./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/sll2c_prepend_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/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_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2c_prepend_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f682d6a9f9df80cf11b356f08ea6be5ab5adaf1b414fc8a476877af8610cc552 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:09:27,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:09:27,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:09:27,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:09:27,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:09:27,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:09:27,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:09:27,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:09:27,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:09:27,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:09:27,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:09:27,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:09:27,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:09:27,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:09:27,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:09:27,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:09:27,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:09:27,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:09:27,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:09:27,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:09:27,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:09:27,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:09:27,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:09:27,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:09:27,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:09:27,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:09:27,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:09:27,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:09:27,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:09:27,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:09:27,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:09:27,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:09:27,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:09:27,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:09:27,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:09:27,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:09:27,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:09:27,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:09:27,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:09:27,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:09:27,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:09:27,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 01:09:27,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:09:27,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:09:27,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:09:27,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:09:27,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:09:27,804 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:09:27,804 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:09:27,805 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:09:27,805 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:09:27,805 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:09:27,805 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:09:27,806 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:09:27,806 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:09:27,806 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:09:27,807 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:09:27,807 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:09:27,807 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:09:27,807 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:09:27,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:09:27,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:09:27,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:09:27,809 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:09:27,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:09:27,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:09:27,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:09:27,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:09:27,811 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:09:27,811 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:09:27,811 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:09:27,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:09:27,812 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:09:27,812 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:09:27,812 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:09:27,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:09:27,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:09:27,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:27,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:09:27,814 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:09:27,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:09:27,814 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:09:27,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:09:27,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:09:27,815 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_634a46cf-a3f4-419c-8d8d-e743076b950e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f682d6a9f9df80cf11b356f08ea6be5ab5adaf1b414fc8a476877af8610cc552 [2022-11-22 01:09:28,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:09:28,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:09:28,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:09:28,090 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:09:28,091 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:09:28,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/list-simple/sll2c_prepend_equal.i [2022-11-22 01:09:31,243 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:09:31,512 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:09:31,513 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/sv-benchmarks/c/list-simple/sll2c_prepend_equal.i [2022-11-22 01:09:31,527 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/data/037ddc87a/bbcc8f40ca604797acf563b09cd9c5f9/FLAG46641b5b4 [2022-11-22 01:09:31,549 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/data/037ddc87a/bbcc8f40ca604797acf563b09cd9c5f9 [2022-11-22 01:09:31,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:09:31,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:09:31,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:31,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:09:31,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:09:31,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:31,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46845806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31, skipping insertion in model container [2022-11-22 01:09:31,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:31,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:09:31,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:09:31,892 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_634a46cf-a3f4-419c-8d8d-e743076b950e/sv-benchmarks/c/list-simple/sll2c_prepend_equal.i[24458,24471] [2022-11-22 01:09:31,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:31,906 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:09:31,957 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_634a46cf-a3f4-419c-8d8d-e743076b950e/sv-benchmarks/c/list-simple/sll2c_prepend_equal.i[24458,24471] [2022-11-22 01:09:31,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:31,986 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:09:31,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31 WrapperNode [2022-11-22 01:09:31,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:31,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:31,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:09:31,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:09:31,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,035 INFO L138 Inliner]: procedures = 127, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 143 [2022-11-22 01:09:32,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:32,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:09:32,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:09:32,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:09:32,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,077 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:09:32,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:09:32,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:09:32,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:09:32,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (1/1) ... [2022-11-22 01:09:32,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:32,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:32,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:09:32,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:09:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:09:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:09:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-22 01:09:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-22 01:09:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:09:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:09:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:09:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:09:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:09:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:09:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:09:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:09:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:09:32,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:09:32,368 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:09:32,370 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:09:32,901 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:09:32,980 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:09:32,981 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 01:09:32,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:32 BoogieIcfgContainer [2022-11-22 01:09:32,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:09:32,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:09:32,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:09:32,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:09:32,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:31" (1/3) ... [2022-11-22 01:09:32,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598ef762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:32, skipping insertion in model container [2022-11-22 01:09:32,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:31" (2/3) ... [2022-11-22 01:09:32,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598ef762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:32, skipping insertion in model container [2022-11-22 01:09:32,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:32" (3/3) ... [2022-11-22 01:09:32,993 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_prepend_equal.i [2022-11-22 01:09:33,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:09:33,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2022-11-22 01:09:33,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:09:33,080 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6e9b0dea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:09:33,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2022-11-22 01:09:33,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 47 states have (on average 2.3404255319148937) internal successors, (110), 99 states have internal predecessors, (110), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:09:33,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:33,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:09:33,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting node_createErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:09:33,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:33,097 INFO L85 PathProgramCache]: Analyzing trace with hash 220058362, now seen corresponding path program 1 times [2022-11-22 01:09:33,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:33,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625899989] [2022-11-22 01:09:33,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:33,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:33,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:33,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625899989] [2022-11-22 01:09:33,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625899989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:33,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:33,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:09:33,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614867179] [2022-11-22 01:09:33,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:33,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:09:33,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:09:33,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:33,475 INFO L87 Difference]: Start difference. First operand has 104 states, 47 states have (on average 2.3404255319148937) internal successors, (110), 99 states have internal predecessors, (110), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:33,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:33,706 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2022-11-22 01:09:33,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:09:33,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:09:33,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:33,730 INFO L225 Difference]: With dead ends: 102 [2022-11-22 01:09:33,730 INFO L226 Difference]: Without dead ends: 100 [2022-11-22 01:09:33,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:33,737 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 6 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:33,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 141 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:09:33,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-22 01:09:33,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-11-22 01:09:33,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 46 states have (on average 2.217391304347826) internal successors, (102), 95 states have internal predecessors, (102), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:33,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 108 transitions. [2022-11-22 01:09:33,797 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 108 transitions. Word has length 5 [2022-11-22 01:09:33,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:33,798 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 108 transitions. [2022-11-22 01:09:33,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:33,799 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 108 transitions. [2022-11-22 01:09:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:09:33,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:33,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:09:33,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:09:33,801 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting node_createErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:09:33,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:33,802 INFO L85 PathProgramCache]: Analyzing trace with hash 220058363, now seen corresponding path program 1 times [2022-11-22 01:09:33,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:33,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738940853] [2022-11-22 01:09:33,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:33,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:34,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:34,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:34,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738940853] [2022-11-22 01:09:34,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738940853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:34,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:34,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:09:34,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207489919] [2022-11-22 01:09:34,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:34,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:09:34,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:34,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:09:34,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:34,006 INFO L87 Difference]: Start difference. First operand 100 states and 108 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:34,152 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2022-11-22 01:09:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:09:34,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:09:34,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:34,154 INFO L225 Difference]: With dead ends: 98 [2022-11-22 01:09:34,155 INFO L226 Difference]: Without dead ends: 98 [2022-11-22 01:09:34,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:34,156 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 2 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:34,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 146 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:09:34,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-22 01:09:34,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-11-22 01:09:34,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 46 states have (on average 2.1739130434782608) internal successors, (100), 93 states have internal predecessors, (100), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2022-11-22 01:09:34,166 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 5 [2022-11-22 01:09:34,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:34,166 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2022-11-22 01:09:34,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:34,167 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2022-11-22 01:09:34,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:09:34,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:34,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:34,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:09:34,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:09:34,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:34,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1428630120, now seen corresponding path program 1 times [2022-11-22 01:09:34,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:34,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144995282] [2022-11-22 01:09:34,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:34,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:34,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:34,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144995282] [2022-11-22 01:09:34,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144995282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:34,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:34,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:09:34,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820697313] [2022-11-22 01:09:34,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:34,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:09:34,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:34,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:09:34,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:34,331 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:09:34,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:34,370 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2022-11-22 01:09:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:09:34,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10 [2022-11-22 01:09:34,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:34,372 INFO L225 Difference]: With dead ends: 104 [2022-11-22 01:09:34,372 INFO L226 Difference]: Without dead ends: 104 [2022-11-22 01:09:34,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:34,374 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 4 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:34,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 181 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:09:34,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-22 01:09:34,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 99. [2022-11-22 01:09:34,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 47 states have (on average 2.148936170212766) internal successors, (101), 94 states have internal predecessors, (101), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:34,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 107 transitions. [2022-11-22 01:09:34,386 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 107 transitions. Word has length 10 [2022-11-22 01:09:34,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:34,386 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 107 transitions. [2022-11-22 01:09:34,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:09:34,387 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 107 transitions. [2022-11-22 01:09:34,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:09:34,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:34,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:34,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:09:34,388 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:09:34,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash -707108059, now seen corresponding path program 1 times [2022-11-22 01:09:34,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:34,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250585044] [2022-11-22 01:09:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:34,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:34,547 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:09:34,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:34,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250585044] [2022-11-22 01:09:34,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250585044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:34,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:34,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:09:34,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816780050] [2022-11-22 01:09:34,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:34,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:09:34,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:34,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:09:34,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:09:34,550 INFO L87 Difference]: Start difference. First operand 99 states and 107 transitions. Second operand has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:09:34,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:34,772 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2022-11-22 01:09:34,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:09:34,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-11-22 01:09:34,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:34,776 INFO L225 Difference]: With dead ends: 99 [2022-11-22 01:09:34,776 INFO L226 Difference]: Without dead ends: 99 [2022-11-22 01:09:34,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:09:34,778 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 9 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:34,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 279 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:09:34,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-22 01:09:34,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2022-11-22 01:09:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 47 states have (on average 2.127659574468085) internal successors, (100), 93 states have internal predecessors, (100), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2022-11-22 01:09:34,788 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 17 [2022-11-22 01:09:34,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:34,789 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2022-11-22 01:09:34,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:09:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2022-11-22 01:09:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:09:34,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:34,790 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:34,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:09:34,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:09:34,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:34,791 INFO L85 PathProgramCache]: Analyzing trace with hash -707108058, now seen corresponding path program 1 times [2022-11-22 01:09:34,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:34,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410485938] [2022-11-22 01:09:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:09:35,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:35,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410485938] [2022-11-22 01:09:35,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410485938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:35,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:35,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:09:35,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902982058] [2022-11-22 01:09:35,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:35,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:09:35,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:35,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:09:35,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:09:35,088 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:09:35,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:35,316 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2022-11-22 01:09:35,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:09:35,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-11-22 01:09:35,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:35,320 INFO L225 Difference]: With dead ends: 98 [2022-11-22 01:09:35,321 INFO L226 Difference]: Without dead ends: 98 [2022-11-22 01:09:35,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:09:35,337 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 7 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:35,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 303 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:09:35,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-22 01:09:35,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2022-11-22 01:09:35,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 47 states have (on average 2.106382978723404) internal successors, (99), 92 states have internal predecessors, (99), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:35,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2022-11-22 01:09:35,355 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 17 [2022-11-22 01:09:35,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:35,356 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2022-11-22 01:09:35,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:09:35,356 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2022-11-22 01:09:35,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:09:35,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:35,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:35,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:09:35,358 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:09:35,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:35,363 INFO L85 PathProgramCache]: Analyzing trace with hash -925822776, now seen corresponding path program 1 times [2022-11-22 01:09:35,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:35,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634191832] [2022-11-22 01:09:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:35,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:35,700 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:09:35,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:35,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634191832] [2022-11-22 01:09:35,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634191832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:35,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633039742] [2022-11-22 01:09:35,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:35,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:35,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:35,706 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:35,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:09:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:35,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-22 01:09:35,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:35,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:09:35,969 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_158 Int)) (= |c_#valid| (store |c_old(#valid)| |c_node_create_~temp~0#1.base| v_ArrVal_158))) is different from true [2022-11-22 01:09:35,987 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_158 Int)) (= |c_#valid| (store |c_old(#valid)| |c_node_create_#res#1.base| v_ArrVal_158))) is different from true [2022-11-22 01:09:36,012 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:09:36,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-22 01:09:36,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 4 not checked. [2022-11-22 01:09:36,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:36,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:09:36,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633039742] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:09:36,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [514094144] [2022-11-22 01:09:36,491 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 01:09:36,492 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:09:36,497 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:09:36,503 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:09:36,503 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:09:36,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:09:36,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:36,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:09:36,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:09:36,719 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 01:09:36,733 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 01:09:36,744 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 01:09:36,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:36,787 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 13 treesize of output 9 [2022-11-22 01:09:36,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:36,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:36,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:36,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:36,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:37,290 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:09:37,291 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 208 treesize of output 197 [2022-11-22 01:09:37,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:09:37,613 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 13 treesize of output 9 [2022-11-22 01:09:37,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:37,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:37,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:37,684 