./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_priority_queue_s_sift_either_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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 11:15:08,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:15:08,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:15:08,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:15:08,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:15:08,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:15:08,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:15:08,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:15:08,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:15:08,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:15:08,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:15:08,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:15:08,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:15:08,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:15:08,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:15:08,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:15:08,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:15:08,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:15:08,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:15:08,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:15:08,790 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:15:08,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:15:08,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:15:08,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:15:08,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:15:08,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:15:08,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:15:08,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:15:08,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:15:08,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:15:08,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:15:08,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:15:08,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:15:08,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:15:08,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:15:08,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:15:08,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:15:08,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:15:08,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:15:08,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:15:08,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:15:08,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:15:08,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:15:08,844 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:15:08,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:15:08,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:15:08,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:15:08,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:15:08,845 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:15:08,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:15:08,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:15:08,846 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:15:08,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:15:08,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:15:08,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:15:08,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:15:08,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:15:08,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:15:08,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:15:08,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:15:08,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:15:08,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:15:08,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:15:08,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:15:08,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:15:08,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:15:08,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:15:08,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:15:08,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:15:08,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:15:08,851 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:15:08,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:15:08,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:15:08,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2022-07-12 11:15:09,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:15:09,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:15:09,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:15:09,063 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:15:09,063 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:15:09,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-07-12 11:15:09,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1e4167be/797cf4a909794eac8456fca95cfcf5ca/FLAG88981da8a [2022-07-12 11:15:09,717 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:15:09,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-07-12 11:15:09,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1e4167be/797cf4a909794eac8456fca95cfcf5ca/FLAG88981da8a [2022-07-12 11:15:09,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1e4167be/797cf4a909794eac8456fca95cfcf5ca [2022-07-12 11:15:09,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:15:09,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:15:09,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:15:09,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:15:09,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:15:09,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:15:09" (1/1) ... [2022-07-12 11:15:09,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6289f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:09, skipping insertion in model container [2022-07-12 11:15:09,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:15:09" (1/1) ... [2022-07-12 11:15:09,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:15:10,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:15:10,194 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_priority_queue_s_sift_either_harness.i[4506,4519] [2022-07-12 11:15:10,199 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_priority_queue_s_sift_either_harness.i[4566,4579] [2022-07-12 11:15:10,630 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,631 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,632 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,632 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,634 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,641 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,642 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,643 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,643 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,644 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,645 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,645 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,646 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,870 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:15:10,872 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:15:10,873 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:15:10,874 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:15:10,875 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:15:10,875 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:15:10,876 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:15:10,876 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:15:10,877 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:15:10,878 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:15:10,960 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:15:10,978 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,978 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,981 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:10,985 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,019 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,020 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,020 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,020 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,020 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,020 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,021 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,021 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,021 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,021 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,022 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,022 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,022 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,024 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,024 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,024 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,024 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,026 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,027 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,031 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,032 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,032 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:15:11,075 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:15:11,091 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_priority_queue_s_sift_either_harness.i[4506,4519] [2022-07-12 11:15:11,092 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_priority_queue_s_sift_either_harness.i[4566,4579] [2022-07-12 11:15:11,118 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,119 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,119 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,119 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,120 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,128 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,128 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,129 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,129 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,130 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,130 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,130 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,131 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,163 