./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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_hash_table_move_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 ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 15:34:17,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 15:34:17,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 15:34:17,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 15:34:17,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 15:34:17,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 15:34:17,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 15:34:17,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 15:34:17,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 15:34:17,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 15:34:17,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 15:34:17,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 15:34:17,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 15:34:17,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 15:34:17,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 15:34:17,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 15:34:17,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 15:34:17,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 15:34:17,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 15:34:17,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 15:34:17,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 15:34:17,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 15:34:17,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 15:34:17,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 15:34:17,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 15:34:17,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 15:34:17,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 15:34:17,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 15:34:17,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 15:34:17,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 15:34:17,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 15:34:17,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 15:34:17,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 15:34:17,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 15:34:17,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 15:34:17,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 15:34:17,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 15:34:17,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 15:34:17,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 15:34:17,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 15:34:17,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 15:34:17,548 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 15:34:17,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 15:34:17,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 15:34:17,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 15:34:17,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 15:34:17,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 15:34:17,583 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 15:34:17,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 15:34:17,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 15:34:17,584 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 15:34:17,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 15:34:17,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 15:34:17,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 15:34:17,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 15:34:17,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 15:34:17,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 15:34:17,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 15:34:17,586 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 15:34:17,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 15:34:17,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 15:34:17,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 15:34:17,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 15:34:17,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:34:17,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 15:34:17,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 15:34:17,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 15:34:17,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 15:34:17,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 15:34:17,588 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 15:34:17,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 15:34:17,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 15:34:17,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 15:34:17,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 [2021-12-21 15:34:17,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 15:34:17,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 15:34:17,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 15:34:17,805 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 15:34:17,805 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 15:34:17,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-12-21 15:34:17,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb62fad4/fc71ddd2dec44d3eb29525a044233bd1/FLAG43d351120 [2021-12-21 15:34:18,584 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 15:34:18,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-12-21 15:34:18,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb62fad4/fc71ddd2dec44d3eb29525a044233bd1/FLAG43d351120 [2021-12-21 15:34:18,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb62fad4/fc71ddd2dec44d3eb29525a044233bd1 [2021-12-21 15:34:18,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 15:34:18,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 15:34:18,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 15:34:18,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 15:34:18,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 15:34:18,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:34:18" (1/1) ... [2021-12-21 15:34:18,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95c86e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:18, skipping insertion in model container [2021-12-21 15:34:18,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:34:18" (1/1) ... [2021-12-21 15:34:18,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 15:34:18,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 15:34:19,146 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_hash_table_move_harness.i[4493,4506] [2021-12-21 15:34:19,154 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_hash_table_move_harness.i[4553,4566] [2021-12-21 15:34:19,801 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,801 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,802 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,802 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,803 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,815 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,815 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,817 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,817 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,819 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,819 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,820 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:19,820 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,072 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-21 15:34:20,073 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-21 15:34:20,075 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-21 15:34:20,076 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-21 15:34:20,077 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-21 15:34:20,078 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-21 15:34:20,078 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-21 15:34:20,091 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-21 15:34:20,112 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-21 15:34:20,113 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-21 15:34:20,266 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-21 15:34:20,560 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,561 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,588 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,590 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,597 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,598 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,617 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,618 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,619 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,620 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,620 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,621 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,621 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:34:20,704 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 15:34:20,742 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_hash_table_move_harness.i[4493,4506] [2021-12-21 15:34:20,742 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_hash_table_move_harness.i[4553,4566] [2021-12-21 15:34:20,779 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,780 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,780 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,780 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,781 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,786 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,788 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,788 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,789 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,791 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,792 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,792 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,792 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,814 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-21 15:34:20,815 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-21 15:34:20,815 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-21 15:34:20,816 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-21 15:34:20,816 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-21 15:34:20,817 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-21 15:34:20,817 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-21 15:34:20,817 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-21 15:34:20,818 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-21 15:34:20,818 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-21 15:34:20,835 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-21 15:34:20,957 