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:37,687 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:37,692 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:37,694 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:37,697 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:37,827 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:09:37,828 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 208 treesize of output 197 [2022-11-22 01:09:38,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:38,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:38,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:09:38,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:38,178 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 13 treesize of output 9 [2022-11-22 01:09:38,194 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:38,196 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:38,198 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:38,200 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:38,208 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:38,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:38,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:09:38,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:38,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,621 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 133 treesize of output 117 [2022-11-22 01:09:38,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:38,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 117 [2022-11-22 01:09:38,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:38,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 109 [2022-11-22 01:09:38,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:39,008 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 65 for LOIs [2022-11-22 01:09:39,304 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:09:41,624 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1252#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (not (= (select |#valid| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) 1)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 01:09:41,624 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:09:41,624 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:09:41,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 18 [2022-11-22 01:09:41,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524333506] [2022-11-22 01:09:41,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:09:41,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-22 01:09:41,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:41,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-22 01:09:41,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=699, Unknown=2, NotChecked=110, Total=930 [2022-11-22 01:09:41,627 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand has 19 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-22 01:09:42,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:42,091 INFO L93 Difference]: Finished difference Result 113 states and 122 transitions. [2022-11-22 01:09:42,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:09:42,094 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2022-11-22 01:09:42,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:42,095 INFO L225 Difference]: With dead ends: 113 [2022-11-22 01:09:42,095 INFO L226 Difference]: Without dead ends: 113 [2022-11-22 01:09:42,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=130, Invalid=746, Unknown=2, NotChecked=114, Total=992 [2022-11-22 01:09:42,097 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 183 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 202 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:42,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 437 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 540 Invalid, 0 Unknown, 202 Unchecked, 0.4s Time] [2022-11-22 01:09:42,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-22 01:09:42,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 96. [2022-11-22 01:09:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 47 states have (on average 2.0851063829787235) internal successors, (98), 91 states have internal predecessors, (98), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:42,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2022-11-22 01:09:42,102 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 19 [2022-11-22 01:09:42,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:42,103 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2022-11-22 01:09:42,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-22 01:09:42,103 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2022-11-22 01:09:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:09:42,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:42,104 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:42,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:09:42,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-22 01:09:42,305 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:09:42,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:42,305 INFO L85 PathProgramCache]: Analyzing trace with hash -925822775, now seen corresponding path program 1 times [2022-11-22 01:09:42,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:42,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719551559] [2022-11-22 01:09:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:42,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:09:42,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:42,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719551559] [2022-11-22 01:09:42,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719551559] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:42,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878206299] [2022-11-22 01:09:42,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:42,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:42,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:42,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:42,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:09:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:42,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-22 01:09:42,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:42,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:09:42,950 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:09:42,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-22 01:09:42,968 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:09:42,969 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 01:09:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:43,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:43,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878206299] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:43,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1040655534] [2022-11-22 01:09:43,217 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 01:09:43,217 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:09:43,218 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:09:43,218 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:09:43,218 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:09:43,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:09:43,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:43,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:09:43,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:09:43,300 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 01:09:43,304 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 01:09:43,309 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 01:09:43,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:43,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:43,332 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 13 treesize of output 9 [2022-11-22 01:09:43,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:43,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:43,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:43,592 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:09:43,593 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 208 treesize of output 197 [2022-11-22 01:09:43,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:43,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:43,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:43,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:43,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:43,890 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:43,895 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:43,897 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:43,898 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:44,012 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:09:44,013 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 208 treesize of output 197 [2022-11-22 01:09:44,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:44,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:44,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:44,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:44,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:44,292 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:44,294 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:44,296 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:44,299 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:44,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:44,369 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:44,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:44,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:09:44,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:09:44,589 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 01:09:44,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:09:44,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:44,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:44,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:44,870 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 65 for LOIs [2022-11-22 01:09:45,152 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:09:47,893 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1565#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (< (select |#length| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (+ |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4)) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 01:09:47,893 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:09:47,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:09:47,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 17 [2022-11-22 01:09:47,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113651136] [2022-11-22 01:09:47,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:09:47,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-22 01:09:47,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:47,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-22 01:09:47,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=888, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:09:47,896 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand has 18 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-22 01:09:48,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:48,771 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2022-11-22 01:09:48,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:09:48,772 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 19 [2022-11-22 01:09:48,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:48,773 INFO L225 Difference]: With dead ends: 97 [2022-11-22 01:09:48,773 INFO L226 Difference]: Without dead ends: 97 [2022-11-22 01:09:48,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=144, Invalid=1188, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 01:09:48,774 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 95 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:48,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 506 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:09:48,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-22 01:09:48,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2022-11-22 01:09:48,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 47 states have (on average 2.0638297872340425) internal successors, (97), 90 states have internal predecessors, (97), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2022-11-22 01:09:48,780 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 19 [2022-11-22 01:09:48,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:48,781 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2022-11-22 01:09:48,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-22 01:09:48,781 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2022-11-22 01:09:48,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 01:09:48,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:48,782 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:48,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 01:09:48,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 01:09:48,992 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:09:48,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:48,993 INFO L85 PathProgramCache]: Analyzing trace with hash 719206411, now seen corresponding path program 1 times [2022-11-22 01:09:48,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:48,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132609940] [2022-11-22 01:09:48,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:48,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:49,601 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:09:49,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:49,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132609940] [2022-11-22 01:09:49,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132609940] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:49,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738713561] [2022-11-22 01:09:49,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:49,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:49,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:49,604 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:49,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:09:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:49,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-22 01:09:49,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:49,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:09:49,772 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 5 treesize of output 3 [2022-11-22 01:09:49,782 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (exists ((v_ArrVal_353 Int)) (= |c_#valid| (store |c_old(#valid)| |node_create_~temp~0#1.base| v_ArrVal_353))) (< |node_create_~temp~0#1.base| |c_#StackHeapBarrier|))) is different from true [2022-11-22 01:09:49,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:49,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 01:09:49,825 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 01:09:49,834 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (< |node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_354 Int)) (= |c_#valid| (store |c_old(#valid)| |node_create_~temp~0#1.base| v_ArrVal_354))))) is different from true [2022-11-22 01:09:49,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:49,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 01:09:49,872 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (= |c_#valid| (store |c_old(#valid)| |node_create_~temp~0#1.base| 1))) is different from true [2022-11-22 01:09:49,890 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:09:49,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 01:09:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 12 not checked. [2022-11-22 01:09:49,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:50,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738713561] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:50,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [121341916] [2022-11-22 01:09:50,098 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-22 01:09:50,098 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:09:50,099 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:09:50,099 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:09:50,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:09:50,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:09:50,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:50,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:09:50,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:09:50,185 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 01:09:50,190 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 01:09:50,198 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 01:09:50,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:50,214 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 13 treesize of output 9 [2022-11-22 01:09:50,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:50,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:50,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:50,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:50,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:50,455 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:09:50,456 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 208 treesize of output 197 [2022-11-22 01:09:50,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:50,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:50,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:50,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:50,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:50,741 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:50,743 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:50,745 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:50,747 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:50,825 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:09:50,826 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 208 treesize of output 197 [2022-11-22 01:09:51,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:51,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:09:51,098 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 13 treesize of output 9 [2022-11-22 01:09:51,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:51,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:51,128 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:51,130 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:51,132 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:51,137 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:51,140 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:51,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:51,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:51,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:09:51,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:51,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:51,418 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 133 treesize of output 117 [2022-11-22 01:09:51,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:51,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 117 [2022-11-22 01:09:51,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:51,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 113 [2022-11-22 01:09:51,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:09:51,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:09:51,754 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 01:09:51,874 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:51,880 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:09:51,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:51,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:51,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:09:51,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:51,933 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:09:51,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:52,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:52,074 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:09:52,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:52,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:52,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:09:52,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:52,119 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:09:52,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:52,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:52,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:52,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:52,285 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-22 01:09:52,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:09:52,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:09:52,334 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 01:09:52,341 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 01:09:52,350 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 01:09:52,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:52,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:52,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:52,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:52,387 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 13 treesize of output 9 [2022-11-22 01:09:52,393 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:09:54,863 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1914#(and (<= 1 |ULTIMATE.start_sll_circular_prepend_~data#1|) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (not (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) 1)) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:09:54,863 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:09:54,864 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:09:54,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 14 [2022-11-22 01:09:54,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835961793] [2022-11-22 01:09:54,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:09:54,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 01:09:54,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:54,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 01:09:54,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=774, Unknown=3, NotChecked=174, Total=1056 [2022-11-22 01:09:54,866 INFO L87 Difference]: Start difference. First operand 95 states and 103 transitions. Second operand has 16 states, 12 states have (on average 2.75) internal successors, (33), 14 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 6 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:09:55,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:55,308 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2022-11-22 01:09:55,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:09:55,308 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 2.75) internal successors, (33), 14 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 6 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2022-11-22 01:09:55,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:55,309 INFO L225 Difference]: With dead ends: 103 [2022-11-22 01:09:55,309 INFO L226 Difference]: Without dead ends: 103 [2022-11-22 01:09:55,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=121, Invalid=880, Unknown=3, NotChecked=186, Total=1190 [2022-11-22 01:09:55,311 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 232 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 321 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:55,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 187 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 323 Invalid, 0 Unknown, 321 Unchecked, 0.4s Time] [2022-11-22 01:09:55,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-22 01:09:55,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 86. [2022-11-22 01:09:55,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 47 states have (on average 1.872340425531915) internal successors, (88), 81 states have internal predecessors, (88), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2022-11-22 01:09:55,316 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 27 [2022-11-22 01:09:55,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:55,317 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2022-11-22 01:09:55,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 2.75) internal successors, (33), 14 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 6 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:09:55,317 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2022-11-22 01:09:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 01:09:55,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:55,318 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:55,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:09:55,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:55,524 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:09:55,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:55,525 INFO L85 PathProgramCache]: Analyzing trace with hash 719206412, now seen corresponding path program 1 times [2022-11-22 01:09:55,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:55,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882352750] [2022-11-22 01:09:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:55,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:56,061 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:09:56,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:56,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882352750] [2022-11-22 01:09:56,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882352750] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:56,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734929714] [2022-11-22 01:09:56,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:56,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:56,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:56,067 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:56,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:09:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:56,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-22 01:09:56,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:56,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:09:56,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:56,246 WARN L859 $PredicateComparison]: unable to prove that (and (< |c_node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_473 Int)) (= (store |c_old(#length)| |c_node_create_~temp~0#1.base| v_ArrVal_473) |c_#length|))) is different from true [2022-11-22 01:09:56,262 WARN L859 $PredicateComparison]: unable to prove that (and (< |c_node_create_#res#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_473 Int)) (= |c_#length| (store |c_old(#length)| |c_node_create_#res#1.base| v_ArrVal_473)))) is different from true [2022-11-22 01:09:56,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:56,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 01:09:56,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:56,456 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:09:56,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-22 01:09:56,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:09:56,678 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:09:56,679 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 38 treesize of output 26 [2022-11-22 01:09:56,684 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 18 treesize of output 16 [2022-11-22 01:09:56,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:56,708 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (< |node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_478 Int)) (= |c_#length| (store |c_old(#length)| |node_create_~temp~0#1.base| v_ArrVal_478))))) is different from true [2022-11-22 01:09:56,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:56,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 01:09:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 12 not checked. [2022-11-22 01:09:56,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:56,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734929714] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:56,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1439285449] [2022-11-22 01:09:56,873 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-22 01:09:56,873 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:09:56,874 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:09:56,874 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:09:56,874 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:09:56,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:56,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:56,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:09:56,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:56,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:56,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:56,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:09:56,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:09:56,951 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 01:09:56,956 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 01:09:56,960 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 01:09:56,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:56,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:56,977 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 13 treesize of output 9 [2022-11-22 01:09:56,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:56,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:57,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:57,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:57,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:57,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:57,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:57,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:57,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:57,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:57,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:57,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:57,123 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:09:57,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:09:57,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:57,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:57,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:57,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:57,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:57,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:57,226 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:09:57,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:09:57,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:57,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:57,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:57,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:57,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:57,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:57,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:57,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-22 01:09:57,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:57,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 236 [2022-11-22 01:09:57,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:57,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 252 [2022-11-22 01:09:57,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:57,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:57,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:57,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:09:57,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:09:57,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:09:57,924 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 01:09:58,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:09:58,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:58,031 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:09:58,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:58,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:58,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:58,066 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:09:58,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:58,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:09:58,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:58,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:58,186 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:09:58,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:58,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:58,206 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:09:58,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:58,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:58,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:58,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:09:58,390 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-22 01:09:58,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:09:58,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:09:58,425 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 01:09:58,430 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 01:09:58,436 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 01:09:58,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:58,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:58,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:58,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:09:58,470 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 13 treesize of output 9 [2022-11-22 01:09:58,475 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:10:01,845 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2233#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (= |ULTIMATE.start_sll_circular_prepend_~data#1| (select (select |#memory_int| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) 4)) (< |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (= |ULTIMATE.start_sll_circular_prepend_#in~data#1| |ULTIMATE.start_sll_circular_prepend_~data#1|) (= |ULTIMATE.start_sll_circular_prepend_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_sll_circular_prepend_#in~head#1.