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:15:11,164 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:15:11,164 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:15:11,165 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:15:11,165 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:15:11,166 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:15:11,166 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:15:11,166 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:15:11,166 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:15:11,167 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:15:11,186 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:15:11,210 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,210 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,211 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,215 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,237 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,238 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,238 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,238 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,238 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,239 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,239 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,239 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,239 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,240 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,240 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,240 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,240 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,241 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,241 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,241 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,241 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,243 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,243 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,246 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,246 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,246 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:11,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:15:11,392 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:15:11,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11 WrapperNode [2022-07-12 11:15:11,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:15:11,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:15:11,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:15:11,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:15:11,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (1/1) ... [2022-07-12 11:15:11,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (1/1) ... [2022-07-12 11:15:11,548 INFO L137 Inliner]: procedures = 697, calls = 1887, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 919 [2022-07-12 11:15:11,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:15:11,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:15:11,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:15:11,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:15:11,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (1/1) ... [2022-07-12 11:15:11,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (1/1) ... [2022-07-12 11:15:11,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (1/1) ... [2022-07-12 11:15:11,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (1/1) ... [2022-07-12 11:15:11,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (1/1) ... [2022-07-12 11:15:11,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (1/1) ... [2022-07-12 11:15:11,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (1/1) ... [2022-07-12 11:15:11,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:15:11,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:15:11,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:15:11,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:15:11,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (1/1) ... [2022-07-12 11:15:11,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:15:11,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:11,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 11:15:11,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 11:15:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2022-07-12 11:15:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2022-07-12 11:15:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-12 11:15:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-12 11:15:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-12 11:15:11,707 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-12 11:15:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 11:15:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-12 11:15:11,707 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-12 11:15:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-12 11:15:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-12 11:15:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-12 11:15:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-12 11:15:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-12 11:15:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-12 11:15:11,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 11:15:11,709 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-12 11:15:11,711 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-12 11:15:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 11:15:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 11:15:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 11:15:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:15:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 11:15:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-12 11:15:11,713 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-12 11:15:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-12 11:15:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-12 11:15:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:15:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:15:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-12 11:15:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-12 11:15:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-12 11:15:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-12 11:15:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-12 11:15:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-12 11:15:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-12 11:15:11,718 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-12 11:15:11,718 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-12 11:15:11,718 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-12 11:15:11,718 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 11:15:11,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 11:15:11,718 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-12 11:15:11,718 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-12 11:15:11,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 11:15:11,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 11:15:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:15:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-12 11:15:11,719 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-12 11:15:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-12 11:15:11,719 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-12 11:15:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-12 11:15:11,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-12 11:15:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 11:15:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-12 11:15:11,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-12 11:15:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-12 11:15:11,720 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-12 11:15:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 11:15:11,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 11:15:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 11:15:11,979 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:15:11,980 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:15:12,837 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:15:12,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:15:12,853 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-12 11:15:12,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:15:12 BoogieIcfgContainer [2022-07-12 11:15:12,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:15:12,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:15:12,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:15:12,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:15:12,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:15:09" (1/3) ... [2022-07-12 11:15:12,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d56a88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:15:12, skipping insertion in model container [2022-07-12 11:15:12,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:11" (2/3) ... [2022-07-12 11:15:12,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d56a88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:15:12, skipping insertion in model container [2022-07-12 11:15:12,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:15:12" (3/3) ... [2022-07-12 11:15:12,862 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2022-07-12 11:15:12,871 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:15:12,871 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 11:15:12,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:15:12,938 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@10ae25ea, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@31e14515 [2022-07-12 11:15:12,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 11:15:12,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 218 states have (on average 1.2660550458715596) internal successors, (276), 221 states have internal predecessors, (276), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2022-07-12 11:15:12,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 11:15:12,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:12,953 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-07-12 11:15:12,954 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:12,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:12,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1703596242, now