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,958 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,963 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,964 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,966 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,967 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,978 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,979 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,979 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,980 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,980 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,981 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,981 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-21 15:34:20,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:34:21,234 INFO L208 MainTranslator]: Completed translation [2021-12-21 15:34:21,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21 WrapperNode [2021-12-21 15:34:21,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 15:34:21,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 15:34:21,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 15:34:21,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 15:34:21,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (1/1) ... [2021-12-21 15:34:21,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (1/1) ... [2021-12-21 15:34:21,421 INFO L137 Inliner]: procedures = 774, calls = 2432, calls flagged for inlining = 69, calls inlined = 12, statements flattened = 622 [2021-12-21 15:34:21,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 15:34:21,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 15:34:21,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 15:34:21,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 15:34:21,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (1/1) ... [2021-12-21 15:34:21,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (1/1) ... [2021-12-21 15:34:21,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (1/1) ... [2021-12-21 15:34:21,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (1/1) ... [2021-12-21 15:34:21,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (1/1) ... [2021-12-21 15:34:21,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (1/1) ... [2021-12-21 15:34:21,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (1/1) ... [2021-12-21 15:34:21,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 15:34:21,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 15:34:21,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 15:34:21,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 15:34:21,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (1/1) ... [2021-12-21 15:34:21,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:34:21,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:21,545 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) [2021-12-21 15:34:21,566 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 [2021-12-21 15:34:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-21 15:34:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 15:34:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-21 15:34:21,581 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-21 15:34:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-21 15:34:21,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-21 15:34:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-12-21 15:34:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-12-21 15:34:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 15:34:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 15:34:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 15:34:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 15:34:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 15:34:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-21 15:34:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-21 15:34:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-21 15:34:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-21 15:34:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 15:34:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 15:34:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 15:34:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-12-21 15:34:21,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-12-21 15:34:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 15:34:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-21 15:34:21,585 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-21 15:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 15:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-12-21 15:34:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-12-21 15:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 15:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-12-21 15:34:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-12-21 15:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 15:34:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 15:34:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-12-21 15:34:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-12-21 15:34:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 15:34:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-21 15:34:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-21 15:34:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-12-21 15:34:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-12-21 15:34:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 15:34:21,851 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 15:34:21,853 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 15:34:22,558 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 15:34:22,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 15:34:22,568 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 15:34:22,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:34:22 BoogieIcfgContainer [2021-12-21 15:34:22,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 15:34:22,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 15:34:22,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 15:34:22,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 15:34:22,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:34:18" (1/3) ... [2021-12-21 15:34:22,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4216b289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:34:22, skipping insertion in model container [2021-12-21 15:34:22,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:34:21" (2/3) ... [2021-12-21 15:34:22,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4216b289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:34:22, skipping insertion in model container [2021-12-21 15:34:22,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:34:22" (3/3) ... [2021-12-21 15:34:22,580 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness.i [2021-12-21 15:34:22,586 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 15:34:22,586 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 15:34:22,628 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:34:22,633 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 15:34:22,633 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 15:34:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 79 states have (on average 1.1645569620253164) internal successors, (92), 79 states have internal predecessors, (92), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-12-21 15:34:22,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-21 15:34:22,665 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:22,666 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:22,667 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:22,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:22,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1851529921, now seen corresponding path program 1 times [2021-12-21 15:34:22,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:22,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6230452] [2021-12-21 15:34:22,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:22,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:23,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:23,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:34:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:23,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 15:34:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:23,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 15:34:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:23,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 15:34:23,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:23,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6230452] [2021-12-21 15:34:23,278 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-12-21 15:34:23,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685981830] [2021-12-21 15:34:23,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:23,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:23,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:23,280 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) [2021-12-21 15:34:23,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 15:34:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:23,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-21 15:34:23,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-12-21 15:34:24,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:24,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685981830] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:24,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:34:24,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 15:34:24,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322282034] [2021-12-21 15:34:24,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:24,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 15:34:24,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:24,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 15:34:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:34:24,158 INFO L87 Difference]: Start difference. First operand has 126 states, 79 states have (on average 1.1645569620253164) internal successors, (92), 79 states have internal predecessors, (92), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-21 15:34:24,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:24,187 INFO L93 Difference]: Finished difference Result 244 states and 318 transitions. [2021-12-21 15:34:24,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 15:34:24,192 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 139 [2021-12-21 15:34:24,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:24,204 INFO L225 Difference]: With dead ends: 244 [2021-12-21 15:34:24,204 INFO L226 Difference]: Without dead ends: 120 [2021-12-21 15:34:24,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:34:24,222 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:24,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 15:34:24,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-12-21 15:34:24,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-12-21 15:34:24,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-12-21 15:34:24,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2021-12-21 15:34:24,289 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 139 [2021-12-21 15:34:24,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:24,290 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2021-12-21 15:34:24,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-21 15:34:24,291 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2021-12-21 15:34:24,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-21 15:34:24,312 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:24,313 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:24,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 15:34:24,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-21 15:34:24,536 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:24,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:24,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1946732163, now seen corresponding path program 1 times [2021-12-21 15:34:24,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:24,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607214480] [2021-12-21 15:34:24,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:24,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:24,612 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 15:34:24,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931663424] [2021-12-21 15:34:24,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:24,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:24,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:24,614 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) [2021-12-21 15:34:24,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 15:34:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:25,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 2455 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 15:34:25,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:25,378 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-12-21 15:34:25,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:25,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:25,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607214480] [2021-12-21 15:34:25,379 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 15:34:25,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931663424] [2021-12-21 15:34:25,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931663424] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:25,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:34:25,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 15:34:25,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030342775] [2021-12-21 15:34:25,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:25,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 15:34:25,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:25,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 15:34:25,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 15:34:25,383 INFO L87 Difference]: Start difference. First operand 120 states and 146 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-21 15:34:25,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:25,425 INFO L93 Difference]: Finished difference Result 233 states and 284 transitions. [2021-12-21 15:34:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 15:34:25,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2021-12-21 15:34:25,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:25,427 INFO L225 Difference]: With dead ends: 233 [2021-12-21 15:34:25,427 INFO L226 Difference]: Without dead ends: 125 [2021-12-21 15:34:25,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 15:34:25,429 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 2 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:25,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 568 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 15:34:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-12-21 15:34:25,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-12-21 15:34:25,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 77 states have (on average 1.12987012987013) internal successors, (87), 78 states have internal predecessors, (87), 32 states have call successors, (32), 14 states have call predecessors, (32), 15 states have return successors, (32), 32 states have call predecessors, (32), 31 states have call successors, (32) [2021-12-21 15:34:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 151 transitions. [2021-12-21 15:34:25,442 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 151 transitions. Word has length 145 [2021-12-21 15:34:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:25,443 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 151 transitions. [2021-12-21 15:34:25,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-21 15:34:25,444 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 151 transitions. [2021-12-21 15:34:25,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-21 15:34:25,446 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:25,446 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:25,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 15:34:25,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-21 15:34:25,668 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:25,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:25,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1359183933, now seen corresponding path program 1 times [2021-12-21 15:34:25,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:25,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216997949] [2021-12-21 15:34:25,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:25,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:25,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:25,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:34:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:25,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 15:34:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 15:34:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 15:34:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 15:34:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 15:34:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:34:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-21 15:34:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 15:34:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-21 15:34:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-21 15:34:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 15:34:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 15:34:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 15:34:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 15:34:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 15:34:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 15:34:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,524 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-21 15:34:26,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:26,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216997949] [2021-12-21 15:34:26,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216997949] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:34:26,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573494119] [2021-12-21 15:34:26,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:26,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:26,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:26,527 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) [2021-12-21 15:34:26,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 15:34:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:26,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 36 conjunts are in the unsatisfiable core [2021-12-21 15:34:27,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:27,254 INFO L387 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 11 treesize of output 7 [2021-12-21 15:34:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-12-21 15:34:27,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:27,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573494119] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:27,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:34:27,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 23 [2021-12-21 15:34:27,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923876902] [2021-12-21 15:34:27,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:27,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-21 15:34:27,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:27,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-21 15:34:27,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2021-12-21 15:34:27,667 INFO L87 Difference]: Start difference. First operand 125 states and 151 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 9 states have internal predecessors, (76), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 15:34:27,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:27,730 INFO L93 Difference]: Finished difference Result 238 states and 286 transitions. [2021-12-21 15:34:27,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 15:34:27,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 9 states have internal predecessors, (76), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 157 [2021-12-21 15:34:27,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:27,737 INFO L225 Difference]: With dead ends: 238 [2021-12-21 15:34:27,739 INFO L226 Difference]: Without dead ends: 134 [2021-12-21 15:34:27,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2021-12-21 15:34:27,746 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 17 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:27,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 688 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 46 Unchecked, 0.0s Time] [2021-12-21 15:34:27,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-12-21 15:34:27,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-12-21 15:34:27,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 85 states have (on average 1.1411764705882352) internal successors, (97), 86 states have internal predecessors, (97), 32 states have call successors, (32), 15 states have call predecessors, (32), 16 states have return successors, (33), 32 states have call predecessors, (33), 31 states have