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 1) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) 0) 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= 8 (select |#length| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= 1 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) 0) 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (not (= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| 0)) (= 1 (select |#valid| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (< (select |#length| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (+ |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 4)) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|))' at error location [2022-11-22 01:10:01,845 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:10:01,845 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:10:01,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14] total 20 [2022-11-22 01:10:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261633270] [2022-11-22 01:10:01,846 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:10:01,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-22 01:10:01,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:01,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-22 01:10:01,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1152, Unknown=7, NotChecked=210, Total=1482 [2022-11-22 01:10:01,848 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 22 states, 15 states have (on average 2.4) internal successors, (36), 17 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-22 01:10:02,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:02,893 INFO L93 Difference]: Finished difference Result 101 states and 114 transitions. [2022-11-22 01:10:02,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:10:02,894 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 15 states have (on average 2.4) internal successors, (36), 17 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 27 [2022-11-22 01:10:02,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:02,895 INFO L225 Difference]: With dead ends: 101 [2022-11-22 01:10:02,895 INFO L226 Difference]: Without dead ends: 101 [2022-11-22 01:10:02,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=169, Invalid=1728, Unknown=7, NotChecked=258, Total=2162 [2022-11-22 01:10:02,897 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 297 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 328 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:02,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 347 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 760 Invalid, 0 Unknown, 328 Unchecked, 0.7s Time] [2022-11-22 01:10:02,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-22 01:10:02,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 77. [2022-11-22 01:10:02,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 47 states have (on average 1.6808510638297873) internal successors, (79), 72 states have internal predecessors, (79), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2022-11-22 01:10:02,902 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 27 [2022-11-22 01:10:02,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:02,902 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2022-11-22 01:10:02,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 15 states have (on average 2.4) internal successors, (36), 17 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-22 01:10:02,903 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2022-11-22 01:10:02,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-22 01:10:02,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:02,904 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:02,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:03,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:03,110 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:10:03,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:03,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1713643650, now seen corresponding path program 1 times [2022-11-22 01:10:03,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:03,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854581507] [2022-11-22 01:10:03,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:03,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 01:10:03,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:03,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854581507] [2022-11-22 01:10:03,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854581507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:03,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:03,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:10:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993217009] [2022-11-22 01:10:03,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:03,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:10:03,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:03,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:10:03,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:10:03,214 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 6 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:10:03,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:03,385 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2022-11-22 01:10:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:10:03,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2022-11-22 01:10:03,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:03,386 INFO L225 Difference]: With dead ends: 92 [2022-11-22 01:10:03,386 INFO L226 Difference]: Without dead ends: 92 [2022-11-22 01:10:03,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:10:03,387 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 59 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:03,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 165 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:10:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-22 01:10:03,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 75. [2022-11-22 01:10:03,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 70 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:03,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2022-11-22 01:10:03,402 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 30 [2022-11-22 01:10:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:03,403 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2022-11-22 01:10:03,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:10:03,403 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2022-11-22 01:10:03,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-22 01:10:03,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:03,404 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:03,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:10:03,405 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:10:03,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:03,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1713643649, now seen corresponding path program 1 times [2022-11-22 01:10:03,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:03,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996890809] [2022-11-22 01:10:03,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:03,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:10:03,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:03,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996890809] [2022-11-22 01:10:03,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996890809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:03,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:03,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:10:03,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417878938] [2022-11-22 01:10:03,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:03,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:10:03,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:03,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:10:03,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:10:03,607 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:10:03,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:03,738 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2022-11-22 01:10:03,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:10:03,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2022-11-22 01:10:03,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:03,739 INFO L225 Difference]: With dead ends: 73 [2022-11-22 01:10:03,739 INFO L226 Difference]: Without dead ends: 73 [2022-11-22 01:10:03,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:10:03,740 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 60 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:03,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 178 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:10:03,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-22 01:10:03,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-22 01:10:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.5957446808510638) internal successors, (75), 68 states have internal predecessors, (75), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:03,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2022-11-22 01:10:03,743 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 30 [2022-11-22 01:10:03,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:03,743 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2022-11-22 01:10:03,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:10:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2022-11-22 01:10:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-22 01:10:03,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:03,744 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:03,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:10:03,745 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:10:03,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:03,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1713630772, now seen corresponding path program 1 times [2022-11-22 01:10:03,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:03,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629062449] [2022-11-22 01:10:03,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:03,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:04,317 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:10:04,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:04,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629062449] [2022-11-22 01:10:04,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629062449] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:04,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673389759] [2022-11-22 01:10:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:04,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:04,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:04,319 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:04,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:10:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:04,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-22 01:10:04,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:04,608 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 9 treesize of output 5 [2022-11-22 01:10:04,723 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (exists ((v_ArrVal_718 Int)) (= |c_#valid| (store |c_old(#valid)| |node_create_~temp~0#1.base| v_ArrVal_718))) (exists ((v_ArrVal_720 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_720))) (< |node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)))) is different from true [2022-11-22 01:10:04,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:04,734 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 16 treesize of output 18 [2022-11-22 01:10:04,753 INFO L321 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-11-22 01:10:04,753 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 21 treesize of output 29 [2022-11-22 01:10:04,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-22 01:10:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:10:04,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:10:04,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673389759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:04,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:10:04,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 21 [2022-11-22 01:10:04,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208666592] [2022-11-22 01:10:04,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:04,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:10:04,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:04,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:10:04,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=365, Unknown=2, NotChecked=38, Total=462 [2022-11-22 01:10:04,803 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand has 11 states, 8 states have (on average 2.5) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:10:05,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:05,253 INFO L93 Difference]: Finished difference Result 110 states and 123 transitions. [2022-11-22 01:10:05,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:10:05,253 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.5) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-11-22 01:10:05,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:05,254 INFO L225 Difference]: With dead ends: 110 [2022-11-22 01:10:05,254 INFO L226 Difference]: Without dead ends: 110 [2022-11-22 01:10:05,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=436, Unknown=2, NotChecked=42, Total=552 [2022-11-22 01:10:05,255 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 66 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 120 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:05,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 408 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 450 Invalid, 3 Unknown, 120 Unchecked, 0.4s Time] [2022-11-22 01:10:05,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-22 01:10:05,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 72. [2022-11-22 01:10:05,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.5625) internal successors, (75), 67 states have internal predecessors, (75), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:05,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2022-11-22 01:10:05,259 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 30 [2022-11-22 01:10:05,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:05,259 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2022-11-22 01:10:05,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.5) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:10:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2022-11-22 01:10:05,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-22 01:10:05,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:05,260 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:05,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:05,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:05,469 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:10:05,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:05,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1713630771, now seen corresponding path program 1 times [2022-11-22 01:10:05,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:05,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710106230] [2022-11-22 01:10:05,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:05,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:06,348 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:10:06,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:06,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710106230] [2022-11-22 01:10:06,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710106230] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:06,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880174031] [2022-11-22 01:10:06,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:06,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:06,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:06,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:06,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:10:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:06,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-22 01:10:06,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:06,775 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 25 treesize of output 17 [2022-11-22 01:10:06,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:06,973 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (exists ((v_ArrVal_837 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |node_create_~temp~0#1.base| v_ArrVal_837) |c_#memory_$Pointer$.offset|)) (< |node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_836 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_836))) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)) (exists ((v_ArrVal_833 Int)) (= (store |c_old(#length)| |node_create_~temp~0#1.base| v_ArrVal_833) |c_#length|)))) is different from true [2022-11-22 01:10:07,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,001 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 31 treesize of output 31 [2022-11-22 01:10:07,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-22 01:10:07,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,025 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 29 treesize of output 29 [2022-11-22 01:10:07,035 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-22 01:10:07,035 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 15 treesize of output 15 [2022-11-22 01:10:07,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-22 01:10:07,109 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 26 treesize of output 14 [2022-11-22 01:10:07,144 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2022-11-22 01:10:07,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:07,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880174031] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:07,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [316727714] [2022-11-22 01:10:07,446 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-22 01:10:07,447 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:10:07,447 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:10:07,447 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:10:07,447 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:10:07,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:10:07,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:07,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:10:07,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:07,539 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 01:10:07,543 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 01:10:07,548 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 01:10:07,557 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 13 treesize of output 9 [2022-11-22 01:10:07,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:07,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:07,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:07,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:07,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:07,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:07,767 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:10:07,768 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 208 treesize of output 197 [2022-11-22 01:10:07,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:10:07,917 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 13 treesize of output 9 [2022-11-22 01:10:07,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:07,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:07,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:07,957 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:07,959 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:07,961 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:07,963 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:07,965 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:08,027 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:10:08,027 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 208 treesize of output 197 [2022-11-22 01:10:08,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:08,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:08,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:08,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:08,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:08,213 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:08,216 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:08,218 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:08,219 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:08,221 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:08,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:08,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:08,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:08,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:10:08,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:08,499 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 133 treesize of output 117 [2022-11-22 01:10:08,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:08,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 117 [2022-11-22 01:10:08,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:08,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 109 [2022-11-22 01:10:08,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:08,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:08,794 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 01:10:08,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:08,905 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:08,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:08,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:10:08,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:08,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:08,942 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:08,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:09,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:09,076 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:09,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:09,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:09,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:09,108 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:09,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:09,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:10:09,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:09,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:09,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:09,376 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-22 01:10:09,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:09,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:10:09,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:10:09,411 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 01:10:09,418 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 11 treesize of output 7 [2022-11-22 01:10:09,431 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 13 treesize of output 9 [2022-11-22 01:10:09,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:09,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:09,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:09,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:09,451 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:10:14,807 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3201#(and (or (not (<= (+ |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|))) (not (<= 0 |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|))) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (= |ULTIMATE.start_sll_circular_prepend_~data#1| (select (select |#memory_int| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) 4)) (< |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| |#StackHeapBarrier|) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_prepend_#in~data#1| |ULTIMATE.start_sll_circular_prepend_~data#1|) (= |ULTIMATE.start_sll_circular_prepend_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_sll_circular_prepend_#in~head#1.