seen corresponding path program 1 times [2022-07-12 11:15:12,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:12,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420245677] [2022-07-12 11:15:12,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:12,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:15:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:15:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:15:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:15:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:15:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 11:15:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 11:15:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 11:15:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 11:15:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 11:15:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 11:15:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-12 11:15:13,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:13,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420245677] [2022-07-12 11:15:13,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420245677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:13,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:13,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:15:13,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805932216] [2022-07-12 11:15:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:13,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:15:13,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:13,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:15:13,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:15:13,578 INFO L87 Difference]: Start difference. First operand has 358 states, 218 states have (on average 1.2660550458715596) internal successors, (276), 221 states have internal predecessors, (276), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 11:15:14,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:14,451 INFO L93 Difference]: Finished difference Result 821 states and 1341 transitions. [2022-07-12 11:15:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 11:15:14,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-07-12 11:15:14,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:14,472 INFO L225 Difference]: With dead ends: 821 [2022-07-12 11:15:14,472 INFO L226 Difference]: Without dead ends: 469 [2022-07-12 11:15:14,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:15:14,486 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 267 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:14,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 627 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 11:15:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-07-12 11:15:14,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 351. [2022-07-12 11:15:14,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 213 states have (on average 1.2300469483568075) internal successors, (262), 215 states have internal predecessors, (262), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-12 11:15:14,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 486 transitions. [2022-07-12 11:15:14,555 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 486 transitions. Word has length 103 [2022-07-12 11:15:14,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:14,557 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 486 transitions. [2022-07-12 11:15:14,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 11:15:14,558 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 486 transitions. [2022-07-12 11:15:14,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 11:15:14,564 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:14,565 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-07-12 11:15:14,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 11:15:14,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:14,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:14,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1175202252, now seen corresponding path program 1 times [2022-07-12 11:15:14,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:14,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379500550] [2022-07-12 11:15:14,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:14,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:15:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:15:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:15:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:15:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:15:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 11:15:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 11:15:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 11:15:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 11:15:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 11:15:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 11:15:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:14,884 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-12 11:15:14,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:14,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379500550] [2022-07-12 11:15:14,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379500550] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:15:14,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358916179] [2022-07-12 11:15:14,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:14,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:14,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:14,886 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:14,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 11:15:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 2158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:15:15,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:15,252 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-07-12 11:15:15,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:15,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358916179] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:15,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:15:15,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-07-12 11:15:15,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262374647] [2022-07-12 11:15:15,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:15,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:15:15,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:15,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:15:15,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:15:15,254 INFO L87 Difference]: Start difference. First operand 351 states and 486 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 11:15:15,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:15,287 INFO L93 Difference]: Finished difference Result 437 states and 596 transitions. [2022-07-12 11:15:15,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:15:15,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-07-12 11:15:15,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:15,299 INFO L225 Difference]: With dead ends: 437 [2022-07-12 11:15:15,299 INFO L226 Difference]: Without dead ends: 352 [2022-07-12 11:15:15,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:15:15,301 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:15,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 965 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:15,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-07-12 11:15:15,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2022-07-12 11:15:15,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 214 states have (on average 1.2289719626168225) internal successors, (263), 216 states have internal predecessors, (263), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-12 11:15:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 487 transitions. [2022-07-12 11:15:15,329 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 487 transitions. Word has length 103 [2022-07-12 11:15:15,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:15,329 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 487 transitions. [2022-07-12 11:15:15,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 11:15:15,330 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 487 transitions. [2022-07-12 11:15:15,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-12 11:15:15,331 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:15,331 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 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] [2022-07-12 11:15:15,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:15,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:15,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:15,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:15,555 INFO L85 PathProgramCache]: Analyzing trace with hash -99696786, now seen corresponding path program 1 times [2022-07-12 11:15:15,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:15,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476688484] [2022-07-12 11:15:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:15,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:15:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:15:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:15:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:15:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:15:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 11:15:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 11:15:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 11:15:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 11:15:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 11:15:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 11:15:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 11:15:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 11:15:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 11:15:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-12 11:15:15,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:15,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476688484] [2022-07-12 11:15:15,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476688484] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:15:15,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332209447] [2022-07-12 