./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:08:37,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:08:37,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:08:37,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:08:37,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:08:37,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:08:37,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:08:37,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:08:37,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:08:37,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:08:37,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:08:37,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:08:37,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:08:37,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:08:37,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:08:37,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:08:37,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:08:37,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:08:37,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:08:37,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:08:37,857 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:08:37,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:08:37,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:08:37,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:08:37,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:08:37,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:08:37,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:08:37,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:08:37,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:08:37,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:08:37,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:08:37,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:08:37,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:08:37,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:08:37,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:08:37,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:08:37,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:08:37,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:08:37,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:08:37,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:08:37,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:08:37,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:08:37,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:08:37,905 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:08:37,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:08:37,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:08:37,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:08:37,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:08:37,907 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:08:37,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:08:37,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:08:37,908 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:08:37,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:08:37,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:08:37,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:08:37,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:08:37,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:08:37,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:08:37,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:08:37,910 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:08:37,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:08:37,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:08:37,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:08:37,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:08:37,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:08:37,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:08:37,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:08:37,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:08:37,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:08:37,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:08:37,913 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:08:37,913 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:08:37,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:08:37,914 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2022-07-22 22:08:38,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:08:38,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:08:38,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:08:38,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:08:38,148 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:08:38,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2022-07-22 22:08:38,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b183c271f/382f0d85bef6458cb601a8cf7e42769a/FLAGca95a488f [2022-07-22 22:08:38,880 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:08:38,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2022-07-22 22:08:38,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b183c271f/382f0d85bef6458cb601a8cf7e42769a/FLAGca95a488f [2022-07-22 22:08:39,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b183c271f/382f0d85bef6458cb601a8cf7e42769a [2022-07-22 22:08:39,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:08:39,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:08:39,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:08:39,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:08:39,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:08:39,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:08:39" (1/1) ... [2022-07-22 22:08:39,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb0fbcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:39, skipping insertion in model container [2022-07-22 22:08:39,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:08:39" (1/1) ... [2022-07-22 22:08:39,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:08:39,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:08:39,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2022-07-22 22:08:39,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2022-07-22 22:08:39,899 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:08:39,947 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,948 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,948 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,949 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,950 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,964 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,971 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,975 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,976 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,977 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,979 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,979 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:39,983 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,186 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:08:40,187 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:08:40,188 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:08:40,189 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:08:40,190 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:08:40,191 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:08:40,191 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:08:40,192 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:08:40,193 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:08:40,193 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:08:40,283 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,284 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,287 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,293 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:08:40,385 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:08:40,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2022-07-22 22:08:40,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2022-07-22 22:08:40,443 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:08:40,455 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,455 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,456 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,456 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,457 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,467 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,468 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,469 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,469 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,470 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,471 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,471 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,471 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,500 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:08:40,500 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:08:40,501 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:08:40,502 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:08:40,502 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:08:40,503 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:08:40,503 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:08:40,504 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:08:40,504 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:08:40,505 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:08:40,542 