call successors, (33) [2021-12-21 15:34:27,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 162 transitions. [2021-12-21 15:34:27,764 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 162 transitions. Word has length 157 [2021-12-21 15:34:27,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:27,764 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 162 transitions. [2021-12-21 15:34:27,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 9 states have internal predecessors, (76), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 15:34:27,765 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 162 transitions. [2021-12-21 15:34:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-21 15:34:27,767 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:27,767 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:27,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 15:34:27,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:27,988 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:27,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:27,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1330683643, now seen corresponding path program 1 times [2021-12-21 15:34:27,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:27,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952658306] [2021-12-21 15:34:27,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:27,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:34:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 15:34:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 15:34:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 15:34:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 15:34:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 15:34:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:34:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-21 15:34:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 15:34:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-21 15:34:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-21 15:34:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 15:34:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 15:34:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 15:34:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 15:34:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 15:34:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 15:34:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:28,569 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-21 15:34:28,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:28,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952658306] [2021-12-21 15:34:28,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952658306] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:34:28,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950876189] [2021-12-21 15:34:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:28,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:28,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:28,572 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) [2021-12-21 15:34:28,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 15:34:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 2458 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 15:34:29,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-12-21 15:34:29,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:29,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950876189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:29,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:34:29,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2021-12-21 15:34:29,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225154116] [2021-12-21 15:34:29,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:29,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 15:34:29,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 15:34:29,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-12-21 15:34:29,335 INFO L87 Difference]: Start difference. First operand 134 states and 162 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-21 15:34:29,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:29,499 INFO L93 Difference]: Finished difference Result 242 states and 294 transitions. [2021-12-21 15:34:29,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 15:34:29,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 157 [2021-12-21 15:34:29,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:29,502 INFO L225 Difference]: With dead ends: 242 [2021-12-21 15:34:29,502 INFO L226 Difference]: Without dead ends: 136 [2021-12-21 15:34:29,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-12-21 15:34:29,503 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 147 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:29,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 436 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 15:34:29,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-12-21 15:34:29,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2021-12-21 15:34:29,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 86 states have (on average 1.127906976744186) internal successors, (97), 87 states have internal predecessors, (97), 33 states have call successors, (33), 15 states have call predecessors, (33), 16 states have return successors, (36), 33 states have call predecessors, (36), 32 states have call successors, (36) [2021-12-21 15:34:29,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 166 transitions. [2021-12-21 15:34:29,516 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 166 transitions. Word has length 157 [2021-12-21 15:34:29,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:29,516 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 166 transitions. [2021-12-21 15:34:29,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-21 15:34:29,517 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 166 transitions. [2021-12-21 15:34:29,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-21 15:34:29,519 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:29,519 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:29,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-21 15:34:29,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:29,748 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:29,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:29,748 INFO L85 PathProgramCache]: Analyzing trace with hash -539435900, now seen corresponding path program 1 times [2021-12-21 15:34:29,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:29,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891493427] [2021-12-21 15:34:29,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:29,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:34:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 15:34:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 15:34:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 15:34:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 15:34:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 15:34:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:29,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:34:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 15:34:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 15:34:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 15:34:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 15:34:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 15:34:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 15:34:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 15:34:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:34:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 15:34:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 15:34:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 15:34:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,240 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-12-21 15:34:30,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:30,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891493427] [2021-12-21 15:34:30,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891493427] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:34:30,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595286037] [2021-12-21 15:34:30,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:30,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:30,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:30,243 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) [2021-12-21 15:34:30,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-21 15:34:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:30,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 2487 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-21 15:34:30,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:31,728 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true [2021-12-21 15:34:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-21 15:34:37,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:37,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595286037] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:37,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:34:37,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2021-12-21 15:34:37,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502955400] [2021-12-21 15:34:37,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:37,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:34:37,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:37,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:34:37,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=202, Unknown=3, NotChecked=28, Total=272 [2021-12-21 15:34:37,849 INFO L87 Difference]: Start difference. First operand 136 states and 166 transitions. Second operand has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-21 15:34:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:37,999 INFO L93 Difference]: Finished difference Result 249 states and 307 transitions. [2021-12-21 15:34:38,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:34:38,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 163 [2021-12-21 15:34:38,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:38,002 INFO L225 Difference]: With dead ends: 249 [2021-12-21 15:34:38,002 INFO L226 Difference]: Without dead ends: 139 [2021-12-21 15:34:38,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=54, Invalid=253, Unknown=3, NotChecked=32, Total=342 [2021-12-21 15:34:38,003 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 5 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 210 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:38,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 775 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 