./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:13:39,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:13:39,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:13:39,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:13:39,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:13:39,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:13:39,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:13:39,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:13:39,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:13:39,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:13:39,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:13:39,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:13:39,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:13:39,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:13:39,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:13:39,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:13:39,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:13:39,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:13:39,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:13:39,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:13:39,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:13:39,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:13:39,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:13:39,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:13:39,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:13:39,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:13:39,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:13:39,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:13:39,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:13:39,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:13:39,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:13:39,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:13:39,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:13:39,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:13:39,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:13:39,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:13:39,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:13:39,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:13:39,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:13:39,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:13:39,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:13:39,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:13:39,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:13:39,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:13:39,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:13:39,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:13:39,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:13:39,635 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:13:39,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:13:39,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:13:39,636 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:13:39,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:13:39,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:13:39,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:13:39,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:13:39,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:13:39,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:13:39,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:13:39,638 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:13:39,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:13:39,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:13:39,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:13:39,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:13:39,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:13:39,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:13:39,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:13:39,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:13:39,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:13:39,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:13:39,643 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:13:39,643 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:13:39,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:13:39,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2021-12-28 03:13:39,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:13:39,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:13:39,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:13:39,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:13:39,910 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:13:39,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-12-28 03:13:39,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9eb6108/4ccf3d4d0c914beb9030f3b5de5fd084/FLAG71079c6dc [2021-12-28 03:13:40,546 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:13:40,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-12-28 03:13:40,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9eb6108/4ccf3d4d0c914beb9030f3b5de5fd084/FLAG71079c6dc [2021-12-28 03:13:40,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9eb6108/4ccf3d4d0c914beb9030f3b5de5fd084 [2021-12-28 03:13:40,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:13:40,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:13:40,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:13:40,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:13:40,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:13:40,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:13:40" (1/1) ... [2021-12-28 03:13:40,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92910e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:40, skipping insertion in model container [2021-12-28 03:13:40,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:13:40" (1/1) ... [2021-12-28 03:13:40,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:13:41,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:13:41,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2021-12-28 03:13:41,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2021-12-28 03:13:41,679 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-28 03:13:41,724 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,725 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,725 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,726 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,726 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,738 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,739 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,740 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,741 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,743 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,743 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,743 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,744 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,898 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-28 03:13:41,899 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-28 03:13:41,900 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-28 03:13:41,900 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-28 03:13:41,901 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-28 03:13:41,902 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-28 03:13:41,902 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-28 03:13:41,903 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-28 03:13:41,903 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-28 03:13:41,903 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-28 03:13:41,965 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,966 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,968 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:41,971 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:13:42,023 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:13:42,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2021-12-28 03:13:42,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2021-12-28 03:13:42,068 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-28 03:13:42,077 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,077 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,078 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,078 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,078 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,082 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,083 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,083 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,084 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,084 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,085 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,085 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,085 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,104 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-28 03:13:42,105 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-28 03:13:42,105 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-28 03:13:42,106 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-28 03:13:42,107 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-28 03:13:42,107 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-28 03:13:42,107 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-28 03:13:42,108 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-28 03:13:42,108 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-28 03:13:42,108 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-28 03:13:42,147 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,147 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,148 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,151 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:13:42,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:13:42,298 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:13:42,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42 WrapperNode [2021-12-28 03:13:42,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:13:42,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:13:42,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:13:42,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:13:42,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (1/1) ... [2021-12-28 03:13:42,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (1/1) ... [2021-12-28 03:13:42,486 INFO L137 Inliner]: procedures = 691, calls = 1682, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 649 [2021-12-28 03:13:42,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:13:42,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:13:42,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:13:42,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:13:42,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (1/1) ... [2021-12-28 03:13:42,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (1/1) ... [2021-12-28 03:13:42,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (1/1) ... [2021-12-28 03:13:42,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (1/1) ... [2021-12-28 03:13:42,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (1/1) ... [2021-12-28 03:13:42,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (1/1) ... [2021-12-28 