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,542 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,543 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,548 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:08:40,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:08:40,762 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:08:40,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40 WrapperNode [2022-07-22 22:08:40,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:08:40,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:08:40,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:08:40,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:08:40,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (1/1) ... [2022-07-22 22:08:40,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (1/1) ... [2022-07-22 22:08:40,950 INFO L137 Inliner]: procedures = 691, calls = 1682, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 649 [2022-07-22 22:08:40,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:08:40,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:08:40,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:08:40,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:08:40,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (1/1) ... [2022-07-22 22:08:40,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (1/1) ... [2022-07-22 22:08:40,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (1/1) ... [2022-07-22 22:08:40,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (1/1) ... [2022-07-22 22:08:41,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (1/1) ... [2022-07-22 22:08:41,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (1/1) ... [2022-07-22 22:08:41,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (1/1) ... [2022-07-22 22:08:41,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:08:41,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:08:41,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:08:41,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:08:41,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (1/1) ... [2022-07-22 22:08:41,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:08:41,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:08:41,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 22:08:41,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 22:08:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 22:08:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-22 22:08:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-22 22:08:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-22 22:08:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-22 22:08:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-22 22:08:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-22 22:08:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 22:08:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-22 22:08:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-22 22:08:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 22:08:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 22:08:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 22:08:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:08:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 22:08:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-22 22:08:41,159 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-22 22:08:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:08:41,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:08:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-22 22:08:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-22 22:08:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-22 22:08:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-22 22:08:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-22 22:08:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-22 22:08:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 22:08:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 22:08:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-22 22:08:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-22 22:08:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 22:08:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 22:08:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:08:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-22 22:08:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-22 22:08:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-22 22:08:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-22 22:08:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-22 22:08:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-22 22:08:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 22:08:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-22 22:08:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-22 22:08:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 22:08:41,433 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:08:41,434 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:08:42,179 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:08:42,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:08:42,188 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 22:08:42,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:08:42 BoogieIcfgContainer [2022-07-22 22:08:42,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:08:42,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:08:42,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:08:42,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:08:42,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:08:39" (1/3) ... [2022-07-22 22:08:42,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c407012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:08:42, skipping insertion in model container [2022-07-22 22:08:42,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:08:40" (2/3) ... [2022-07-22 22:08:42,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c407012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:08:42, skipping insertion in model container [2022-07-22 22:08:42,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:08:42" (3/3) ... [2022-07-22 22:08:42,199 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2022-07-22 22:08:42,214 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:08:42,215 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 22:08:42,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:08:42,305 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3cbb25dd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@f750e59 [2022-07-22 22:08:42,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 22:08:42,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-07-22 22:08:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-22 22:08:42,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:08:42,323 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:08:42,324 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:08:42,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:08:42,331 INFO L85 PathProgramCache]: Analyzing trace with hash 223694820, now seen corresponding path program 1 times [2022-07-22 22:08:42,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:08:42,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744449274] [2022-07-22 22:08:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:08:42,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:08:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:42,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:08:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:42,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:08:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:08:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:08:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:42,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:08:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 22:08:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:42,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:08:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:43,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 22:08:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:08:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:43,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 22:08:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:43,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 22:08:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-07-22 22:08:43,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:08:43,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744449274] [2022-07-22 22:08:43,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744449274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:08:43,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:08:43,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:08:43,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505480378] [2022-07-22 22:08:43,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:08:43,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:08:43,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:08:43,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:08:43,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:08:43,086 INFO L87 Difference]: Start difference. First operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-22 22:08:43,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:08:43,709 INFO L93 Difference]: Finished difference Result 380 states and 580 