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) 0) 0) (= 8 (select |#length| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) (<= (+ |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_prepend_~head#1.base|)) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) 1) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) 0) 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) 0))) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (not (= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| 0)) (= 1 (select |#valid| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_prepend_#in~data#1| |ULTIMATE.start_main_~data~0#1|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|)) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 01:10:14,808 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:10:14,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:10:14,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2022-11-22 01:10:14,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730117035] [2022-11-22 01:10:14,808 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:10:14,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-22 01:10:14,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:14,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-22 01:10:14,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=2002, Unknown=2, NotChecked=90, Total=2256 [2022-11-22 01:10:14,810 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand has 27 states, 20 states have (on average 2.05) internal successors, (41), 23 states have internal predecessors, (41), 4 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-22 01:10:16,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:16,710 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2022-11-22 01:10:16,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 01:10:16,710 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 20 states have (on average 2.05) internal successors, (41), 23 states have internal predecessors, (41), 4 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 30 [2022-11-22 01:10:16,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:16,711 INFO L225 Difference]: With dead ends: 120 [2022-11-22 01:10:16,711 INFO L226 Difference]: Without dead ends: 120 [2022-11-22 01:10:16,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=285, Invalid=3137, Unknown=4, NotChecked=114, Total=3540 [2022-11-22 01:10:16,714 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 356 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 92 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:16,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 888 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1107 Invalid, 3 Unknown, 92 Unchecked, 1.1s Time] [2022-11-22 01:10:16,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-22 01:10:16,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 79. [2022-11-22 01:10:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 55 states have (on average 1.490909090909091) internal successors, (82), 74 states have internal predecessors, (82), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:16,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2022-11-22 01:10:16,719 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 30 [2022-11-22 01:10:16,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:16,719 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2022-11-22 01:10:16,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 20 states have (on average 2.05) internal successors, (41), 23 states have internal predecessors, (41), 4 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-22 01:10:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2022-11-22 01:10:16,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:10:16,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:16,721 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:16,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:16,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:16,923 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:10:16,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:16,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1176638737, now seen corresponding path program 1 times [2022-11-22 01:10:16,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:16,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276459101] [2022-11-22 01:10:16,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:16,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:17,622 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:10:17,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:17,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276459101] [2022-11-22 01:10:17,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276459101] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:17,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414168187] [2022-11-22 01:10:17,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:17,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:17,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:17,627 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:17,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:10:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:17,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-22 01:10:17,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:17,938 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:10:17,939 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 15 treesize of output 21 [2022-11-22 01:10:17,946 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 6 treesize of output 4 [2022-11-22 01:10:18,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2022-11-22 01:10:18,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:18,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:18,179 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:10:18,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:18,191 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 32 treesize of output 28 [2022-11-22 01:10:18,203 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-22 01:10:18,203 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 12 treesize of output 11 [2022-11-22 01:10:18,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414168187] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:18,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [508641256] [2022-11-22 01:10:18,484 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:10:18,484 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:10:18,485 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:10:18,485 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:10:18,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:10:18,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:10:18,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:18,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:10:18,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:18,560 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 01:10:18,565 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 01:10:18,569 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 01:10:18,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:18,581 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 13 treesize of output 9 [2022-11-22 01:10:18,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:18,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:18,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:18,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:18,780 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:10:18,780 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 208 treesize of output 197 [2022-11-22 01:10:18,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:18,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:18,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:10:18,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:18,931 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 13 treesize of output 9 [2022-11-22 01:10:18,943 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:18,945 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:18,947 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:18,948 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:18,950 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:19,018 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:10:19,019 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 208 treesize of output 197 [2022-11-22 01:10:19,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:19,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:19,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:19,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:19,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:19,186 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:19,189 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:19,191 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:19,192 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:19,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:10:19,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:19,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:19,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,442 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 133 treesize of output 117 [2022-11-22 01:10:19,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:19,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 117 [2022-11-22 01:10:19,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:19,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 113 [2022-11-22 01:10:19,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:19,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:19,727 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 01:10:19,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:19,842 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:19,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:19,852 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 7 treesize of output 5 [2022-11-22 01:10:19,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:19,872 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:19,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:19,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:20,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:10:20,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:20,017 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:20,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:20,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:20,036 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:20,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:20,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:20,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:20,221 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 188 treesize of output 172 [2022-11-22 01:10:20,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:20,252 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-22 01:10:20,253 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 2 case distinctions, treesize of input 191 treesize of output 186 [2022-11-22 01:10:20,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:20,279 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 01:10:20,279 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 2 case distinctions, treesize of input 183 treesize of output 174 [2022-11-22 01:10:20,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:20,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 330 treesize of output 306 [2022-11-22 01:10:20,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:20,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:20,489 INFO L321 Elim1Store]: treesize reduction 16, result has 50.0 percent of original size [2022-11-22 01:10:20,490 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 2 case distinctions, treesize of input 333 treesize of output 332 [2022-11-22 01:10:20,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:20,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:20,531 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 01:10:20,531 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 2 case distinctions, treesize of input 325 treesize of output 308 [2022-11-22 01:10:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:20,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:20,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:20,876 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-22 01:10:20,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:10:20,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:20,907 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:20,914 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 01:10:20,920 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 01:10:20,935 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 13 treesize of output 9 [2022-11-22 01:10:20,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:20,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:20,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:20,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:20,955 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:10:26,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [508641256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:26,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:10:26,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [18, 18] total 44 [2022-11-22 01:10:26,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473892671] [2022-11-22 01:10:26,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:26,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-22 01:10:26,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:26,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-22 01:10:26,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=2226, Unknown=17, NotChecked=0, Total=2450 [2022-11-22 01:10:26,935 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:31,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:31,386 INFO L93 Difference]: Finished difference Result 120 states and 132 transitions. [2022-11-22 01:10:31,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 01:10:31,387 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2022-11-22 01:10:31,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:31,391 INFO L225 Difference]: With dead ends: 120 [2022-11-22 01:10:31,391 INFO L226 Difference]: Without dead ends: 120 [2022-11-22 01:10:31,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=320, Invalid=3323, Unknown=17, NotChecked=0, Total=3660 [2022-11-22 01:10:31,393 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 297 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:31,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 221 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 01:10:31,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-22 01:10:31,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 84. [2022-11-22 01:10:31,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 60 states have (on average 1.45) internal successors, (87), 79 states have internal predecessors, (87), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2022-11-22 01:10:31,397 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 33 [2022-11-22 01:10:31,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:31,397 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2022-11-22 01:10:31,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:31,397 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2022-11-22 01:10:31,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 01:10:31,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:31,403 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-22 01:10:31,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:31,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 01:10:31,603 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:10:31,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:31,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1186114917, now seen corresponding path program 1 times [2022-11-22 01:10:31,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:31,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560447828] [2022-11-22 01:10:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:31,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:32,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:32,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560447828] [2022-11-22 01:10:32,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560447828] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:32,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918572888] [2022-11-22 01:10:32,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:32,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:32,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:32,857 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:32,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:10:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:33,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-22 01:10:33,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:33,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:33,328 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:10:33,329 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 01:10:33,461 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 01:10:33,546 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-22 01:10:33,547 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 44 treesize of output 37 [2022-11-22 01:10:33,619 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:33,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 22 [2022-11-22 01:10:33,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:33,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:33,764 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (= |c_#valid| (store |c_old(#valid)| |node_create_~temp~0#1.base| (select |c_#valid| |node_create_~temp~0#1.base|))) (exists ((v_ArrVal_1113 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |node_create_~temp~0#1.base| v_ArrVal_1113) |c_#memory_$Pointer$.offset|)) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)) (exists ((v_ArrVal_1114 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_1114) |c_#memory_$Pointer$.base|)))) is different from true [2022-11-22 01:10:33,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:10:33,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,802 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:10:33,802 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 45 treesize of output 43 [2022-11-22 01:10:33,838 INFO L321 Elim1Store]: treesize reduction 76, result has 36.1 percent of original size [2022-11-22 01:10:33,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 52 [2022-11-22 01:10:33,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:34,034 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:34,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 25 [2022-11-22 01:10:34,086 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-22 01:10:34,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:34,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918572888] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:34,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [66991604] [2022-11-22 01:10:34,243 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:10:34,243 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:10:34,243 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:10:34,244 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:10:34,244 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:10:34,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:10:34,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:34,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:34,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:10:34,314 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 01:10:34,318 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 01:10:34,323 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 01:10:34,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:34,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:34,351 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 13 treesize of output 9 [2022-11-22 01:10:34,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:34,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:34,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:34,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,484 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:34,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:34,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:34,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:34,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,575 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:34,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:34,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:34,647 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 01:10:34,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:34,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:10:34,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:34,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,790 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:34,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:34,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:34,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:34,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,914 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:34,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:34,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:34,964 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 01:10:34,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:34,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:35,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-22 01:10:35,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:35,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 236 [2022-11-22 01:10:35,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:35,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 252 [2022-11-22 01:10:35,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,185 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:35,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:35,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:35,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:35,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,277 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:35,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:35,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:35,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:35,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,401 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:35,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:35,471 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 01:10:35,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:10:35,502 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 01:10:35,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:10:35,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:10:35,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,565 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:35,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:35,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,633 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:35,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:35,654 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:10:35,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2022-11-22 01:10:35,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,687 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:35,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 01:10:35,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,709 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:35,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 01:10:35,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,746 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:35,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:35,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,818 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:35,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 01:10:35,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,842 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:35,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 01:10:35,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,878 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:10:35,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2022-11-22 01:10:35,900 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:35,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:36,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,287 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:36,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:36,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:36,330 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 11 for LOIs [2022-11-22 01:10:36,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:10:36,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:36,352 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 01:10:36,357 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 01:10:36,363 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 01:10:36,376 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:10:36,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:36,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:36,392 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:10:42,114 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4007#(and (<= 1 |ULTIMATE.start_sll_circular_prepend_~data#1|) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) 1)) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:10:42,114 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:10:42,114 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:10:42,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 35 [2022-11-22 01:10:42,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788247062] [2022-11-22 01:10:42,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:10:42,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-22 01:10:42,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:42,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-22 01:10:42,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=2863, Unknown=2, NotChecked=108, Total=3192 [2022-11-22 01:10:42,117 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand has 36 states, 26 states have (on average 2.0384615384615383) internal successors, (53), 30 states have internal predecessors, (53), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:10:43,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:43,544 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2022-11-22 01:10:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:10:43,545 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 26 states have (on average 2.0384615384615383) internal successors, (53), 30 states have internal predecessors, (53), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 34 [2022-11-22 01:10:43,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:43,546 INFO L225 Difference]: With dead ends: 120 [2022-11-22 01:10:43,546 INFO L226 Difference]: Without dead ends: 120 [2022-11-22 01:10:43,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=302, Invalid=3606, Unknown=2, NotChecked=122, Total=4032 [2022-11-22 01:10:43,548 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 261 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:43,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 914 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1416 Invalid, 0 Unknown, 86 Unchecked, 1.0s Time] [2022-11-22 01:10:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-22 01:10:43,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 85. [2022-11-22 01:10:43,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 61 states have (on average 1.459016393442623) internal successors, (89), 80 states have internal predecessors, (89), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:43,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2022-11-22 01:10:43,553 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 34 [2022-11-22 01:10:43,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:43,553 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2022-11-22 01:10:43,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 26 states have (on average 2.0384615384615383) internal successors, (53), 30 states have internal predecessors, (53), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:10:43,554 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2022-11-22 01:10:43,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 01:10:43,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:43,555 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-22 01:10:43,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:43,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-22 01:10:43,759 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:10:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:43,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1186114918, now seen corresponding path program 1 times [2022-11-22 01:10:43,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:43,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825706284] [2022-11-22 01:10:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:43,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:45,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:45,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825706284] [2022-11-22 01:10:45,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825706284] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:45,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562333916] [2022-11-22 01:10:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:45,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:45,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:45,526 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:45,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:10:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:45,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 111 conjunts are in the unsatisfiable core [2022-11-22 01:10:45,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:45,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:46,052 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:10:46,053 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 01:10:46,207 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 01:10:46,220 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 01:10:46,329 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-22 01:10:46,329 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 91 treesize of output 72 [2022-11-22 01:10:46,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-22 01:10:46,436 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:46,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 38 [2022-11-22 01:10:46,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2022-11-22 01:10:46,627 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (exists ((v_ArrVal_1250 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_1250) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_1246 Int)) (= (store |c_old(#length)| |node_create_~temp~0#1.base| v_ArrVal_1246) |c_#length|)) (< |node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_1249 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |node_create_~temp~0#1.base| v_ArrVal_1249))) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)))) is different from true [2022-11-22 01:10:46,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:46,663 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:10:46,663 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 85 treesize of output 75 [2022-11-22 01:10:46,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:46,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:46,693 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 01:10:46,694 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 83 treesize of output 80 [2022-11-22 01:10:46,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:46,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-11-22 01:10:46,724 INFO L321 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-11-22 01:10:46,724 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 32 treesize of output 34 [2022-11-22 01:10:47,004 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:47,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 42 [2022-11-22 01:10:47,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2022-11-22 01:10:47,052 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-22 01:10:47,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:47,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562333916] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:47,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1546044214] [2022-11-22 01:10:47,595 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:10:47,595 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:10:47,595 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:10:47,595 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:10:47,595 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:10:47,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:10:47,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:47,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:47,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:10:47,662 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 01:10:47,666 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 01:10:47,670 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 01:10:47,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:47,684 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 13 treesize of output 9 [2022-11-22 01:10:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:47,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:47,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:47,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,812 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:47,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:47,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:47,845 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 01:10:47,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:47,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:47,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:47,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:47,900 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:47,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:47,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:47,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:47,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:47,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:47,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:48,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:48,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:48,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-22 01:10:48,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:48,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 236 [2022-11-22 01:10:48,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:48,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2022-11-22 01:10:48,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:48,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:48,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:48,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:10:48,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:48,479 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 01:10:48,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:48,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:48,555 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:48,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:48,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:48,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:10:48,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:48,598 