210 Unchecked, 0.1s Time] [2021-12-21 15:34:38,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-12-21 15:34:38,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 138. [2021-12-21 15:34:38,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 88 states have (on average 1.125) internal successors, (99), 88 states have internal predecessors, (99), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (36), 33 states have call predecessors, (36), 32 states have call successors, (36) [2021-12-21 15:34:38,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 168 transitions. [2021-12-21 15:34:38,014 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 168 transitions. Word has length 163 [2021-12-21 15:34:38,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:38,015 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 168 transitions. [2021-12-21 15:34:38,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-21 15:34:38,015 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 168 transitions. [2021-12-21 15:34:38,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-21 15:34:38,017 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:38,017 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:38,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-21 15:34:38,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:38,218 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:38,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:38,219 INFO L85 PathProgramCache]: Analyzing trace with hash -971010897, now seen corresponding path program 1 times [2021-12-21 15:34:38,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:38,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010821242] [2021-12-21 15:34:38,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:38,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:34:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 15:34:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 15:34:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 15:34:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 15:34:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 15:34:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:34:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 15:34:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 15:34:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-21 15:34:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 15:34:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 15:34:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 15:34:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:34:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 15:34:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 15:34:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 15:34:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-21 15:34:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-21 15:34:38,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:38,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010821242] [2021-12-21 15:34:38,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010821242] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:34:38,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725291153] [2021-12-21 15:34:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:38,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:38,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:38,916 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) [2021-12-21 15:34:38,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-21 15:34:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:39,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 2517 conjuncts, 60 conjunts are in the unsatisfiable core [2021-12-21 15:34:39,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:39,672 INFO L387 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 11 treesize of output 7 [2021-12-21 15:34:40,534 INFO L353 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-12-21 15:34:40,535 INFO L387 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 24 treesize of output 19 [2021-12-21 15:34:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-21 15:34:40,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:40,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725291153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:40,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:34:40,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 27 [2021-12-21 15:34:40,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427846866] [2021-12-21 15:34:40,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:40,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-21 15:34:40,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:40,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-21 15:34:40,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2021-12-21 15:34:40,878 INFO L87 Difference]: Start difference. First operand 138 states and 168 transitions. Second operand has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 8 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (27), 9 states have call predecessors, (27), 7 states have call successors, (27) [2021-12-21 15:34:41,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:41,222 INFO L93 Difference]: Finished difference Result 247 states and 306 transitions. [2021-12-21 15:34:41,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-21 15:34:41,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 8 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (27), 9 states have call predecessors, (27), 7 states have call successors, (27) Word has length 168 [2021-12-21 15:34:41,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:41,227 INFO L225 Difference]: With dead ends: 247 [2021-12-21 15:34:41,227 INFO L226 Difference]: Without dead ends: 207 [2021-12-21 15:34:41,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 195 SyntacticMatches, 16 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=880, Unknown=0, NotChecked=0, Total=992 [2021-12-21 15:34:41,228 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 74 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 509 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:41,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 766 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 165 Invalid, 0 Unknown, 509 Unchecked, 0.2s Time] [2021-12-21 15:34:41,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-12-21 15:34:41,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 195. [2021-12-21 15:34:41,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 125 states have (on average 1.144) internal successors, (143), 129 states have internal predecessors, (143), 45 states have call successors, (45), 21 states have call predecessors, (45), 24 states have return successors, (54), 44 states have call predecessors, (54), 44 states have call successors, (54) [2021-12-21 15:34:41,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 242 transitions. [2021-12-21 15:34:41,252 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 242 transitions. Word has length 168 [2021-12-21 15:34:41,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:41,254 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 242 transitions. [2021-12-21 15:34:41,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 8 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (27), 9 states have call predecessors, (27), 7 states have call successors, (27) [2021-12-21 15:34:41,254 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 242 transitions. [2021-12-21 15:34:41,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-21 15:34:41,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:41,257 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:41,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-21 15:34:41,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:41,470 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:41,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:41,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1364037907, now seen corresponding path program 1 times [2021-12-21 15:34:41,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:41,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427275652] [2021-12-21 15:34:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:41,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:34:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 15:34:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 15:34:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 15:34:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 15:34:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 15:34:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:34:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 15:34:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 15:34:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-21 15:34:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 15:34:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 15:34:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 15:34:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:34:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 15:34:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 15:34:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 15:34:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-21 15:34:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:41,985 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-21 15:34:41,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:41,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427275652] [2021-12-21 15:34:41,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427275652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:41,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:34:41,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-21 15:34:41,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881639552] [2021-12-21 15:34:41,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:41,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-21 15:34:41,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:41,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-21 15:34:41,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-21 15:34:41,988 INFO L87 Difference]: Start difference. First operand 195 states and 242 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-21 15:34:42,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:42,525 INFO L93 Difference]: Finished difference Result 239 states and 296 transitions. [2021-12-21 15:34:42,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-21 15:34:42,526 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 168 [2021-12-21 15:34:42,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:42,528 