transitions. [2022-07-22 22:08:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 22:08:43,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2022-07-22 22:08:43,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:08:43,723 INFO L225 Difference]: With dead ends: 380 [2022-07-22 22:08:43,723 INFO L226 Difference]: Without dead ends: 202 [2022-07-22 22:08:43,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:08:43,731 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 50 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 22:08:43,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 326 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 22:08:43,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-07-22 22:08:43,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 175. [2022-07-22 22:08:43,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-07-22 22:08:43,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 233 transitions. [2022-07-22 22:08:43,788 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 233 transitions. Word has length 69 [2022-07-22 22:08:43,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:08:43,789 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 233 transitions. [2022-07-22 22:08:43,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-22 22:08:43,789 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 233 transitions. [2022-07-22 22:08:43,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-22 22:08:43,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:08:43,798 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:08:43,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 22:08:43,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:08:43,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:08:43,799 INFO L85 PathProgramCache]: Analyzing trace with hash -636522710, now seen corresponding path program 1 times [2022-07-22 22:08:43,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:08:43,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981695242] [2022-07-22 22:08:43,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:08:43,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:08:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:43,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:08:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:08:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:08:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:08:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:08:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 22:08:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:08:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 22:08:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:08:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 22:08:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 22:08:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-22 22:08:44,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:08:44,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981695242] [2022-07-22 22:08:44,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981695242] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:08:44,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55611306] [2022-07-22 22:08:44,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:08:44,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:08:44,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:08:44,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:08:44,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 22:08:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:44,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1999 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 22:08:44,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:08:44,599 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-22 22:08:44,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:08:44,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55611306] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:08:44,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:08:44,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-22 22:08:44,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072226013] [2022-07-22 22:08:44,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:08:44,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:08:44,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:08:44,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:08:44,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:08:44,602 INFO L87 Difference]: Start difference. First operand 175 states and 233 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 22:08:44,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:08:44,906 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2022-07-22 22:08:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:08:44,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2022-07-22 22:08:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:08:44,917 INFO L225 Difference]: With dead ends: 315 [2022-07-22 22:08:44,917 INFO L226 Difference]: Without dead ends: 177 [2022-07-22 22:08:44,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-22 22:08:44,920 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 232 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:08:44,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 647 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:08:44,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-07-22 22:08:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-07-22 22:08:44,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 99 states have (on average 1.1414141414141414) internal successors, (113), 101 states have internal predecessors, (113), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2022-07-22 22:08:44,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2022-07-22 22:08:44,954 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 242 transitions. Word has length 69 [2022-07-22 22:08:44,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:08:44,954 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 242 transitions. [2022-07-22 22:08:44,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 22:08:44,954 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 242 transitions. [2022-07-22 22:08:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-22 22:08:44,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:08:44,956 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-22 22:08:44,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 22:08:45,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:08:45,186 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:08:45,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:08:45,187 INFO L85 PathProgramCache]: Analyzing trace with hash -164009474, now seen corresponding path program 1 times [2022-07-22 22:08:45,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:08:45,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909574597] [2022-07-22 22:08:45,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:08:45,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:08:45,265 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:08:45,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757997101] [2022-07-22 22:08:45,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:08:45,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:08:45,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:08:45,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:08:45,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 22:08:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:45,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 2140 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 22:08:45,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:08:45,744 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-22 22:08:45,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:08:45,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:08:45,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909574597] [2022-07-22 22:08:45,745 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:08:45,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757997101] [2022-07-22 22:08:45,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757997101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:08:45,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:08:45,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 22:08:45,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394944288] [2022-07-22 22:08:45,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:08:45,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 22:08:45,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:08:45,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 22:08:45,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 22:08:45,748 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-07-22 22:08:46,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:08:46,144 INFO L93 Difference]: Finished difference Result 326 states and 455 transitions. [2022-07-22 22:08:46,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 22:08:46,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2022-07-22 22:08:46,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:08:46,147 INFO L225 Difference]: With dead ends: 326 [2022-07-22 22:08:46,147 INFO L226 Difference]: Without dead ends: 189 [2022-07-22 22:08:46,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-22 22:08:46,149 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 