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:48,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:48,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:10:48,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:48,683 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:48,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:48,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:48,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:48,715 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:48,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:49,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:49,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:49,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:49,158 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-22 01:10:49,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:49,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:10:49,187 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 01:10:49,192 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 01:10:49,200 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 01:10:49,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:49,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:49,220 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 13 treesize of output 9 [2022-11-22 01:10:49,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:49,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:49,231 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:10:54,616 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4422#(and (<= 1 |ULTIMATE.start_sll_circular_prepend_~data#1|) (or (not (<= (+ |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|))) (not (<= 0 |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|))) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:10:54,616 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:10:54,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:10:54,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 41 [2022-11-22 01:10:54,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586973505] [2022-11-22 01:10:54,617 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:10:54,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-22 01:10:54,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:54,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-22 01:10:54,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=4046, Unknown=2, NotChecked=128, Total=4422 [2022-11-22 01:10:54,620 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand has 42 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 34 states have internal predecessors, (56), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:10:57,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:57,957 INFO L93 Difference]: Finished difference Result 168 states and 184 transitions. [2022-11-22 01:10:57,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 01:10:57,958 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 34 states have internal predecessors, (56), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 34 [2022-11-22 01:10:57,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:57,959 INFO L225 Difference]: With dead ends: 168 [2022-11-22 01:10:57,960 INFO L226 Difference]: Without dead ends: 168 [2022-11-22 01:10:57,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1906 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=409, Invalid=5913, Unknown=2, NotChecked=156, Total=6480 [2022-11-22 01:10:57,962 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 377 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 2249 mSolverCounterSat, 27 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 2453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2249 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 175 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:57,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1485 Invalid, 2453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2249 Invalid, 2 Unknown, 175 Unchecked, 1.9s Time] [2022-11-22 01:10:57,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-22 01:10:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 88. [2022-11-22 01:10:57,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 64 states have (on average 1.4375) internal successors, (92), 83 states have internal predecessors, (92), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2022-11-22 01:10:57,966 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 34 [2022-11-22 01:10:57,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:57,966 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2022-11-22 01:10:57,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 34 states have internal predecessors, (56), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:10:57,967 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2022-11-22 01:10:57,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 01:10:57,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:57,968 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-22 01:10:57,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:58,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 01:10:58,174 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:10:58,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:58,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1173425166, now seen corresponding path program 1 times [2022-11-22 01:10:58,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:58,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783390889] [2022-11-22 01:10:58,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:58,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:10:58,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:58,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783390889] [2022-11-22 01:10:58,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783390889] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:58,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443256662] [2022-11-22 01:10:58,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:58,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:58,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:58,683 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:58,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:10:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:58,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-22 01:10:58,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:59,078 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 01:10:59,122 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int) (v_ArrVal_1399 (Array Int Int))) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_1399)))) is different from true [2022-11-22 01:10:59,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2022-11-22 01:10:59,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-22 01:10:59,174 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-11-22 01:10:59,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:59,223 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_node_create_~temp~0#1.base_50| Int) (v_ArrVal_1403 (Array Int Int))) (or (not (< |v_node_create_~temp~0#1.base_50| |c_#StackHeapBarrier|)) (not (= 0 (select (select (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_50| v_ArrVal_1403) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))))) is different from false [2022-11-22 01:10:59,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443256662] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:59,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1208952045] [2022-11-22 01:10:59,227 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-22 01:10:59,227 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:10:59,227 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:10:59,227 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:10:59,228 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:10:59,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:10:59,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:59,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:59,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:10:59,298 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 01:10:59,302 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 01:10:59,306 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 01:10:59,313 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 13 treesize of output 9 [2022-11-22 01:10:59,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:59,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:10:59,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:59,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:10:59,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,440 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:59,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:59,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:59,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:10:59,501 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 13 treesize of output 9 [2022-11-22 01:10:59,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:59,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:59,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,547 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:59,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:59,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:59,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:59,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:59,603 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 13 treesize of output 9 [2022-11-22 01:10:59,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:10:59,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:59,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:10:59,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:59,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,736 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:59,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:59,767 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 13 treesize of output 9 [2022-11-22 01:10:59,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:59,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:59,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:59,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:10:59,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,837 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:59,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:10:59,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:10:59,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:59,885 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 13 treesize of output 9 [2022-11-22 01:10:59,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:59,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:59,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:59,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:10:59,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:59,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:11:00,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,008 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:00,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:11:00,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:11:00,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:00,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:00,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:00,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:11:00,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,114 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:00,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:11:00,146 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 13 treesize of output 9 [2022-11-22 01:11:00,159 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 01:11:00,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:00,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:00,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:11:00,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,245 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:00,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:11:00,300 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 01:11:00,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:11:00,335 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 01:11:00,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:11:00,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:11:00,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,401 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:00,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:11:00,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:00,494 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:11:00,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2022-11-22 01:11:00,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,520 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:00,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 01:11:00,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,544 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:00,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 01:11:00,572 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:00,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:00,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,607 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:00,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:11:00,674 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:11:00,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2022-11-22 01:11:00,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:00,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,717 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:00,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 01:11:00,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,749 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:00,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 01:11:00,769 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:00,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:00,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:00,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:00,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 328 treesize of output 312 [2022-11-22 01:11:00,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:00,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:01,004 INFO L321 Elim1Store]: treesize reduction 55, result has 16.7 percent of original size [2022-11-22 01:11:01,004 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 5 case distinctions, treesize of input 333 treesize of output 327 [2022-11-22 01:11:01,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:01,027 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:01,041 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 01:11:01,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 333 treesize of output 324 [2022-11-22 01:11:01,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:01,152 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 320 treesize of output 302 [2022-11-22 01:11:01,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:01,183 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 01:11:01,183 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 2 case distinctions, treesize of input 323 treesize of output 314 [2022-11-22 01:11:01,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:01,227 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 01:11:01,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 315 treesize of output 306 [2022-11-22 01:11:01,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:01,444 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:01,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:11:01,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:01,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:01,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:11:01,485 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 11 for LOIs [2022-11-22 01:11:01,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:11:01,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:11:01,504 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 01:11:01,509 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 01:11:01,513 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 01:11:01,522 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 13 treesize of output 9 [2022-11-22 01:11:01,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:01,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:01,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:01,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:01,538 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:11:10,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1208952045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:10,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:11:10,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [15, 15] total 43 [2022-11-22 01:11:10,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842614264] [2022-11-22 01:11:10,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:10,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-22 01:11:10,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:10,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-22 01:11:10,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1570, Unknown=2, NotChecked=166, Total=1980 [2022-11-22 01:11:10,296 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:11:11,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:11,816 INFO L93 Difference]: Finished difference Result 122 states and 135 transitions. [2022-11-22 01:11:11,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 01:11:11,816 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2022-11-22 01:11:11,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:11,817 INFO L225 Difference]: With dead ends: 122 [2022-11-22 01:11:11,817 INFO L226 Difference]: Without dead ends: 122 [2022-11-22 01:11:11,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=242, Invalid=1570, Unknown=2, NotChecked=166, Total=1980 [2022-11-22 01:11:11,819 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 60 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:11,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 206 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-22 01:11:11,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-22 01:11:11,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 88. [2022-11-22 01:11:11,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 64 states have (on average 1.421875) internal successors, (91), 83 states have internal predecessors, (91), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:11:11,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2022-11-22 01:11:11,822 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 35 [2022-11-22 01:11:11,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:11,823 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2022-11-22 01:11:11,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:11:11,823 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2022-11-22 01:11:11,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 01:11:11,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:11,824 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-22 01:11:11,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:12,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-22 01:11:12,031 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:11:12,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:12,031 INFO L85 PathProgramCache]: Analyzing trace with hash -767332763, now seen corresponding path program 1 times [2022-11-22 01:11:12,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:12,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372269060] [2022-11-22 01:11:12,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:12,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:12,861 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:12,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:12,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372269060] [2022-11-22 01:11:12,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372269060] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:12,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890395818] [2022-11-22 01:11:12,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:12,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:12,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:12,863 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:12,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 01:11:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:13,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-22 01:11:13,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:13,239 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 01:11:13,274 WARN L859 $PredicateComparison]: unable to prove that (and (< |c_node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_1540 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_node_create_~temp~0#1.base| v_ArrVal_1540) |c_#memory_$Pointer$.base|))) is different from true [2022-11-22 01:11:13,280 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (< |node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_1541 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_1541) |c_#memory_$Pointer$.base|)))) is different from true [2022-11-22 01:11:13,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2022-11-22 01:11:13,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-22 01:11:13,353 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2022-11-22 01:11:13,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:13,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890395818] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:13,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1482581040] [2022-11-22 01:11:13,460 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-22 01:11:13,460 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:11:13,460 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:11:13,461 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:11:13,461 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:11:13,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:11:13,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:11:13,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:11:13,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:11:13,528 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 01:11:13,531 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 01:11:13,535 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 01:11:13,541 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 13 treesize of output 9 [2022-11-22 01:11:13,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:13,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:13,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:13,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:11:13,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:13,713 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:11:13,713 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 208 treesize of output 197 [2022-11-22 01:11:13,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:13,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:13,833 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 13 treesize of output 9 [2022-11-22 01:11:13,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:13,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:11:13,866 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:13,868 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:13,869 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:13,872 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:13,873 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:13,930 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:11:13,930 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 208 treesize of output 197 [2022-11-22 01:11:14,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:11:14,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:14,100 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 13 treesize of output 9 [2022-11-22 01:11:14,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:14,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:14,132 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:14,135 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:14,137 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:14,138 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:14,139 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:14,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:11:14,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:11:14,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:11:14,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:14,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:14,372 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 01:11:14,563 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 01:11:14,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:14,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:14,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:14,702 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:14,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:14,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:11:14,724 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:14,728 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:14,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:14,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:14,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:14,844 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:14,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:14,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:11:14,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:14,877 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:14,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:14,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:14,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:11:14,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:11:15,007 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 01:11:15,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:15,044 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 01:11:15,045 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 19 treesize of output 18 [2022-11-22 01:11:15,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:15,068 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 01:11:15,068 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 19 treesize of output 18 [2022-11-22 01:11:15,078 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 01:11:15,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:15,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:15,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:11:15,548 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-22 01:11:15,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:11:15,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:11:15,575 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 01:11:15,580 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 01:11:15,594 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 01:11:15,610 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 13 treesize of output 9 [2022-11-22 01:11:15,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:15,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:15,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:15,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:15,630 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:11:20,570 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5305#(and (<= 1 |ULTIMATE.start_sll_circular_prepend_~data#1|) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (not (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1)) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:11:20,570 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:11:20,570 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:11:20,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 15] total 33 [2022-11-22 01:11:20,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173339069] [2022-11-22 01:11:20,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:11:20,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-22 01:11:20,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:20,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-22 01:11:20,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=2860, Unknown=6, NotChecked=218, Total=3306 [2022-11-22 01:11:20,573 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 33 states, 28 states have (on average 2.0) internal successors, (56), 29 states have internal predecessors, (56), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-22 01:11:21,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:21,365 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2022-11-22 01:11:21,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:11:21,365 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 2.0) internal successors, (56), 29 states have internal predecessors, (56), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 38 [2022-11-22 01:11:21,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:21,366 INFO L225 Difference]: With dead ends: 82 [2022-11-22 01:11:21,366 INFO L226 Difference]: Without dead ends: 82 [2022-11-22 01:11:21,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=305, Invalid=3728, Unknown=7, NotChecked=250, Total=4290 [2022-11-22 01:11:21,369 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 163 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 148 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:21,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 691 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 717 Invalid, 0 Unknown, 148 Unchecked, 0.5s Time] [2022-11-22 01:11:21,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-22 01:11:21,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2022-11-22 01:11:21,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 57 states have (on average 1.4385964912280702) internal successors, (82), 75 states have internal predecessors, (82), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:11:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2022-11-22 01:11:21,372 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 38 [2022-11-22 01:11:21,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:21,373 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2022-11-22 01:11:21,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 2.0) internal successors, (56), 29 states have internal predecessors, (56), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-22 01:11:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2022-11-22 01:11:21,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 01:11:21,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:21,374 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:21,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-22 01:11:21,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-22 01:11:21,579 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:11:21,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:21,580 INFO L85 PathProgramCache]: Analyzing trace with hash 691000446, now seen corresponding path program 2 times [2022-11-22 01:11:21,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:21,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324476789] [2022-11-22 