INFO L225 Difference]: With dead ends: 239 [2021-12-21 15:34:42,528 INFO L226 Difference]: Without dead ends: 203 [2021-12-21 15:34:42,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-12-21 15:34:42,529 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 158 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:42,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 603 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 15:34:42,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-12-21 15:34:42,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 196. [2021-12-21 15:34:42,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 126 states have (on average 1.1428571428571428) internal successors, (144), 129 states have internal predecessors, (144), 45 states have call successors, (45), 21 states have call predecessors, (45), 24 states have return successors, (53), 45 states have call predecessors, (53), 44 states have call successors, (53) [2021-12-21 15:34:42,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 242 transitions. [2021-12-21 15:34:42,543 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 242 transitions. Word has length 168 [2021-12-21 15:34:42,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:42,544 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 242 transitions. [2021-12-21 15:34:42,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-21 15:34:42,544 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 242 transitions. [2021-12-21 15:34:42,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-21 15:34:42,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:42,547 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:42,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 15:34:42,547 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:42,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:42,547 INFO L85 PathProgramCache]: Analyzing trace with hash 720508465, now seen corresponding path program 1 times [2021-12-21 15:34:42,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:42,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238971154] [2021-12-21 15:34:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:42,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:34:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 15:34:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 15:34:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 15:34:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 15:34:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 15:34:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:34:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 15:34:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 15:34:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-21 15:34:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 15:34:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 15:34:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 15:34:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:34:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 15:34:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 15:34:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:43,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 15:34:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:43,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 15:34:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:43,111 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-12-21 15:34:43,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:43,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238971154] [2021-12-21 15:34:43,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238971154] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:34:43,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886353479] [2021-12-21 15:34:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:43,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:43,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:43,116 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:34:43,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-21 15:34:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:43,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 2536 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-21 15:34:43,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:43,825 INFO L387 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 11 treesize of output 7 [2021-12-21 15:34:44,629 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-12-21 15:34:44,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:44,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886353479] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:44,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:34:44,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 26 [2021-12-21 15:34:44,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860004692] [2021-12-21 15:34:44,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:44,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-21 15:34:44,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:44,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-21 15:34:44,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2021-12-21 15:34:44,634 INFO L87 Difference]: Start difference. First operand 196 states and 242 transitions. Second operand has 13 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 7 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (27), 8 states have call predecessors, (27), 7 states have call successors, (27) [2021-12-21 15:34:44,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:44,919 INFO L93 Difference]: Finished difference Result 321 states and 381 transitions. [2021-12-21 15:34:44,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-21 15:34:44,920 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 7 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (27), 8 states have call predecessors, (27), 7 states have call successors, (27) Word has length 169 [2021-12-21 15:34:44,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:44,922 INFO L225 Difference]: With dead ends: 321 [2021-12-21 15:34:44,922 INFO L226 Difference]: Without dead ends: 222 [2021-12-21 15:34:44,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 201 SyntacticMatches, 12 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=821, Unknown=0, NotChecked=0, Total=930 [2021-12-21 15:34:44,923 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 74 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 328 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:44,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 641 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 159 Invalid, 0 Unknown, 328 Unchecked, 0.2s Time] [2021-12-21 15:34:44,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-12-21 15:34:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 216. [2021-12-21 15:34:44,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 140 states have (on average 1.1214285714285714) internal successors, (157), 143 states have internal predecessors, (157), 47 states have call successors, (47), 25 states have call predecessors, (47), 28 states have return successors, (55), 47 states have call predecessors, (55), 46 states have call successors, (55) [2021-12-21 15:34:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 259 transitions. [2021-12-21 15:34:44,938 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 259 transitions. Word has length 169 [2021-12-21 15:34:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:44,938 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 259 transitions. [2021-12-21 15:34:44,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 7 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (27), 8 states have call predecessors, (27), 7 states have call successors, (27) [2021-12-21 15:34:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 259 transitions. [2021-12-21 15:34:44,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-21 15:34:44,941 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:44,941 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:44,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-21 15:34:45,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:45,156 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:45,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:45,156 INFO L85 PathProgramCache]: Analyzing trace with hash 995268079, now seen corresponding path program 1 times [2021-12-21 15:34:45,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:45,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243261949] [2021-12-21 15:34:45,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:45,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:34:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 15:34:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 15:34:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 15:34:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 15:34:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 15:34:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:34:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 15:34:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 15:34:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-21 15:34:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 15:34:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 15:34:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 15:34:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:34:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 15:34:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 15:34:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 15:34:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 15:34:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:45,678 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-12-21 15:34:45,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:45,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243261949] [2021-12-21 15:34:45,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243261949] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:34:45,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072186952] [2021-12-21 15:34:45,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:45,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:45,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:45,719 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:34:45,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-21 15:34:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:46,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 2531 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 15:34:46,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-12-21 