03:13:42,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (1/1) ... [2021-12-28 03:13:42,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:13:42,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:13:42,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:13:42,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:13:42,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (1/1) ... [2021-12-28 03:13:42,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:13:42,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:13:42,591 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) [2021-12-28 03:13:42,612 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 [2021-12-28 03:13:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:13:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-12-28 03:13:42,631 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-12-28 03:13:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-12-28 03:13:42,631 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-12-28 03:13:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-28 03:13:42,631 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-28 03:13:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:13:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-28 03:13:42,632 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-28 03:13:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-28 03:13:42,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-28 03:13:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:13:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:13:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:13:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-28 03:13:42,633 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-28 03:13:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:13:42,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:13:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-28 03:13:42,634 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-28 03:13:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-28 03:13:42,634 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-28 03:13:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-12-28 03:13:42,634 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-12-28 03:13:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:13:42,635 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:13:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-28 03:13:42,635 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-28 03:13:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:13:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:13:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:13:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2021-12-28 03:13:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2021-12-28 03:13:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-28 03:13:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-28 03:13:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-28 03:13:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-28 03:13:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:13:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-12-28 03:13:42,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-12-28 03:13:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:13:42,871 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:13:42,872 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:13:43,475 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:13:43,482 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:13:43,483 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 03:13:43,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:13:43 BoogieIcfgContainer [2021-12-28 03:13:43,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:13:43,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:13:43,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:13:43,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:13:43,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:13:40" (1/3) ... [2021-12-28 03:13:43,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb9872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:13:43, skipping insertion in model container [2021-12-28 03:13:43,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:13:42" (2/3) ... [2021-12-28 03:13:43,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb9872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:13:43, skipping insertion in model container [2021-12-28 03:13:43,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:13:43" (3/3) ... [2021-12-28 03:13:43,490 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2021-12-28 03:13:43,494 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:13:43,494 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:13:43,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:13:43,543 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 [2021-12-28 03:13:43,545 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:13:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2021-12-28 03:13:43,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-28 03:13:43,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:13:43,572 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:13:43,573 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:13:43,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:13:43,578 INFO L85 PathProgramCache]: Analyzing trace with hash 223694820, now seen corresponding path program 1 times [2021-12-28 03:13:43,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:13:43,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989560890] [2021-12-28 03:13:43,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:13:43,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:13:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:43,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:13:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:43,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:13:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:43,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:13:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:13:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 03:13:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-28 03:13:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 03:13:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 03:13:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 03:13:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 03:13:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 03:13:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-28 03:13:44,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:13:44,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989560890] [2021-12-28 03:13:44,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989560890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:13:44,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:13:44,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:13:44,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882523089] [2021-12-28 03:13:44,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:13:44,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:13:44,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:13:44,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:13:44,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:13:44,151 INFO L87 Difference]: Start difference. First operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-28 03:13:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:13:44,640 INFO L93 Difference]: Finished difference Result 380 states and 580 transitions. [2021-12-28 03:13:44,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:13:44,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2021-12-28 03:13:44,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:13:44,650 INFO L225 Difference]: With dead ends: 380 [2021-12-28 03:13:44,650 INFO L226 Difference]: Without dead ends: 202 [2021-12-28 03:13:44,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:13:44,656 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 50 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 03:13:44,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 325 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 03:13:44,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-12-28 03:13:44,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 175. [2021-12-28 03:13:44,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2021-12-28 03:13:44,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 233 transitions. [2021-12-28 03:13:44,697 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 233 transitions. Word has length 69 [2021-12-28 03:13:44,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:13:44,698 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 233 transitions. [2021-12-28 03:13:44,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-28 03:13:44,698 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 233 transitions. [2021-12-28 03:13:44,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-28 03:13:44,700 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:13:44,700 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:13:44,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:13:44,701 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:13:44,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:13:44,702 INFO L85 PathProgramCache]: Analyzing trace with hash -636522710, now seen corresponding path program 1 times [2021-12-28 03:13:44,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:13:44,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185116766] [2021-12-28 03:13:44,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:13:44,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:13:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:13:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:13:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:13:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:13:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 03:13:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-28 03:13:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 03:13:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 03:13:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 03:13:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 03:13:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 03:13:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 03:13:44,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:13:44,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185116766] [2021-12-28 03:13:44,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185116766] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:13:44,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343439525] [2021-12-28 03:13:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:13:44,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:13:44,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:13:44,949 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) [2021-12-28 03:13:44,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 03:13:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:45,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1999 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-28 