01:11:21,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:21,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:23,268 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:23,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:23,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324476789] [2022-11-22 01:11:23,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324476789] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:23,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429125377] [2022-11-22 01:11:23,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:11:23,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:23,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:23,269 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:23,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-22 01:11:23,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:11:23,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:11:23,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 121 conjunts are in the unsatisfiable core [2022-11-22 01:11:23,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:23,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:11:23,859 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:23,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 01:11:24,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:24,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:24,126 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:24,136 INFO L321 Elim1Store]: treesize reduction 37, result has 28.8 percent of original size [2022-11-22 01:11:24,137 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 95 treesize of output 49 [2022-11-22 01:11:24,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-22 01:11:25,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:25,491 INFO L321 Elim1Store]: treesize reduction 72, result has 29.4 percent of original size [2022-11-22 01:11:25,492 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 6 case distinctions, treesize of input 107 treesize of output 82 [2022-11-22 01:11:25,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:25,523 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-22 01:11:25,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 56 [2022-11-22 01:11:25,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:25,547 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-22 01:11:25,547 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 1 case distinctions, treesize of input 20 treesize of output 18 [2022-11-22 01:11:26,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:26,868 INFO L321 Elim1Store]: treesize reduction 33, result has 8.3 percent of original size [2022-11-22 01:11:26,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 44 [2022-11-22 01:11:27,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:27,097 INFO L321 Elim1Store]: treesize reduction 102, result has 15.7 percent of original size [2022-11-22 01:11:27,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 78 treesize of output 57 [2022-11-22 01:11:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:27,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:27,235 INFO L321 Elim1Store]: treesize reduction 5, result has 75.0 percent of original size [2022-11-22 01:11:27,235 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 24 treesize of output 23 [2022-11-22 01:11:29,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429125377] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:29,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1666332161] [2022-11-22 01:11:29,837 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:11:29,837 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:11:29,837 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:11:29,837 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:11:29,837 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:11:29,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:29,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:29,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:11:29,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:29,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:29,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:11:29,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:11:29,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:11:29,906 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 01:11:29,911 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 01:11:29,915 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 01:11:29,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:29,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:29,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:29,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:29,935 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 13 treesize of output 9 [2022-11-22 01:11:29,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:29,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:29,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:29,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:29,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:29,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:11:30,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:30,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:30,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:30,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:30,047 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:30,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:11:30,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:30,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:30,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:30,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:30,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:30,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:30,140 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:30,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:11:30,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:30,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:30,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:30,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:30,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:30,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:30,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:30,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-22 01:11:30,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:30,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 236 [2022-11-22 01:11:30,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:30,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2022-11-22 01:11:30,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:30,468 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 01:11:30,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:30,620 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 01:11:30,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:30,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:30,707 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 01:11:30,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:30,725 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:30,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:30,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:11:30,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:30,754 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:30,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:30,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:30,825 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:30,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:30,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:30,843 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:30,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:30,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:30,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:11:31,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:11:31,151 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-22 01:11:31,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:11:31,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:11:31,181 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 01:11:31,187 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 01:11:31,195 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 01:11:31,209 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 13 treesize of output 9 [2022-11-22 01:11:31,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:31,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:31,229 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:11:35,615 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5714#(and (<= 1 |ULTIMATE.start_sll_circular_prepend_~data#1|) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) 1)) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:11:35,616 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:11:35,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:11:35,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 48 [2022-11-22 01:11:35,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623871451] [2022-11-22 01:11:35,616 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:11:35,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-22 01:11:35,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:35,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-22 01:11:35,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=5094, Unknown=7, NotChecked=0, Total=5402 [2022-11-22 01:11:35,619 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 49 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 42 states have internal predecessors, (63), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:11:39,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:39,832 INFO L93 Difference]: Finished difference Result 147 states and 161 transitions. [2022-11-22 01:11:39,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-22 01:11:39,833 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 42 states have internal predecessors, (63), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 38 [2022-11-22 01:11:39,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:39,835 INFO L225 Difference]: With dead ends: 147 [2022-11-22 01:11:39,835 INFO L226 Difference]: Without dead ends: 147 [2022-11-22 01:11:39,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2737 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=614, Invalid=8691, Unknown=7, NotChecked=0, Total=9312 [2022-11-22 01:11:39,838 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 472 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 24 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:39,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 828 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1872 Invalid, 3 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 01:11:39,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-11-22 01:11:39,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 81. [2022-11-22 01:11:39,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 76 states have internal predecessors, (84), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:11:39,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2022-11-22 01:11:39,843 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 38 [2022-11-22 01:11:39,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:39,844 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2022-11-22 01:11:39,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 42 states have internal predecessors, (63), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:11:39,844 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2022-11-22 01:11:39,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 01:11:39,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:39,845 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:39,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:40,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:40,046 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:11:40,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:40,047 INFO L85 PathProgramCache]: Analyzing trace with hash 691000447, now seen corresponding path program 2 times [2022-11-22 01:11:40,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:40,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944058780] [2022-11-22 01:11:40,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:40,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:41,621 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:41,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:41,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944058780] [2022-11-22 01:11:41,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944058780] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:41,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51276604] [2022-11-22 01:11:41,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:11:41,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:41,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:41,627 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:41,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-22 01:11:41,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:11:41,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:11:41,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 130 conjunts are in the unsatisfiable core [2022-11-22 01:11:41,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:41,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:11:42,218 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:42,219 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 01:11:42,349 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 01:11:42,358 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 01:11:42,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:42,461 INFO L321 Elim1Store]: treesize reduction 37, result has 28.8 percent of original size [2022-11-22 01:11:42,462 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 140 treesize of output 82 [2022-11-22 01:11:42,467 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 102 treesize of output 68 [2022-11-22 01:11:43,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:43,116 INFO L321 Elim1Store]: treesize reduction 122, result has 19.7 percent of original size [2022-11-22 01:11:43,116 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 146 treesize of output 108 [2022-11-22 01:11:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:43,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:43,138 INFO L321 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-11-22 01:11:43,138 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 72 [2022-11-22 01:11:43,159 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-22 01:11:43,160 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 01:11:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:44,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:45,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51276604] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:45,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [555283717] [2022-11-22 01:11:45,794 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:11:45,794 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:11:45,794 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:11:45,794 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:11:45,795 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:11:45,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:11:45,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:11:45,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:11:45,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:11:45,862 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 01:11:45,867 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 01:11:45,871 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 01:11:45,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:45,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:45,892 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 13 treesize of output 9 [2022-11-22 01:11:45,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:45,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:11:45,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:45,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:46,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:46,022 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:46,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:11:46,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:46,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:46,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:46,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:46,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:46,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:46,151 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:46,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 21 treesize of output 17 [2022-11-22 01:11:46,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:46,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:46,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:46,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:46,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:46,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:46,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:46,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-22 01:11:46,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:46,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 236 [2022-11-22 01:11:46,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:46,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 252 [2022-11-22 01:11:46,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:46,513 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 01:11:46,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:46,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:46,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:46,705 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 01:11:46,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:46,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:46,782 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:46,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:46,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:11:46,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:46,818 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:46,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:46,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:46,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:46,905 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:46,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:46,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:46,924 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:46,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:46,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:11:47,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:47,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:47,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:11:47,237 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-22 01:11:47,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:11:47,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:11:47,266 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 01:11:47,272 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 01:11:47,294 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 01:11:47,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:47,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:47,313 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 13 treesize of output 9 [2022-11-22 01:11:47,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:47,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:11:47,326 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:11:52,123 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6209#(and (<= 1 |ULTIMATE.start_sll_circular_prepend_~data#1|) (or (not (<= (+ |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|))) (not (<= 0 |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|))) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:11:52,123 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:11:52,123 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:11:52,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 26] total 46 [2022-11-22 01:11:52,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179345292] [2022-11-22 01:11:52,124 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:11:52,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-22 01:11:52,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:52,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-22 01:11:52,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=4283, Unknown=6, NotChecked=0, Total=4556 [2022-11-22 01:11:52,126 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 46 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 40 states have internal predecessors, (62), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:11:55,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:55,105 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2022-11-22 01:11:55,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 01:11:55,106 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 40 states have internal predecessors, (62), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 38 [2022-11-22 01:11:55,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:55,107 INFO L225 Difference]: With dead ends: 69 [2022-11-22 01:11:55,107 INFO L226 Difference]: Without dead ends: 69 [2022-11-22 01:11:55,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2013 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=458, Invalid=6676, Unknown=6, NotChecked=0, Total=7140 [2022-11-22 01:11:55,108 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 162 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:55,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 888 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1402 Invalid, 1 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 01:11:55,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-22 01:11:55,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2022-11-22 01:11:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 62 states have internal predecessors, (67), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:11:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2022-11-22 01:11:55,112 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 38 [2022-11-22 01:11:55,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:55,112 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2022-11-22 01:11:55,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 40 states have internal predecessors, (62), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:11:55,113 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2022-11-22 01:11:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-22 01:11:55,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:55,114 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-22 01:11:55,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:55,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:55,321 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:11:55,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:55,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1929221290, now seen corresponding path program 1 times [2022-11-22 01:11:55,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:55,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673828943] [2022-11-22 01:11:55,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:55,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:56,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:56,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673828943] [2022-11-22 01:11:56,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673828943] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:56,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514529999] [2022-11-22 01:11:56,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:56,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:56,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:56,237 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:56,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 01:11:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:56,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-22 01:11:56,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:56,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:56,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:11:56,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,949 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 16 treesize of output 18 [2022-11-22 01:11:57,115 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 17 treesize of output 9 [2022-11-22 01:11:57,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:57,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:57,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-22 01:11:57,375 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 26 treesize of output 14 [2022-11-22 01:11:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:57,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:11:57,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514529999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:57,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:11:57,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [18] total 33 [2022-11-22 01:11:57,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577297169] [2022-11-22 01:11:57,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:57,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-22 01:11:57,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:57,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-22 01:11:57,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1039, Unknown=2, NotChecked=0, Total=1122 [2022-11-22 01:11:57,380 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand has 19 states, 15 states have (on average 2.2) internal successors, (33), 16 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:11:58,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:58,476 INFO L93 Difference]: Finished difference Result 131 states and 140 transitions. [2022-11-22 01:11:58,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-22 01:11:58,476 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 2.2) internal successors, (33), 16 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-11-22 01:11:58,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:58,477 INFO L225 Difference]: With dead ends: 131 [2022-11-22 01:11:58,478 INFO L226 Difference]: Without dead ends: 131 [2022-11-22 01:11:58,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=179, Invalid=1711, Unknown=2, NotChecked=0, Total=1892 [2022-11-22 01:11:58,479 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 518 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:58,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 296 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 578 Invalid, 3 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:11:58,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-22 01:11:58,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 68. [2022-11-22 01:11:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 63 states have internal predecessors, (69), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:11:58,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2022-11-22 01:11:58,484 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 39 [2022-11-22 01:11:58,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:58,485 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2022-11-22 01:11:58,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 2.2) internal successors, (33), 16 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:11:58,485 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2022-11-22 01:11:58,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-22 01:11:58,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:58,486 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-22 01:11:58,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:58,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:58,691 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:11:58,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:58,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1929221289, now seen corresponding path program 1 times [2022-11-22 01:11:58,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:58,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118174229] [2022-11-22 01:11:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:58,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:59,521 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:11:59,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:59,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118174229] [2022-11-22 01:11:59,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118174229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:59,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:59,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:11:59,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121591107] [2022-11-22 01:11:59,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:59,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:11:59,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:59,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:11:59,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:11:59,523 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand has 10 states, 7 states have (on average 4.142857142857143) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:11:59,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:59,800 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2022-11-22 01:11:59,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:11:59,803 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 4.142857142857143) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-11-22 01:11:59,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:59,804 INFO L225 Difference]: With dead ends: 72 [2022-11-22 01:11:59,804 INFO L226 Difference]: Without dead ends: 72 [2022-11-22 01:11:59,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:11:59,805 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 146 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:59,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 211 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:11:59,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-22 01:11:59,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2022-11-22 01:11:59,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.392156862745098) internal successors, (71), 65 states have internal predecessors, (71), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:11:59,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2022-11-22 01:11:59,808 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 39 [2022-11-22 01:11:59,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:59,809 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2022-11-22 01:11:59,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 4.142857142857143) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:11:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2022-11-22 01:11:59,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-22 01:11:59,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:59,810 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-22 