250 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:08:46,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 968 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:08:46,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-07-22 22:08:46,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2022-07-22 22:08:46,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 107 states have internal predecessors, (120), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2022-07-22 22:08:46,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2022-07-22 22:08:46,182 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 259 transitions. Word has length 84 [2022-07-22 22:08:46,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:08:46,184 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 259 transitions. [2022-07-22 22:08:46,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-07-22 22:08:46,184 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2022-07-22 22:08:46,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-22 22:08:46,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:08:46,187 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:08:46,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 22:08:46,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-22 22:08:46,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:08:46,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:08:46,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1494755288, now seen corresponding path program 1 times [2022-07-22 22:08:46,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:08:46,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828621082] [2022-07-22 22:08:46,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:08:46,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:08:46,472 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:08:46,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1597654034] [2022-07-22 22:08:46,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:08:46,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:08:46,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:08:46,474 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:08:46,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 22:08:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:08:46,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 2422 conjuncts, 252 conjunts are in the unsatisfiable core [2022-07-22 22:08:46,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:08:47,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-07-22 22:08:47,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-07-22 22:08:48,507 INFO L356 Elim1Store]: treesize reduction 202, result has 38.6 percent of original size [2022-07-22 22:08:48,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 174 treesize of output 315 [2022-07-22 22:08:48,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:08:48,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:08:48,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:08:48,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 166 [2022-07-22 22:08:57,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:08:57,167 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-07-22 22:08:57,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:08:57,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:08:57,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:08:57,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:08:57,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:08:58,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:08:58,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:08:58,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:08:58,546 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-07-22 22:08:58,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:08:58,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:08:58,825 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-07-22 22:08:58,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:08:58,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:08:58,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:08:58,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:08:59,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:08:59,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:08:59,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:08:59,207 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-22 22:08:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:08:59,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:08:59,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:08:59,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:08:59,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:08:59,874 INFO L356 Elim1Store]: treesize reduction 24, result has 42.9 percent of original size [2022-07-22 22:08:59,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 86 treesize of output 80 [2022-07-22 22:09:00,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:00,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:00,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:00,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 45 [2022-07-22 22:09:01,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 15 [2022-07-22 22:09:01,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:09:02,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:02,158 INFO L356 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-07-22 22:09:02,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 80 [2022-07-22 22:09:02,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 15 [2022-07-22 22:09:02,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:02,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:02,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:02,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 45 [2022-07-22 22:09:03,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:03,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:09:03,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:09:03,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:09:03,627 INFO L356 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-07-22 22:09:03,627 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 80 [2022-07-22 22:09:03,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 15 [2022-07-22 22:09:03,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:03,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:03,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:03,883 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 45 [2022-07-22 22:09:04,302 INFO L356 Elim1Store]: treesize reduction 24, result has 42.9 percent of original size [2022-07-22 22:09:04,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 86 treesize of output 80 [2022-07-22 22:09:04,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 15 [2022-07-22 22:09:04,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:04,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:04,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:04,640 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 45 [2022-07-22 22:09:04,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:04,865 INFO L356 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-07-22 22:09:04,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 80 [2022-07-22 22:09:04,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 15 [2022-07-22 22:09:05,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:05,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:05,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:05,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 45 [2022-07-22 22:09:05,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:09:05,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:09:05,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:09:05,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:09:05,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:09:05,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:09:05,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:09:06,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:09:06,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:09:06,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:09:06,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:09:06,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:09:06,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:09:07,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:09:07,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:09:07,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 17 [2022-07-22 22:09:09,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:09:09,400 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-07-22 22:09:09,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 28 treesize of output 1 [2022-07-22 22:09:09,432 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-07-22 22:09:09,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 1 [2022-07-22 22:09:09,744 INFO L356 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-07-22 22:09:09,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 34 treesize of output 3 [2022-07-22 22:09:15,991 INFO L356 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-07-22 22:09:15,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 39 treesize of output 3 [2022-07-22 22:09:16,041 INFO L356 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2022-07-22 22:09:16,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 7 [2022-07-22 22:09:16,124 