03:13:45,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:13:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-28 03:13:45,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:13:45,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343439525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:13:45,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:13:45,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-12-28 03:13:45,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759180480] [2021-12-28 03:13:45,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:13:45,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:13:45,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:13:45,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:13:45,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-28 03:13:45,450 INFO L87 Difference]: Start difference. First operand 175 states and 233 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-28 03:13:45,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:13:45,660 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2021-12-28 03:13:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:13:45,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2021-12-28 03:13:45,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:13:45,663 INFO L225 Difference]: With dead ends: 315 [2021-12-28 03:13:45,663 INFO L226 Difference]: Without dead ends: 177 [2021-12-28 03:13:45,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-12-28 03:13:45,665 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 232 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 03:13:45,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 661 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 03:13:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-12-28 03:13:45,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-12-28 03:13:45,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 99 states have (on average 1.1414141414141414) internal successors, (113), 101 states have internal predecessors, (113), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2021-12-28 03:13:45,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2021-12-28 03:13:45,679 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 242 transitions. Word has length 69 [2021-12-28 03:13:45,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:13:45,681 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 242 transitions. [2021-12-28 03:13:45,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-28 03:13:45,681 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 242 transitions. [2021-12-28 03:13:45,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-28 03:13:45,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:13:45,685 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:13:45,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 03:13:45,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:13:45,904 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:13:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:13:45,904 INFO L85 PathProgramCache]: Analyzing trace with hash -164009474, now seen corresponding path program 1 times [2021-12-28 03:13:45,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:13:45,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007409678] [2021-12-28 03:13:45,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:13:45,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:13:45,968 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 03:13:45,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240407825] [2021-12-28 03:13:45,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:13:45,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:13:45,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:13:45,970 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) [2021-12-28 03:13:45,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 03:13:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:46,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 2140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 03:13:46,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:13:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-28 03:13:46,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:13:46,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:13:46,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007409678] [2021-12-28 03:13:46,435 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-28 03:13:46,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240407825] [2021-12-28 03:13:46,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240407825] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:13:46,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:13:46,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 03:13:46,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145811644] [2021-12-28 03:13:46,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:13:46,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 03:13:46,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:13:46,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 03:13:46,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 03:13:46,441 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-28 03:13:46,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:13:46,738 INFO L93 Difference]: Finished difference Result 326 states and 455 transitions. [2021-12-28 03:13:46,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 03:13:46,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2021-12-28 03:13:46,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:13:46,740 INFO L225 Difference]: With dead ends: 326 [2021-12-28 03:13:46,740 INFO L226 Difference]: Without dead ends: 189 [2021-12-28 03:13:46,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-28 03:13:46,742 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 250 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 03:13:46,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 998 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 03:13:46,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-12-28 03:13:46,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-12-28 03:13:46,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 107 states have internal predecessors, (120), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2021-12-28 03:13:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2021-12-28 03:13:46,755 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 259 transitions. Word has length 84 [2021-12-28 03:13:46,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:13:46,756 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 259 transitions. [2021-12-28 03:13:46,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-28 03:13:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2021-12-28 03:13:46,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-28 03:13:46,758 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:13:46,758 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:13:46,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 03:13:46,978 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,SelfDestructingSolverStorable2 [2021-12-28 03:13:46,978 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:13:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:13:46,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1494755288, now seen corresponding path program 1 times [2021-12-28 03:13:46,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:13:46,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091513900] [2021-12-28 03:13:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:13:46,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:13:47,025 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 03:13:47,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357535382] [2021-12-28 03:13:47,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:13:47,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:13:47,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:13:47,027 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) [2021-12-28 03:13:47,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 03:13:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:13:47,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 2422 conjuncts, 252 conjunts are in the unsatisfiable core [2021-12-28 03:13:47,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:13:47,449 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-28 03:13:47,591 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-28 03:13:53,170 INFO L353 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2021-12-28 03:13:53,171 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 41 treesize of output 53 [2021-12-28 03:13:53,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-28 03:13:53,179 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2021-12-28 03:13:55,808 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_200 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_200)) |c_#memory_int|)) is different from true [2021-12-28 03:13:56,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-28 03:13:56,891 INFO L353 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-28 03:13:56,891 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 68 [2021-12-28 03:13:57,062 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-28 03:13:57,062 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-28 03:14:17,488 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 03:14:17,489 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 156 treesize of output 88 [2021-12-28 03:14:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 26 proven. 59 refuted. 0 times theorem prover too weak. 6 trivial. 6 not checked. [2021-12-28 03:14:18,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:14:31,544 WARN L228 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 85 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-12-28 03:14:42,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:14:42,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091513900] [2021-12-28 03:14:42,231 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-28 03:14:42,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357535382] [2021-12-28 03:14:42,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357535382] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:14:42,232 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:14:42,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2021-12-28 03:14:42,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794950997] [2021-12-28 03:14:42,232 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-28 03:14:42,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-12-28 03:14:42,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:14:42,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-12-28 03:14:42,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=2676, Unknown=4, NotChecked=104, Total=2970 [2021-12-28 03:14:42,234 INFO L87 Difference]: Start difference. First operand 189 states and 259 transitions. Second operand has 51 states, 43 states have (on average 1.744186046511628) internal successors, (75), 38 states have internal predecessors, (75), 15 states have call successors, (19), 10 states have call predecessors, (19), 13 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17)