 28 treesize of output 22 [2022-11-22 02:31:16,522 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 24 treesize of output 18 [2022-11-22 02:31:16,876 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 24 treesize of output 18 [2022-11-22 02:31:17,247 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 14 treesize of output 10 [2022-11-22 02:31:17,284 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 24 treesize of output 18 [2022-11-22 02:31:17,632 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 14 treesize of output 10 [2022-11-22 02:31:17,777 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 14 treesize of output 10 [2022-11-22 02:31:17,797 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 24 treesize of output 18 [2022-11-22 02:31:17,988 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 24 treesize of output 18 [2022-11-22 02:31:18,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:18,673 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 652 treesize of output 644 [2022-11-22 02:31:19,611 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 14 treesize of output 10 [2022-11-22 02:31:19,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:19,825 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 557 treesize of output 549 [2022-11-22 02:31:20,292 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 14 treesize of output 10 [2022-11-22 02:31:20,329 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 20 treesize of output 16 [2022-11-22 02:31:20,482 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 20 treesize of output 16 [2022-11-22 02:31:20,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:20,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 02:31:21,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:21,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 42 [2022-11-22 02:31:21,243 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 24 treesize of output 18 [2022-11-22 02:31:21,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:21,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:22,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:22,824 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 14 treesize of output 10 [2022-11-22 02:31:22,846 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 670 treesize of output 662 [2022-11-22 02:31:23,442 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 14 treesize of output 10 [2022-11-22 02:31:23,618 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 593 treesize of output 585 [2022-11-22 02:31:24,362 INFO L321 Elim1Store]: treesize reduction 34, result has 51.4 percent of original size [2022-11-22 02:31:24,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 818 treesize of output 842 [2022-11-22 02:31:25,822 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 557 treesize of output 549 [2022-11-22 02:31:26,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:26,419 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:31:26,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 58 [2022-11-22 02:31:27,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:31:27,724 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:31:27,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 52 [2022-11-22 02:31:29,081 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 955 treesize of output 947 [2022-11-22 02:31:29,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:29,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:29,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:30,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:31:30,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 951 treesize of output 943