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-07-22 22:09:16,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 3 [2022-07-22 22:09:16,663 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-07-22 22:09:16,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 3 [2022-07-22 22:09:16,832 INFO L356 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-07-22 22:09:16,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 case distinctions, treesize of input 44 treesize of output 7 [2022-07-22 22:09:18,035 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-07-22 22:09:18,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 3 [2022-07-22 22:09:18,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:09:18,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2022-07-22 22:09:18,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:09:18,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2022-07-22 22:09:19,352 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-07-22 22:09:19,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 24 treesize of output 3 [2022-07-22 22:09:19,418 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-07-22 22:09:19,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 1 [2022-07-22 22:10:03,660 WARN L233 SmtUtils]: Spent 16.59s on a formula simplification. DAG size of input: 790 DAG size of output: 66 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:10:09,896 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_200 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_200)) |c_#memory_int|)) is different from true [2022-07-22 22:10:10,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:10:10,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:10:11,098 INFO L356 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-07-22 22:10:11,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 75 [2022-07-22 22:10:11,268 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-22 22:10:11,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-07-22 22:10:11,365 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2022-07-22 22:10:59,986 WARN L233 SmtUtils]: Spent 10.10s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:11:12,017 INFO L356 Elim1Store]: treesize reduction 375, result has 22.0 percent of original size [2022-07-22 22:11:12,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 44 case distinctions, treesize of input 291 treesize of output 466 [2022-07-22 22:11:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 26 proven. 59 refuted. 0 times theorem prover too weak. 6 trivial. 6 not checked. [2022-07-22 22:11:12,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:11:27,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:11:27,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828621082] [2022-07-22 22:11:27,585 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:11:27,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597654034] [2022-07-22 22:11:27,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597654034] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:11:27,587 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:11:27,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2022-07-22 22:11:27,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398023317] [2022-07-22 22:11:27,588 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:11:27,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-07-22 22:11:27,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:11:27,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-07-22 22:11:27,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=2668, Unknown=12, NotChecked=104, Total=2970 [2022-07-22 22:11:27,594 INFO L87 Difference]: Start difference. First operand 189 states and 259 transitions. Second operand has 51 states, 43 states have (on average 1.744186046511628) internal successors, (75), 38 states have internal predecessors, (75), 15 states have call successors, (19), 10 states have call predecessors, (19), 13 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2022-07-22 22:11:37,567 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 94 DAG size of output: 86 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:12:42,807 WARN L233 SmtUtils]: Spent 51.72s on a formula simplification. DAG size of input: 95 DAG size of output: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:12:45,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:12:45,632 INFO L93 Difference]: Finished difference Result 267 states and 368 transitions. [2022-07-22 22:12:45,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-07-22 22:12:45,633 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 43 states have (on average 1.744186046511628) internal successors, (75), 38 states have internal predecessors, (75), 15 states have call successors, (19), 10 states have call predecessors, (19), 13 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) Word has length 114 [2022-07-22 22:12:45,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:12:45,636 INFO L225 Difference]: With dead ends: 267 [2022-07-22 22:12:45,636 INFO L226 Difference]: Without dead ends: 265 [2022-07-22 22:12:45,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 64 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1477 ImplicationChecksByTransitivity, 136.6s TimeCoverageRelationStatistics Valid=318, Invalid=4782, Unknown=16, NotChecked=140, Total=5256 [2022-07-22 22:12:45,638 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 119 mSDsluCounter, 2515 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 5634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3711 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-22 22:12:45,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 2721 Invalid, 5634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1776 Invalid, 0 Unknown, 3711 Unchecked, 1.5s Time] [2022-07-22 22:12:45,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-07-22 22:12:45,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 251. [2022-07-22 22:12:45,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 146 states have (on average 1.1506849315068493) internal successors, (168), 152 states have internal predecessors, (168), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (100), 74 states have call predecessors, (100), 75 states have call successors, (100) [2022-07-22 22:12:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 344 transitions. [2022-07-22 22:12:45,688 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 344 transitions. Word has length 114 [2022-07-22 22:12:45,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:12:45,689 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 344 transitions. [2022-07-22 22:12:45,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 43 states have (on average 1.744186046511628) internal successors, (75), 38 states have internal predecessors, (75), 15 states have call successors, (19), 10 states have call predecessors, (19), 13 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2022-07-22 22:12:45,689 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 344 transitions. [2022-07-22 22:12:45,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-22 22:12:45,692 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:12:45,692 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:12:45,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-22 22:12:45,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:12:45,896 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:12:45,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:12:45,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1101728278, now seen corresponding path program 1 times [2022-07-22 22:12:45,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:12:45,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576467053] [2022-07-22 22:12:45,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:12:45,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:12:45,969 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:12:45,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1257956129] [2022-07-22 22:12:45,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:12:45,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:12:45,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:12:45,972 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:12:46,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 22:12:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:12:46,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 2417 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 22:12:46,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:12:46,397 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-07-22 22:12:46,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:12:46,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:12:46,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576467053] [2022-07-22 22:12:46,397 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:12:46,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257956129] [2022-07-22 22:12:46,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257956129] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:12:46,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:12:46,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:12:46,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261260284] [2022-07-22 22:12:46,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:12:46,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:12:46,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:12:46,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:12:46,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:12:46,400 