01:11:59,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 01:11:59,810 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:11:59,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:59,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1444214425, now seen corresponding path program 1 times [2022-11-22 01:11:59,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:59,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954176279] [2022-11-22 01:11:59,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:59,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:12:00,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:00,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954176279] [2022-11-22 01:12:00,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954176279] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:12:00,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018010696] [2022-11-22 01:12:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:00,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:12:00,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:12:00,984 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:12:00,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-22 01:12:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:01,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 93 conjunts are in the unsatisfiable core [2022-11-22 01:12:01,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:12:01,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:12:01,501 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:12:01,501 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 01:12:01,632 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 01:12:01,730 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-22 01:12:01,731 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 56 treesize of output 49 [2022-11-22 01:12:01,810 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:12:01,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 22 [2022-11-22 01:12:01,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:12:01,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:12:01,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:01,991 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:12:01,991 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 53 treesize of output 51 [2022-11-22 01:12:02,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,004 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 51 treesize of output 49 [2022-11-22 01:12:02,026 INFO L321 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-11-22 01:12:02,026 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 32 treesize of output 34 [2022-11-22 01:12:02,163 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 01:12:02,273 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:12:02,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 18 [2022-11-22 01:12:02,309 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:12:02,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:12:02,515 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2219 (Array Int Int)) (|v_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base_45| Int) (v_ArrVal_2220 (Array Int Int))) (or (not (< |v_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base_45| |c_#StackHeapBarrier|)) (not (= (select |c_#valid| |v_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base_45|) 0)) (not (let ((.cse1 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base_45| v_ArrVal_2220))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (= .cse0 (select (select .cse1 .cse0) (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base_45| v_ArrVal_2219) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)))))))) is different from false [2022-11-22 01:12:02,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018010696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:12:02,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1184594478] [2022-11-22 01:12:02,519 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-22 01:12:02,519 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:12:02,520 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:12:02,520 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:12:02,520 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:12:02,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:12:02,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:12:02,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:12:02,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:12:02,580 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 01:12:02,585 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 01:12:02,589 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 01:12:02,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:12:02,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:12:02,619 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 13 treesize of output 9 [2022-11-22 01:12:02,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:12:02,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:12:02,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:02,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:12:02,819 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:12:02,820 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 208 treesize of output 197 [2022-11-22 01:12:03,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:12:03,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:12:03,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:12:03,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:12:03,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:12:03,103 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:12:03,105 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:12:03,107 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:12:03,108 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:12:03,160 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 01:12:03,161 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 208 treesize of output 197 [2022-11-22 01:12:03,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:12:03,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:12:03,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:12:03,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:12:03,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:12:03,399 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:12:03,400 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:12:03,402 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:12:03,404 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:12:03,482 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:03,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:03,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-22 01:12:03,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:03,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 236 [2022-11-22 01:12:03,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:03,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 252 [2022-11-22 01:12:03,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:03,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:03,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 120 [2022-11-22 01:12:03,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:03,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 122 [2022-11-22 01:12:03,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:03,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 114 [2022-11-22 01:12:03,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:12:03,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:12:03,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:12:03,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:03,832 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:12:03,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:12:03,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:12:03,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:03,857 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:12:03,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:12:03,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:12:03,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:12:03,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:12:03,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:03,935 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:12:03,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:12:03,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:03,955 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:12:03,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:12:04,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:04,133 INFO L321 Elim1Store]: treesize reduction 59, result has 32.2 percent of original size [2022-11-22 01:12:04,133 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 57 [2022-11-22 01:12:04,168 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 01:12:04,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2022-11-22 01:12:04,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:12:04,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:12:04,287 INFO L321 Elim1Store]: treesize reduction 41, result has 26.8 percent of original size [2022-11-22 01:12:04,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 52 [2022-11-22 01:12:04,327 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 01:12:04,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2022-11-22 01:12:04,395 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-22 01:12:04,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2022-11-22 01:12:04,458 INFO L321 Elim1Store]: treesize reduction 60, result has 31.0 percent of original size [2022-11-22 01:12:04,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 60 [2022-11-22 01:12:04,517 INFO L321 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2022-11-22 01:12:04,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 31 [2022-11-22 01:12:04,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:04,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:04,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 33 [2022-11-22 01:12:04,676 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 20 for LOIs [2022-11-22 01:12:04,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:12:04,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:12:04,726 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 01:12:04,743 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 01:12:04,749 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 01:12:04,765 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 13 treesize of output 9 [2022-11-22 01:12:04,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:04,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:12:04,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:04,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:12:04,789 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:12:15,987 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7136#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (< |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| |#StackHeapBarrier|) (= |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| 4) (= |ULTIMATE.start_sll_circular_prepend_#in~data#1| |ULTIMATE.start_sll_circular_prepend_~data#1|) (= |ULTIMATE.start_sll_circular_prepend_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (= |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) |ULTIMATE.start_main_~data~0#1|)) (= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_sll_circular_prepend_#in~head#1.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= 8 (select |#length| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |ULTIMATE.start_main_~count~0#1| 0) (<= (+ |ULTIMATE.start_main_~#s~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#s~0#1.base|)) (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) 1) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (not (= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| 0)) (= 1 (select |#valid| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_prepend_#in~data#1| |ULTIMATE.start_main_~data~0#1|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:12:15,988 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:12:15,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:12:15,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 38 [2022-11-22 01:12:15,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619220169] [2022-11-22 01:12:15,988 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:12:15,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-22 01:12:15,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:15,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-22 01:12:15,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=4291, Unknown=1, NotChecked=132, Total=4692 [2022-11-22 01:12:15,990 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 38 states, 29 states have (on average 1.9655172413793103) internal successors, (57), 31 states have internal predecessors, (57), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:12:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:17,553 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2022-11-22 01:12:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-22 01:12:17,553 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 29 states have (on average 1.9655172413793103) internal successors, (57), 31 states have internal predecessors, (57), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 41 [2022-11-22 01:12:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:17,554 INFO L225 Difference]: With dead ends: 87 [2022-11-22 01:12:17,554 INFO L226 Difference]: Without dead ends: 87 [2022-11-22 01:12:17,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1783 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=398, Invalid=5457, Unknown=1, NotChecked=150, Total=6006 [2022-11-22 01:12:17,555 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 243 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:17,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 552 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:12:17,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-22 01:12:17,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 70. [2022-11-22 01:12:17,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 65 states have internal predecessors, (70), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:12:17,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2022-11-22 01:12:17,559 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 41 [2022-11-22 01:12:17,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:17,560 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2022-11-22 01:12:17,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 29 states have (on average 1.9655172413793103) internal successors, (57), 31 states have internal predecessors, (57), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:12:17,560 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2022-11-22 01:12:17,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-22 01:12:17,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:17,561 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:12:17,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-22 01:12:17,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:12:17,762 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-22 01:12:17,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:17,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1882500768, now seen corresponding path program 1 times [2022-11-22 01:12:17,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:17,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483360184] [2022-11-22 01:12:17,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:17,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:12:21,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:21,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483360184] [2022-11-22 01:12:21,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483360184] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:12:21,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299196948] [2022-11-22 01:12:21,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:21,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:12:21,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:12:21,366 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:12:21,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634a46cf-a3f4-419c-8d8d-e743076b950e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-22 01:12:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:21,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 136 conjunts are in the unsatisfiable core [2022-11-22 01:12:21,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:12:21,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:12:21,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:12:22,079 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:12:22,079 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 01:12:22,259 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 01:12:22,416 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-22 01:12:22,416 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 55 treesize of output 42 [2022-11-22 01:12:22,540 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:12:22,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 25 [2022-11-22 01:12:22,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:12:22,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:12:22,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:12:22,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:22,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:12:22,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:22,897 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:12:22,898 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 58 treesize of output 50 [2022-11-22 01:12:22,922 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-22 01:12:22,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:12:23,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:12:23,651 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2022-11-22 01:12:23,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 61 treesize of output 34 [2022-11-22 01:12:23,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:12:23,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:12:23,932 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 01:12:23,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:23,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:12:24,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:24,061 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 35 treesize of output 33 [2022-11-22 01:12:24,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:12:24,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:24,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:12:24,205 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 28 treesize of output 16 [2022-11-22 01:12:24,210 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 15 treesize of output 7 [2022-11-22 01:12:24,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:12:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:12:24,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:12:24,501 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2387 (Array Int Int)) (v_ArrVal_2386 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2386) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2387) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2022-11-22 01:12:24,508 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:12:24,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-11-22 01:12:24,532 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:12:24,532 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 84 treesize of output 87 [2022-11-22 01:12:24,540 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:12:24,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 64 [2022-11-22 01:12:24,547 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 28 treesize of output 26 [2022-11-22 01:12:24,561 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:12:24,562 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 110 treesize of output 109 [2022-11-22 01:12:24,569 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 94 treesize of output 90 [2022-11-22 01:12:25,669 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse27 (= |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|))) (let ((.cse35 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse66 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388)) (.cse67 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse66 v_arrayElimCell_1111) .cse67)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse66 v_arrayElimCell_1110) .cse67)))))) (.cse5 (+ |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 4)) (.cse52 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) v_arrayElimCell_1111) (+ v_arrayElimCell_1114 4))))) (.cse2 (not .cse27))) (let ((.cse26 (or (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse65 (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse65 (+ v_arrayElimCell_1114 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse65 .cse5))))) .cse52) .cse2)) (.cse16 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse63 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse62 (select .cse63 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse62 (+ v_arrayElimCell_1113 4))) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse64 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse63 v_arrayElimCell_1111) .cse64)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse62 .cse64)))))))))) (.cse19 (or .cse2 (and .cse35 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse61 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse59 (select .cse61 v_arrayElimCell_1111)) (.cse60 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse59 .cse60)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse59 (+ v_arrayElimCell_1113 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse61 v_arrayElimCell_1110) .cse60))))))))) (.cse20 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse58 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse55 (+ v_arrayElimCell_1113 4)) (.cse54 (select .cse58 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse54 .cse55)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse56 (select .cse58 v_arrayElimCell_1111)) (.cse57 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse56 .cse57)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse56 .cse55)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse54 .cse57)))))))))) (.cse21 (or .cse27 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) v_arrayElimCell_1110) (+ v_arrayElimCell_1113 4)))))) (.cse25 (or (and .cse52 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse53 (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse53 (+ v_arrayElimCell_1114 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse53 (+ v_arrayElimCell_1113 4))))))) .cse2)) (.cse7 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse50 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388)) (.cse51 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse50 v_arrayElimCell_1111) .cse51)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse50 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse51))))))) (let ((.cse1 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse17 (or .cse2 (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse49 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse47 (select .cse49 v_arrayElimCell_1111)) (.cse48 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse47 .cse48)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse47 (+ v_arrayElimCell_1113 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse49 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse48)))))) .cse7))) (.cse18 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse46 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse45 (select .cse46 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (.cse44 (+ v_arrayElimCell_1113 4))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse42 (select .cse46 v_arrayElimCell_1111)) (.cse43 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse42 .cse43)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse42 .cse44)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse45 .cse43))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse45 .cse44))))))) (.cse22 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse40 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse39 (select .cse40 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse39 (+ v_arrayElimCell_1113 4))) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse41 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse40 v_arrayElimCell_1111) .cse41)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse39 .cse41)))))))))) (.cse24 (and .cse16 .cse19 .cse20 .cse21 .cse25)) (.cse23 (or .cse27 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) (+ v_arrayElimCell_1113 4)))))) (.cse15 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse0 (and (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse29 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse28 (select .cse29 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse28 .cse5)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse30 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse29 v_arrayElimCell_1111) .cse30)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse28 .cse30))))))))) .cse26 (or .cse27 (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) v_arrayElimCell_1110) .cse5)))) (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse34 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse31 (select .cse34 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse31 .cse5)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse32 (select .cse34 v_arrayElimCell_1111)) (.cse33 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse32 .cse33)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse32 .cse5)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse31 .cse33))))))))) (or (and .cse35 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse38 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse36 (select .cse38 v_arrayElimCell_1111)) (.cse37 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse36 .cse37)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse36 .cse5)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse38 v_arrayElimCell_1110) .cse37))))))) .cse2)))) (and (or .cse0 .cse1) (or .cse2 (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse6 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse3 (select .cse6 v_arrayElimCell_1111)) (.cse4 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse3 .cse4)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse3 .cse5)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse6 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse4)))))) .cse7)) (forall ((v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse9 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse8 (select .cse9 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= (select .cse8 .cse5) |c_ULTIMATE.start_main_~data~0#1|) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse10 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse9 v_arrayElimCell_1111) .cse10)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse8 .cse10))))))))) (forall ((v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse14 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse11 (select .cse14 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= (select .cse11 .cse5) |c_ULTIMATE.start_main_~data~0#1|) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse12 (select .cse14 v_arrayElimCell_1111)) (.cse13 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse12 .cse13)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse12 .cse5)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse11 .cse13))))))))) (or .cse15 (and .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 (or .cse1 .cse24) .cse25)) .cse26 (or .cse1 (and .