11:15:15,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:15,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:15,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:15,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:15,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 11:15:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 2271 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 11:15:16,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:16,335 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-12 11:15:16,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:16,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332209447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:16,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:15:16,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-12 11:15:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523797343] [2022-07-12 11:15:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:16,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:15:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:15:16,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:15:16,336 INFO L87 Difference]: Start difference. First operand 352 states and 487 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 11:15:16,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:16,525 INFO L93 Difference]: Finished difference Result 670 states and 938 transitions. [2022-07-12 11:15:16,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:15:16,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 124 [2022-07-12 11:15:16,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:16,528 INFO L225 Difference]: With dead ends: 670 [2022-07-12 11:15:16,528 INFO L226 Difference]: Without dead ends: 354 [2022-07-12 11:15:16,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-12 11:15:16,530 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 504 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:16,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1709 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:15:16,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-07-12 11:15:16,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2022-07-12 11:15:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 215 states have (on average 1.2279069767441861) internal successors, (264), 218 states have internal predecessors, (264), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2022-07-12 11:15:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 496 transitions. [2022-07-12 11:15:16,546 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 496 transitions. Word has length 124 [2022-07-12 11:15:16,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:16,546 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 496 transitions. [2022-07-12 11:15:16,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 11:15:16,546 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 496 transitions. [2022-07-12 11:15:16,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-12 11:15:16,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:16,547 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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] [2022-07-12 11:15:16,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:16,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-12 11:15:16,767 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:16,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:16,767 INFO L85 PathProgramCache]: Analyzing trace with hash -2138740587, now seen corresponding path program 1 times [2022-07-12 11:15:16,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:16,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132649570] [2022-07-12 11:15:16,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:16,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:15:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:15:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:15:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:15:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:15:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:16,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 11:15:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 11:15:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 11:15:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 11:15:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 11:15:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 11:15:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 11:15:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 11:15:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 11:15:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,060 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-12 11:15:17,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:17,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132649570] [2022-07-12 11:15:17,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132649570] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:15:17,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485984277] [2022-07-12 11:15:17,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:17,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:17,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:17,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:17,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 11:15:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:17,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 2321 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 11:15:17,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-12 11:15:17,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:17,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485984277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:17,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:15:17,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-07-12 11:15:17,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387805313] [2022-07-12 11:15:17,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:17,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:15:17,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:17,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:15:17,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-07-12 11:15:17,542 INFO L87 Difference]: Start difference. First operand 354 states and 496 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-12 11:15:17,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:17,751 INFO L93 Difference]: Finished difference Result 693 states and 993 transitions. [2022-07-12 11:15:17,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 11:15:17,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 132 [2022-07-12 11:15:17,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:17,753 INFO L225 Difference]: With dead ends: 693 [2022-07-12 11:15:17,753 INFO L226 Difference]: Without dead ends: 375 [2022-07-12 11:15:17,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-12 11:15:17,755 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 96 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2587 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:17,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2587 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:15:17,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-07-12 11:15:17,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2022-07-12 11:15:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2380952380952381) internal successors, (286), 234 states have internal predecessors, (286), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-12 11:15:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2022-07-12 11:15:17,770 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 132 [2022-07-12 11:15:17,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:17,771 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2022-07-12 11:15:17,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-12 11:15:17,771 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2022-07-12 11:15:17,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-12 11:15:17,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:17,772 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:17,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:17,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:17,988 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:17,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:17,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1048395964, now seen corresponding path program 1 times [2022-07-12 11:15:17,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:17,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654946462] [2022-07-12 11:15:17,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:17,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:18,057 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:18,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1263037595] [2022-07-12 11:15:18,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:18,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:18,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:18,059 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:18,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 11:15:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:18,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:15:18,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:18,511 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-12 11:15:18,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:18,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:18,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654946462] [2022-07-12 11:15:18,512 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:18,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263037595] [2022-07-12 11:15:18,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263037595] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:18,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:18,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 11:15:18,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542532503] [2022-07-12 11:15:18,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:18,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:15:18,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:18,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:15:18,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:15:18,513 