INFO L87 Difference]: Start difference. First operand 251 states and 344 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-22 22:12:46,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:12:46,445 INFO L93 Difference]: Finished difference Result 435 states and 628 transitions. [2022-07-22 22:12:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:12:46,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 114 [2022-07-22 22:12:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:12:46,448 INFO L225 Difference]: With dead ends: 435 [2022-07-22 22:12:46,449 INFO L226 Difference]: Without dead ends: 256 [2022-07-22 22:12:46,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:12:46,454 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 7 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:12:46,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 691 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:12:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-07-22 22:12:46,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 253. [2022-07-22 22:12:46,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 148 states have (on average 1.1486486486486487) internal successors, (170), 154 states have internal predecessors, (170), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (100), 74 states have call predecessors, (100), 75 states have call successors, (100) [2022-07-22 22:12:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 346 transitions. [2022-07-22 22:12:46,476 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 346 transitions. Word has length 114 [2022-07-22 22:12:46,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:12:46,477 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 346 transitions. [2022-07-22 22:12:46,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-22 22:12:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 346 transitions. [2022-07-22 22:12:46,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-22 22:12:46,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:12:46,496 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:12:46,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 22:12:46,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:12:46,719 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:12:46,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:12:46,720 INFO L85 PathProgramCache]: Analyzing trace with hash 79756809, now seen corresponding path program 1 times [2022-07-22 22:12:46,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:12:46,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144754515] [2022-07-22 22:12:46,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:12:46,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:12:46,795 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:12:46,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856678743] [2022-07-22 22:12:46,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:12:46,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:12:46,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:12:46,798 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:12:46,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 22:12:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:12:47,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 2461 conjuncts, 63 conjunts are in the unsatisfiable core [2022-07-22 22:12:47,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:12:47,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-07-22 22:12:47,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-07-22 22:12:47,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 15 [2022-07-22 22:12:51,457 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-22 22:12:51,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 45 treesize of output 32 [2022-07-22 22:12:51,514 INFO L356 Elim1Store]: treesize reduction 30, result has 34.8 percent of original size [2022-07-22 22:12:51,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 33 [2022-07-22 22:12:51,648 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_427 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_427))) is different from true [2022-07-22 22:12:59,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:12:59,869 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-22 22:12:59,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:13:00,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:13:00,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144754515] [2022-07-22 22:13:00,080 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:13:00,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856678743] [2022-07-22 22:13:00,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856678743] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:13:00,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:13:00,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2022-07-22 22:13:00,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683073905] [2022-07-22 22:13:00,080 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:13:00,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-22 22:13:00,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:13:00,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-22 22:13:00,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=387, Unknown=18, NotChecked=40, Total=506 [2022-07-22 22:13:00,081 INFO L87 Difference]: Start difference. First operand 253 states and 346 transitions. Second operand has 22 states, 20 states have (on average 3.1) internal successors, (62), 18 states have internal predecessors, (62), 8 states have call successors, (18), 7 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-07-22 22:13:05,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:13:05,111 INFO L93 Difference]: Finished difference Result 505 states and 749 transitions. [2022-07-22 22:13:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-22 22:13:05,112 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.1) internal successors, (62), 18 states have internal predecessors, (62), 8 states have call successors, (18), 7 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 120 [2022-07-22 22:13:05,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:13:05,114 INFO L225 Difference]: With dead ends: 505 [2022-07-22 22:13:05,115 INFO L226 Difference]: Without dead ends: 324 [2022-07-22 22:13:05,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 160 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=86, Invalid=591, Unknown=29, NotChecked=50, Total=756 [2022-07-22 22:13:05,116 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 144 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 3199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2093 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 22:13:05,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1401 Invalid, 3199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 920 Invalid, 0 Unknown, 2093 Unchecked, 0.9s Time] [2022-07-22 22:13:05,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-07-22 22:13:05,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 264. [2022-07-22 22:13:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 156 states have (on average 1.1538461538461537) internal successors, (180), 163 states have internal predecessors, (180), 77 states have call successors, (77), 24 states have call predecessors, (77), 30 states have return successors, (104), 76 states have call predecessors, (104), 76 states have call successors, (104) [2022-07-22 22:13:05,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 361 transitions. [2022-07-22 22:13:05,143 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 361 transitions. Word has length 120 [2022-07-22 22:13:05,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:13:05,144 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 361 transitions. [2022-07-22 22:13:05,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.1) internal successors, (62), 18 states have internal predecessors, (62), 8 states have call successors, (18), 7 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-07-22 22:13:05,144 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 361 transitions. [2022-07-22 22:13:05,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-22 22:13:05,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:13:05,146 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:13:05,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 22:13:05,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:13:05,360 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:13:05,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:13:05,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1017548743, now seen corresponding path program 1 times [2022-07-22 22:13:05,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:13:05,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557862885] [2022-07-22 22:13:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:13:05,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:13:05,468 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:13:05,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352631043] [2022-07-22 22:13:05,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:13:05,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:13:05,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:13:05,470 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:13:05,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process