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 (or .cse15 .cse24) .cse23 .cse25)) (or .cse15 .cse0) (or .cse27 (forall ((v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse5) |c_ULTIMATE.start_main_~data~0#1|)))))))) is different from false [2022-11-22 01:12:26,807 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse8 (= |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse7 (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (let ((.cse5 (+ |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 4)) (.cse43 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse67 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388)) (.cse68 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse67 v_arrayElimCell_1110) .cse68)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse67 v_arrayElimCell_1111) .cse68)))))) (.cse52 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) v_arrayElimCell_1111) (+ v_arrayElimCell_1114 4))))) (.cse9 (not .cse8))) (let ((.cse13 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse65 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388)) (.cse66 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse65 v_arrayElimCell_1111) .cse66)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse65 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse66)))))) (.cse15 (or (and .cse52 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse64 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse64 (+ v_arrayElimCell_1114 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse64 (+ v_arrayElimCell_1113 4))))))) .cse9)) (.cse16 (or .cse8 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) v_arrayElimCell_1110) (+ v_arrayElimCell_1113 4)))))) (.cse17 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse63 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse61 (select .cse63 v_arrayElimCell_1110))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse62 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse61 .cse62)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse63 v_arrayElimCell_1111) .cse62))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse61 (+ v_arrayElimCell_1113 4)))))))) (.cse23 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse60 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse56 (select .cse60 v_arrayElimCell_1110)) (.cse59 (+ v_arrayElimCell_1113 4))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse57 (+ v_arrayElimCell_1114 4)) (.cse58 (select .cse60 v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse56 .cse57)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse58 .cse57)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse58 .cse59))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse56 .cse59))))))) (.cse24 (or .cse9 (and .cse43 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse53 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse54 (+ v_arrayElimCell_1114 4)) (.cse55 (select .cse53 v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse53 v_arrayElimCell_1110) .cse54)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse55 .cse54)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse55 (+ v_arrayElimCell_1113 4)))))))))) (.cse28 (or (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse51 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse51 (+ v_arrayElimCell_1114 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse51 .cse5))))) .cse52) .cse9))) (let ((.cse0 (and (or .cse9 (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse40 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse41 (+ v_arrayElimCell_1114 4)) (.cse42 (select .cse40 v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse40 v_arrayElimCell_1110) .cse41)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse42 .cse41)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse42 .cse5)))))) .cse43)) (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse47 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse44 (select .cse47 v_arrayElimCell_1110))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse45 (+ v_arrayElimCell_1114 4)) (.cse46 (select .cse47 v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse44 .cse45)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse46 .cse45)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse46 .cse5))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse44 .cse5)))))) (or .cse8 (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) v_arrayElimCell_1110) .cse5)))) .cse28 (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse50 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse48 (select .cse50 v_arrayElimCell_1110))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse49 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse48 .cse49)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse50 v_arrayElimCell_1111) .cse49))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse48 .cse5)))))))) (.cse18 (or .cse8 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) (+ v_arrayElimCell_1113 4)))))) (.cse19 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse37 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse39 (select .cse37 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse38 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse37 v_arrayElimCell_1111) .cse38)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse39 .cse38))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse39 (+ v_arrayElimCell_1113 4)))))))) (.cse14 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse20 (and .cse15 .cse16 .cse17 .cse23 .cse24)) (.cse21 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse36 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse35 (select .cse36 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (.cse34 (+ v_arrayElimCell_1113 4))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse32 (select .cse36 v_arrayElimCell_1111)) (.cse33 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse32 .cse33)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse32 .cse34)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse35 .cse33))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse35 .cse34))))))) (.cse22 (or .cse9 (and .cse13 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse31 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse29 (select .cse31 v_arrayElimCell_1111)) (.cse30 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse29 .cse30)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse29 (+ v_arrayElimCell_1113 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse31 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse30))))))))) (.cse1 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|))) (and (or .cse0 .cse1) (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse6 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse4 (select .cse6 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse3 (+ v_arrayElimCell_1114 4)) (.cse2 (select .cse6 v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse2 .cse3)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse4 .cse3)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse2 .cse5))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse4 .cse5)))))) (or .cse8 (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse5)))) (or .cse9 (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse12 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse11 (+ v_arrayElimCell_1114 4)) (.cse10 (select .cse12 v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse10 .cse11)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse12 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse11)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse10 .cse5)))))) .cse13)) (or .cse14 .cse0) (or (and .cse15 .cse16 .cse17 .cse18 .cse19 (or .cse1 .cse20) .cse21 .cse22 .cse23 .cse24) .cse14) (or (and .cse15 .cse16 .cse17 .cse18 .cse19 (or .cse14 .cse20) .cse21 .cse22 .cse23 .cse24) .cse1) (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse25 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2388))) (let ((.cse27 (select .cse25 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse26 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse25 v_arrayElimCell_1111) .cse26)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse27 .cse26))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse27 .cse5)))))) .cse28))))) is different from false [2022-11-22 01:12:32,200 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|))) (let ((.cse5 (= .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (let ((.cse30 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse68 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388)) (.cse69 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse68 v_arrayElimCell_1111) .cse69)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse68 v_arrayElimCell_1110) .cse69)))))) (.cse22 (not .cse5)) (.cse4 (+ |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 4)) (.cse56 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388) v_arrayElimCell_1111) (+ v_arrayElimCell_1114 4)))))) (let ((.cse17 (or .cse22 (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse67 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388) v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse67 (+ v_arrayElimCell_1114 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse67 .cse4))))) .cse56))) (.cse26 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse65 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388)) (.cse66 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse65 v_arrayElimCell_1111) .cse66)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse65 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse66)))))) (.cse9 (or .cse22 (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse64 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse62 (select .cse64 v_arrayElimCell_1111)) (.cse63 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse62 (+ v_arrayElimCell_1113 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse62 .cse63)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse64 v_arrayElimCell_1110) .cse63)))))) .cse30))) (.cse11 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse61 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse58 (+ v_arrayElimCell_1113 4)) (.cse57 (select .cse61 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse57 .cse58)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse59 (select .cse61 v_arrayElimCell_1111)) (.cse60 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse59 .cse58)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse59 .cse60)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse57 .cse60)))))))))) (.cse13 (or .cse5 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388) v_arrayElimCell_1110) (+ v_arrayElimCell_1113 4)))))) (.cse14 (or (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse55 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388) v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse55 (+ v_arrayElimCell_1113 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse55 (+ v_arrayElimCell_1114 4)))))) .cse56) .cse22)) (.cse16 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse53 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse52 (select .cse53 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse52 (+ v_arrayElimCell_1113 4))) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse54 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse53 v_arrayElimCell_1111) .cse54)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse52 .cse54))))))))))) (let ((.cse0 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse7 (and .cse9 .cse11 .cse13 .cse14 .cse16)) (.cse8 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse51 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse50 (select .cse51 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (.cse48 (+ v_arrayElimCell_1113 4))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse47 (select .cse51 v_arrayElimCell_1111)) (.cse49 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse47 .cse48)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse47 .cse49)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse50 .cse49))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse50 .cse48))))))) (.cse10 (or (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) (+ v_arrayElimCell_1113 4)))) .cse5)) (.cse12 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse45 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse44 (select .cse45 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse44 (+ v_arrayElimCell_1113 4))) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse46 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse45 v_arrayElimCell_1111) .cse46)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse44 .cse46)))))))))) (.cse15 (or .cse22 (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse43 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse41 (select .cse43 v_arrayElimCell_1111)) (.cse42 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse41 (+ v_arrayElimCell_1113 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse41 .cse42)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse43 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse42)))))) .cse26))) (.cse6 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse1 (and (or .cse5 (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388) v_arrayElimCell_1110) .cse4)))) (or .cse22 (and .cse30 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse33 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse31 (select .cse33 v_arrayElimCell_1111)) (.cse32 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse31 .cse32)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse31 .cse4)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse33 v_arrayElimCell_1110) .cse32)))))))) (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse35 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse34 (select .cse35 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse34 .cse4)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse36 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse35 v_arrayElimCell_1111) .cse36)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse34 .cse36))))))))) (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse40 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse39 (select .cse40 v_arrayElimCell_1110))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse37 (select .cse40 v_arrayElimCell_1111)) (.cse38 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse37 .cse38)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse37 .cse4)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse39 .cse38))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse39 .cse4)))))) .cse17))) (and (or .cse0 .cse1) (or (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse4))) .cse5) (or .cse6 (and (or .cse0 .cse7) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16)) (or .cse0 (and (or .cse6 .cse7) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16)) .cse17 (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse21 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse18 (select .cse21 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse18 .cse4)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse19 (select .cse21 v_arrayElimCell_1111)) (.cse20 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse19 .cse20)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse19 .cse4)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse18 .cse20))))))))) (or .cse6 .cse1) (or .cse22 (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse25 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse23 (select .cse25 v_arrayElimCell_1111)) (.cse24 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse23 .cse24)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse23 .cse4)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse25 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse24)))))) .cse26)) (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse28 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse3 v_ArrVal_2388))) (let ((.cse27 (select .cse28 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse27 .cse4)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse29 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse28 v_arrayElimCell_1111) .cse29)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse27 .cse29))))))))))))))) is different from false [2022-11-22 01:12:36,539 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse17 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)))) (let ((.cse18 (= .cse17 |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse16 (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (let ((.cse34 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse68 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388)) (.cse69 (+ v_arrayElimCell_1114 4))) (or (= (select (select .cse68 v_arrayElimCell_1111) .cse69) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse68 v_arrayElimCell_1110) .cse69)))))) (.cse20 (not .cse18)) (.cse13 (+ |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 4)) (.cse64 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388) v_arrayElimCell_1111) (+ v_arrayElimCell_1114 4)) |c_ULTIMATE.start_main_~data~0#1|)))) (let ((.cse19 (or .cse20 (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse67 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388) v_arrayElimCell_1111))) (or (= (select .cse67 (+ v_arrayElimCell_1114 4)) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse67 .cse13))))) .cse64))) (.cse21 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse65 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388)) (.cse66 (+ v_arrayElimCell_1114 4))) (or (= (select (select .cse65 v_arrayElimCell_1111) .cse66) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse65 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse66)))))) (.cse3 (or (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse63 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388) v_arrayElimCell_1111))) (or (= (select .cse63 (+ v_arrayElimCell_1114 4)) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse63 (+ v_arrayElimCell_1113 4)))))) .cse64) .cse20)) (.cse4 (or .cse20 (and .cse34 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse62 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse60 (select .cse62 v_arrayElimCell_1111)) (.cse61 (+ v_arrayElimCell_1114 4))) (or (= (select .cse60 .cse61) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse60 (+ v_arrayElimCell_1113 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse62 v_arrayElimCell_1110) .cse61))))))))) (.cse7 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse58 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse57 (select .cse58 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse57 (+ v_arrayElimCell_1113 4))) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse59 (+ v_arrayElimCell_1114 4))) (or (= (select (select .cse58 v_arrayElimCell_1111) .cse59) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse57 .cse59)))))))))) (.cse8 (or .cse18 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388) v_arrayElimCell_1110) (+ v_arrayElimCell_1113 4)))))) (.cse10 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse56 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse53 (+ v_arrayElimCell_1113 4)) (.cse52 (select .cse56 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse52 .cse53)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse54 (select .cse56 v_arrayElimCell_1111)) (.cse55 (+ v_arrayElimCell_1114 4))) (or (= (select .cse54 .cse55) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse54 .cse53)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse52 .cse55))))))))))) (let ((.cse0 (or (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) (+ v_arrayElimCell_1113 4)))) .cse18)) (.cse5 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse49 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse51 (select .cse49 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse50 (+ v_arrayElimCell_1114 4))) (or (= (select (select .cse49 v_arrayElimCell_1111) .cse50) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse51 .cse50))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse51 (+ v_arrayElimCell_1113 4)))))))) (.cse6 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse48 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse46 (select .cse48 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (.cse47 (+ v_arrayElimCell_1113 4))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse45 (+ v_arrayElimCell_1114 4)) (.cse44 (select .cse48 v_arrayElimCell_1111))) (or (= (select .cse44 .cse45) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse46 .cse45)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse44 .cse47))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse46 .cse47))))))) (.cse1 (and .cse3 .cse4 .cse7 .cse8 .cse10)) (.cse9 (or (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse43 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse42 (+ v_arrayElimCell_1114 4)) (.cse41 (select .cse43 v_arrayElimCell_1111))) (or (= (select .cse41 .cse42) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse43 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse42)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse41 (+ v_arrayElimCell_1113 4))))))) .cse21) .cse20)) (.cse2 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse11 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse29 (and (or .cse18 (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388) v_arrayElimCell_1110) .cse13)))) (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse33 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse32 (select .cse33 v_arrayElimCell_1110))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse30 (select .cse33 v_arrayElimCell_1111)) (.cse31 (+ v_arrayElimCell_1114 4))) (or (= (select .cse30 .cse31) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse30 .cse13)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse32 .cse31))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse32 .cse13)))))) (or (and .cse34 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse37 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse35 (select .cse37 v_arrayElimCell_1111)) (.cse36 (+ v_arrayElimCell_1114 4))) (or (= (select .cse35 .cse36) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse35 .cse13)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse37 v_arrayElimCell_1110) .cse36))))))) .cse20) .cse19 (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse39 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse38 (select .cse39 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse38 .cse13)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse40 (+ v_arrayElimCell_1114 4))) (or (= (select (select .cse39 v_arrayElimCell_1111) .cse40) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse38 .cse40)))))))))))) (and (or (and .cse0 (or .cse1 .cse2) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) .cse11) (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse14 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse12 (select .cse14 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse12 .cse13)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse15 (+ v_arrayElimCell_1114 4))) (or (= (select (select .cse14 v_arrayElimCell_1111) .cse15) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse12 .cse15))))))))) (or .cse2 (and .cse0 .cse3 .cse4 .cse5 .cse6 (or .cse1 .cse11) .cse7 .cse8 .cse9 .cse10)) (or .cse18 (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse13)))) .cse19 (or .cse20 (and .cse21 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse24 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse22 (select .cse24 v_arrayElimCell_1111)) (.cse23 (+ v_arrayElimCell_1114 4))) (or (= (select .cse22 .cse23) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse22 .cse13)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse24 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse23)))))))) (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse28 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse16 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse17 v_ArrVal_2388))) (let ((.cse25 (select .cse28 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse25 .cse13)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse26 (select .cse28 v_arrayElimCell_1111)) (.cse27 (+ v_arrayElimCell_1114 4))) (or (= (select .cse26 .cse27) |c_ULTIMATE.start_main_~data~0#1|) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse26 .cse13)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse25 .cse27))))))))) (or .cse2 .cse29) (or .cse11 .cse29))))))) is different from false [2022-11-22 01:12:39,759 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse19 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)))) (let ((.cse25 (= .cse19 |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse18 (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|))) (let ((.cse15 (+ |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| 4)) (.cse47 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse68 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388)) (.cse69 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse68 v_arrayElimCell_1111) .cse69)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse68 v_arrayElimCell_1110) .cse69)))))) (.cse53 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388) v_arrayElimCell_1111) (+ v_arrayElimCell_1114 4))))) (.cse21 (not .cse25))) (let ((.cse20 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse66 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388)) (.cse67 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse66 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|) .cse67)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse66 v_arrayElimCell_1111) .cse67)))))) (.cse1 (or (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse65 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388) v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse65 (+ v_arrayElimCell_1113 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse65 (+ v_arrayElimCell_1114 4)))))) .cse53) .cse21)) (.cse3 (or (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse64 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse62 (select .cse64 v_arrayElimCell_1111)) (.cse63 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse62 (+ v_arrayElimCell_1113 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse62 .cse63)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse64 v_arrayElimCell_1110) .cse63)))))) .cse47) .cse21)) (.cse6 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse61 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse58 (+ v_arrayElimCell_1113 4)) (.cse57 (select .cse61 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse57 .cse58)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse59 (select .cse61 v_arrayElimCell_1111)) (.cse60 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse59 .cse58)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse59 .cse60)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse57 .cse60)))))))))) (.cse9 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse54 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse56 (select .cse54 v_arrayElimCell_1110))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse55 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse54 v_arrayElimCell_1111) .cse55)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse56 .cse55))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse56 (+ v_arrayElimCell_1113 4)))))))) (.cse10 (or .cse25 (forall ((v_arrayElimCell_1110 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388) v_arrayElimCell_1110) (+ v_arrayElimCell_1113 4)))))) (.cse0 (or (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse52 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388) v_arrayElimCell_1111))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse52 .cse15)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse52 (+ v_arrayElimCell_1114 4)))))) .cse53) .cse21))) (let ((.cse13 (and .cse0 (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse41 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse43 (select .cse41 v_arrayElimCell_1110))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse42 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse41 v_arrayElimCell_1111) .cse42)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse43 .cse42))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse43 .cse15)))))) (or (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1110 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse46 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse44 (select .cse46 v_arrayElimCell_1111)) (.cse45 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse44 .cse15)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse44 .cse45)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse46 v_arrayElimCell_1110) .cse45)))))) .cse47) .cse21) (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse51 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse48 (select .cse51 v_arrayElimCell_1110))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse48 .cse15)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse49 (select .cse51 v_arrayElimCell_1111)) (.cse50 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse49 .cse15)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse49 .cse50)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse48 .cse50))))))))) (or (forall ((v_arrayElimCell_1110 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388) v_arrayElimCell_1110) .cse15))) .cse25))) (.cse8 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse40 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse37 (+ v_arrayElimCell_1113 4)) (.cse36 (select .cse40 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|))) (or (= (select .cse36 .cse37) |c_ULTIMATE.start_main_~data~0#1|) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse38 (select .cse40 v_arrayElimCell_1111)) (.cse39 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse38 .cse37)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse36 .cse39)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse38 .cse39)))))))))) (.cse7 (and .cse1 .cse3 .cse6 .cse9 .cse10)) (.cse12 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse4 (or .cse25 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388) |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|) (+ v_arrayElimCell_1113 4)) |c_ULTIMATE.start_main_~data~0#1|)))) (.cse5 (forall ((v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse35 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse33 (select .cse35 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|))) (or (= (select .cse33 (+ v_arrayElimCell_1113 4)) |c_ULTIMATE.start_main_~data~0#1|) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse34 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse33 .cse34)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse35 v_arrayElimCell_1111) .cse34)))))))))) (.cse11 (or .cse21 (and .cse20 (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_arrayElimCell_1113 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse31 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse30 (select .cse31 v_arrayElimCell_1111)) (.cse32 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse30 (+ v_arrayElimCell_1113 4))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse31 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|) .cse32)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse30 .cse32)))))))))) (and .cse0 (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (or .cse7 .cse8) .cse9 .cse10 .cse11) .cse12) (or .cse8 .cse13) (or (and (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int) (v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse16 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse14 (select .cse16 v_arrayElimCell_1111)) (.cse17 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse14 .cse15)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse16 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|) .cse17)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse14 .cse17)))))) .cse20) .cse21) (or .cse12 .cse13) (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse24 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse22 (select .cse24 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|))) (or (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse23 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse22 .cse23)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse24 v_arrayElimCell_1111) .cse23))))) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse22 .cse15)))))) (or .cse25 (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388) |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|) .cse15)))) (or .cse8 (and .cse1 .cse2 .cse3 (or .cse7 .cse12) .cse4 .cse5 .cse6 .cse9 .cse10 .cse11)) (forall ((v_ArrVal_2379 Int) (v_ArrVal_2388 (Array Int Int)) (v_ArrVal_2384 (Array Int Int))) (let ((.cse29 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store .cse18 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_2379)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2384) .cse19 v_ArrVal_2388))) (let ((.cse26 (select .cse29 |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse26 .cse15)) (forall ((v_arrayElimCell_1111 Int) (v_arrayElimCell_1114 Int)) (let ((.cse27 (select .cse29 v_arrayElimCell_1111)) (.cse28 (+ v_arrayElimCell_1114 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select .cse27 .cse15)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse26 .cse28)) (= |c_ULTIMATE.start_main_~data~0#1| (select .cse27 .cse28))))))))))))))) is different from false [2022-11-22 01:13:35,270 WARN L233 SmtUtils]: Spent 54.40s on a formula simplification that was a NOOP. DAG size: 536 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:13:35,271 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:13:35,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 59 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 59 new quantified variables, introduced 118 case distinctions, treesize of input 7181 treesize of output 22007 [2022-11-22 01:13:48,756 WARN L233 SmtUtils]: Spent 13.46s on a formula simplification. DAG size of input: 6640 DAG size of output: 6639 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:14:04,876 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 6401 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:14:13,211 WARN L233 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 6350 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:14:21,942 WARN L233 SmtUtils]: Spent 6.14s on a formula simplification that was a NOOP. DAG size: 6203 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:14:31,497 WARN L233 SmtUtils]: Spent 6.24s on a formula simplification that was a NOOP. DAG size: 6035 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:17:08,427 INFO L217 Elim1Store]: Index analysis took 154263 ms [2022-11-22 01:23:59,941 WARN L233 SmtUtils]: Spent 6.86m on a formula simplification. DAG size of input: 3094 DAG size of output: 87 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:23:59,941 INFO L321 Elim1Store]: treesize reduction 9513, result has 1.4 percent of original size [2022-11-22 01:23:59,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 58 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 434 case distinctions, treesize of input 11414 treesize of output 25252