15:34:46,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:46,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072186952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:46,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:34:46,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2021-12-21 15:34:46,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891051742] [2021-12-21 15:34:46,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:46,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:34:46,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:46,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:34:46,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-12-21 15:34:46,505 INFO L87 Difference]: Start difference. First operand 216 states and 259 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-21 15:34:46,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:46,660 INFO L93 Difference]: Finished difference Result 301 states and 354 transitions. [2021-12-21 15:34:46,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 15:34:46,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 169 [2021-12-21 15:34:46,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:46,662 INFO L225 Difference]: With dead ends: 301 [2021-12-21 15:34:46,662 INFO L226 Difference]: Without dead ends: 198 [2021-12-21 15:34:46,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-12-21 15:34:46,663 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 148 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:46,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 442 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 15:34:46,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-12-21 15:34:46,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 196. [2021-12-21 15:34:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 124 states have (on average 1.0887096774193548) internal successors, (135), 128 states have internal predecessors, (135), 45 states have call successors, (45), 22 states have call predecessors, (45), 26 states have return successors, (51), 45 states have call predecessors, (51), 44 states have call successors, (51) [2021-12-21 15:34:46,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 231 transitions. [2021-12-21 15:34:46,698 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 231 transitions. Word has length 169 [2021-12-21 15:34:46,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:46,702 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 231 transitions. [2021-12-21 15:34:46,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-21 15:34:46,702 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 231 transitions. [2021-12-21 15:34:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-21 15:34:46,704 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:46,705 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:46,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-21 15:34:46,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-21 15:34:46,921 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:46,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:46,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2005475441, now seen corresponding path program 2 times [2021-12-21 15:34:46,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:46,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253177973] [2021-12-21 15:34:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:46,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:34:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 15:34:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 15:34:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 15:34:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 15:34:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 15:34:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:34:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 15:34:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 15:34:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-21 15:34:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:34:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:34:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 15:34:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 15:34:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 15:34:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:34:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 15:34:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 15:34:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:34:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 15:34:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 15:34:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 15:34:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:47,747 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-12-21 15:34:47,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:47,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253177973] [2021-12-21 15:34:47,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253177973] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:34:47,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497869657] [2021-12-21 15:34:47,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 15:34:47,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:47,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:47,749 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:34:47,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-21 15:34:48,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 15:34:48,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 15:34:48,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 2590 conjuncts, 84 conjunts are in the unsatisfiable core [2021-12-21 15:34:48,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:48,871 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-12-21 15:34:48,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:48,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497869657] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:48,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:34:48,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 25 [2021-12-21 15:34:48,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373011300] [2021-12-21 15:34:48,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:48,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:34:48,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:48,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:34:48,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-12-21 15:34:48,874 INFO L87 Difference]: Start difference. First operand 196 states and 231 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-21 15:34:49,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:49,005 INFO L93 Difference]: Finished difference Result 384 states and 451 transitions. [2021-12-21 15:34:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 15:34:49,006 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 180 [2021-12-21 15:34:49,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:49,007 INFO L225 Difference]: With dead ends: 384 [2021-12-21 15:34:49,007 INFO L226 Difference]: Without dead ends: 200 [2021-12-21 15:34:49,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-12-21 15:34:49,009 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 22 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:49,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 690 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 15:34:49,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-12-21 15:34:49,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-12-21 15:34:49,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 126 states have (on average 1.0873015873015872) internal successors, (137), 132 states have internal predecessors, (137), 45 states have call successors, (45), 22 states have call predecessors, (45), 28 states have return successors, (53), 45 states have call predecessors, (53), 44 states have call successors, (53) [2021-12-21 15:34:49,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 235 transitions. [2021-12-21 15:34:49,023 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 235 transitions. Word has length 180 [2021-12-21 15:34:49,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:49,023 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 235 transitions. [2021-12-21 15:34:49,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-21 15:34:49,023 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 235 transitions. [2021-12-21 15:34:49,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-21 15:34:49,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:49,025 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:49,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-21 15:34:49,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-21 15:34:49,239 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:49,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:49,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1874383290, now seen corresponding path program 1 times [2021-12-21 15:34:49,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:49,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713940595] [2021-12-21 15:34:49,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:49,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:49,292 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 15:34:49,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110329901] [2021-12-21 15:34:49,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:49,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:49,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:49,294 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:34:49,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-21 15:34:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:49,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 2695 conjuncts, 80 conjunts are in the unsatisfiable core [2021-12-21 15:34:49,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:50,015 INFO L387 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 11 treesize of output 7 [2021-12-21 15:34:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-21 15:34:50,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:50,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:50,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713940595] [2021-12-21 15:34:50,409 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 15:34:50,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110329901] [2021-12-21 15:34:50,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110329901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:50,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:34:50,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-21 