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-12 11:15:18,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:18,733 INFO L93 Difference]: Finished difference Result 718 states and 1050 transitions. [2022-07-12 11:15:18,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:18,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 147 [2022-07-12 11:15:18,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:18,737 INFO L225 Difference]: With dead ends: 718 [2022-07-12 11:15:18,737 INFO L226 Difference]: Without dead ends: 381 [2022-07-12 11:15:18,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-12 11:15:18,739 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 528 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:18,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 2094 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:15:18,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-07-12 11:15:18,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 373. [2022-07-12 11:15:18,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2380952380952381) internal successors, (286), 234 states have internal predecessors, (286), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-12 11:15:18,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2022-07-12 11:15:18,755 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 147 [2022-07-12 11:15:18,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:18,755 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2022-07-12 11:15:18,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-12 11:15:18,756 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2022-07-12 11:15:18,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-12 11:15:18,757 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:18,757 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 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, 1, 1] [2022-07-12 11:15:18,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:18,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:18,977 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:18,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:18,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1514523470, now seen corresponding path program 1 times [2022-07-12 11:15:18,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:18,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638102262] [2022-07-12 11:15:18,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:18,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:19,034 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:19,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29706571] [2022-07-12 11:15:19,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:19,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:19,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:19,036 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:19,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 11:15:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:19,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 2534 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 11:15:19,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-12 11:15:19,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:19,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:19,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638102262] [2022-07-12 11:15:19,512 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:19,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29706571] [2022-07-12 11:15:19,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29706571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:19,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:19,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 11:15:19,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617065994] [2022-07-12 11:15:19,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:19,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:15:19,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:19,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:15:19,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:15:19,513 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-12 11:15:19,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:19,785 INFO L93 Difference]: Finished difference Result 744 states and 1088 transitions. [2022-07-12 11:15:19,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:19,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 163 [2022-07-12 11:15:19,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:19,788 INFO L225 Difference]: With dead ends: 744 [2022-07-12 11:15:19,788 INFO L226 Difference]: Without dead ends: 407 [2022-07-12 11:15:19,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:15:19,790 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 117 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:19,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2967 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:15:19,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-07-12 11:15:19,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 373. [2022-07-12 11:15:19,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2380952380952381) internal successors, (286), 234 states have internal predecessors, (286), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-12 11:15:19,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2022-07-12 11:15:19,803 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 163 [2022-07-12 11:15:19,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:19,804 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2022-07-12 11:15:19,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-12 11:15:19,804 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2022-07-12 11:15:19,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-12 11:15:19,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:19,806 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 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] [2022-07-12 11:15:19,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:20,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:20,029 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:20,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:20,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1136730081, now seen corresponding path program 1 times [2022-07-12 11:15:20,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:20,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78278042] [2022-07-12 11:15:20,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:20,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:20,075 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:20,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381357952] [2022-07-12 11:15:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:20,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:20,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:20,077 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:20,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 11:15:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:20,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 2675 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:15:20,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:20,549 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-07-12 11:15:20,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:20,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:20,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78278042] [2022-07-12 11:15:20,549 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:20,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381357952] [2022-07-12 11:15:20,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381357952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:20,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:20,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 11:15:20,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711913646] [2022-07-12 11:15:20,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:20,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:15:20,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:20,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:15:20,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:15:20,552 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-12 11:15:20,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:20,807 INFO L93 Difference]: Finished difference Result 683 states and 991 transitions. [2022-07-12 11:15:20,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:20,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 178 [2022-07-12 11:15:20,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:20,817 INFO L225 Difference]: With dead ends: 683 [2022-07-12 11:15:20,817 INFO L226 Difference]: Without dead ends: 375 [2022-07-12 11:15:20,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-12 11:15:20,819 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 545 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:20,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 2422 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:15:20,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-07-12 11:15:20,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-07-12 11:15:20,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 232 states have (on average 1.2370689655172413) internal successors, (287), 236 states have internal predecessors, (287), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-07-12 11:15:20,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 540 transitions. [2022-07-12 11:15:20,861 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 540 transitions. Word has length 178 [2022-07-12 11:15:20,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:20,861 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 540 transitions. [2022-07-12 11:15:20,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-12 11:15:20,862 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 540 transitions. [2022-07-12 11:15:20,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-12 11:15:20,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:20,863 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:20,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:21,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:21,083 