15:34:50,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964900491] [2021-12-21 15:34:50,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:50,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-21 15:34:50,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:50,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-21 15:34:50,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-21 15:34:50,411 INFO L87 Difference]: Start difference. First operand 200 states and 235 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 7 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 7 states have call successors, (30) [2021-12-21 15:34:50,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:50,753 INFO L93 Difference]: Finished difference Result 339 states and 388 transitions. [2021-12-21 15:34:50,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-21 15:34:50,754 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 7 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 7 states have call successors, (30) Word has length 186 [2021-12-21 15:34:50,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:50,755 INFO L225 Difference]: With dead ends: 339 [2021-12-21 15:34:50,756 INFO L226 Difference]: Without dead ends: 220 [2021-12-21 15:34:50,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 172 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-12-21 15:34:50,757 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 53 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 142 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:50,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 559 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 280 Invalid, 0 Unknown, 142 Unchecked, 0.3s Time] [2021-12-21 15:34:50,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-12-21 15:34:50,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-12-21 15:34:50,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 141 states have (on average 1.0638297872340425) internal successors, (150), 146 states have internal predecessors, (150), 47 states have call successors, (47), 26 states have call predecessors, (47), 31 states have return successors, (54), 47 states have call predecessors, (54), 46 states have call successors, (54) [2021-12-21 15:34:50,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 251 transitions. [2021-12-21 15:34:50,779 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 251 transitions. Word has length 186 [2021-12-21 15:34:50,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:50,780 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 251 transitions. [2021-12-21 15:34:50,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 7 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 7 states have call successors, (30) [2021-12-21 15:34:50,780 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 251 transitions. [2021-12-21 15:34:50,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-21 15:34:50,782 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:50,782 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:50,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-21 15:34:51,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-21 15:34:51,007 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:51,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:51,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1250367336, now seen corresponding path program 1 times [2021-12-21 15:34:51,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:51,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839215061] [2021-12-21 15:34:51,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:51,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:51,062 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 15:34:51,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [190130683] [2021-12-21 15:34:51,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:51,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:51,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:51,064 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:34:51,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-21 15:34:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:51,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 15:34:51,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-12-21 15:34:51,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:34:51,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:34:51,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839215061] [2021-12-21 15:34:51,778 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 15:34:51,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190130683] [2021-12-21 15:34:51,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190130683] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:34:51,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:34:51,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 15:34:51,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582866078] [2021-12-21 15:34:51,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:34:51,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 15:34:51,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:34:51,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 15:34:51,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 15:34:51,780 INFO L87 Difference]: Start difference. First operand 220 states and 251 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-21 15:34:51,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:34:51,809 INFO L93 Difference]: Finished difference Result 285 states and 329 transitions. [2021-12-21 15:34:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 15:34:51,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 180 [2021-12-21 15:34:51,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:34:51,811 INFO L225 Difference]: With dead ends: 285 [2021-12-21 15:34:51,811 INFO L226 Difference]: Without dead ends: 222 [2021-12-21 15:34:51,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 15:34:51,812 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 2 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 15:34:51,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 556 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 15:34:51,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-12-21 15:34:51,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2021-12-21 15:34:51,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 143 states have (on average 1.062937062937063) internal successors, (152), 147 states have internal predecessors, (152), 47 states have call successors, (47), 26 states have call predecessors, (47), 31 states have return successors, (54), 48 states have call predecessors, (54), 46 states have call successors, (54) [2021-12-21 15:34:51,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 253 transitions. [2021-12-21 15:34:51,826 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 253 transitions. Word has length 180 [2021-12-21 15:34:51,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:34:51,827 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 253 transitions. [2021-12-21 15:34:51,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-21 15:34:51,827 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 253 transitions. [2021-12-21 15:34:51,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-21 15:34:51,828 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:34:51,829 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:34:51,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-21 15:34:52,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-21 15:34:52,056 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:34:52,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:34:52,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1877903641, now seen corresponding path program 1 times [2021-12-21 15:34:52,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:34:52,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331694440] [2021-12-21 15:34:52,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:52,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:34:52,103 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 15:34:52,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1497071723] [2021-12-21 15:34:52,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:34:52,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:34:52,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:34:52,105 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:34:52,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-21 15:34:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:34:52,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 2727 conjuncts, 147 conjunts are in the unsatisfiable core [2021-12-21 15:34:52,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:34:52,685 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-21 15:34:52,686 INFO L387 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-12-21 15:34:52,945 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-21 15:34:52,945 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-21 15:34:52,969 INFO L387 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 5 treesize of output 3 [2021-12-21 15:34:53,513 INFO L353 Elim1Store]: treesize reduction 112, result has 28.7 percent of original size [2021-12-21 15:34:53,514 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 142 treesize of output 166 [2021-12-21 15:34:53,697 INFO L387 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 5 treesize of output 3 [2021-12-21 15:34:53,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 15:34:53,776 INFO L387 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 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-21 15:34:53,831 INFO L387 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 11 treesize of output 7 [2021-12-21 15:34:53,843 INFO L387 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 12 treesize of output 14 [2021-12-21 15:34:54,280 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-21 15:34:54,280 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2021-12-21 15:34:54,490 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1842 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1842) |c_#memory_$Pointer$.base|)) is different from true [2021-12-21 15:34:54,629 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1843 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_1843))) is different from true [2021-12-21 15:34:54,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 15:34:54,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 15:34:54,736 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2021-12-21 15:34:54,782 INFO L353 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-12-21 15:34:54,782 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25