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:21,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:21,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1083469799, now seen corresponding path program 1 times [2022-07-12 11:15:21,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:21,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448107446] [2022-07-12 11:15:21,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:21,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:21,138 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:21,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23098928] [2022-07-12 11:15:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:21,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:21,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:21,140 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) [2022-07-12 11:15:21,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 11:15:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:21,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 2866 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:21,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:21,626 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-07-12 11:15:21,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:21,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:21,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448107446] [2022-07-12 11:15:21,626 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:21,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23098928] [2022-07-12 11:15:21,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23098928] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:21,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:21,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 11:15:21,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31652538] [2022-07-12 11:15:21,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:21,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 11:15:21,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:21,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 11:15:21,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:15:21,628 INFO L87 Difference]: Start difference. First operand 375 states and 540 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-12 11:15:21,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:21,970 INFO L93 Difference]: Finished difference Result 688 states and 1006 transitions. [2022-07-12 11:15:21,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:21,970 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 201 [2022-07-12 11:15:21,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:21,972 INFO L225 Difference]: With dead ends: 688 [2022-07-12 11:15:21,972 INFO L226 Difference]: Without dead ends: 378 [2022-07-12 11:15:21,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-12 11:15:21,974 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 569 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:21,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 2773 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:21,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-07-12 11:15:21,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2022-07-12 11:15:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 233 states have (on average 1.2360515021459229) internal successors, (288), 237 states have internal predecessors, (288), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-07-12 11:15:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 541 transitions. [2022-07-12 11:15:21,987 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 541 transitions. Word has length 201 [2022-07-12 11:15:21,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:21,987 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 541 transitions. [2022-07-12 11:15:21,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-12 11:15:21,987 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 541 transitions. [2022-07-12 11:15:21,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-12 11:15:21,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:21,989 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2022-07-12 11:15:22,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:22,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:22,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:22,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:22,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2112387732, now seen corresponding path program 2 times [2022-07-12 11:15:22,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:22,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075006344] [2022-07-12 11:15:22,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:22,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:22,244 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:22,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [121662439] [2022-07-12 11:15:22,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:15:22,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:22,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:22,246 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) [2022-07-12 11:15:22,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-12 11:15:22,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 11:15:22,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:15:22,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1848 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:15:22,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-07-12 11:15:22,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:22,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:22,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075006344] [2022-07-12 11:15:22,655 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:22,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121662439] [2022-07-12 11:15:22,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121662439] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:22,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:22,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:15:22,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13886471] [2022-07-12 11:15:22,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:22,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:15:22,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:22,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:15:22,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:15:22,656 INFO L87 Difference]: Start difference. First operand 376 states and 541 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 11:15:22,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:22,691 INFO L93 Difference]: Finished difference Result 660 states and 957 transitions. [2022-07-12 11:15:22,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:15:22,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 232 [2022-07-12 11:15:22,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:22,693 INFO L225 Difference]: With dead ends: 660 [2022-07-12 11:15:22,694 INFO L226 Difference]: Without dead ends: 386 [2022-07-12 11:15:22,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:15:22,696 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 16 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:22,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 952 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:22,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-12 11:15:22,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 381. [2022-07-12 11:15:22,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 238 states have (on average 1.23109243697479) internal successors, (293), 242 states have internal predecessors, (293), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-07-12 11:15:22,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 546 transitions. [2022-07-12 11:15:22,711 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 546 transitions. Word has length 232 [2022-07-12 11:15:22,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:22,711 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 546 transitions. [2022-07-12 11:15:22,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 11:15:22,711 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 546 transitions. [2022-07-12 11:15:22,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-12 11:15:22,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:22,713 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 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, 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] [2022-07-12 11:15:22,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:22,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-12 11:15:22,935 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:22,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:22,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1034024686, now seen corresponding path program 1 times [2022-07-12 11:15:22,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:22,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177216426] [2022-07-12 11:15:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:22,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:22,990 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:22,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [846211655] [2022-07-12 11:15:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:22,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:22,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:22,992 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) [2022-07-12 11:15:22,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-12 11:15:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:23,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 2801 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 11:15:23,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-12 11:15:23,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:15:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-07-12 11:15:23,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:23,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177216426] [2022-07-12 11:15:23,856 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:23,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846211655] [2022-07-12 11:15:23,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846211655] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:15:23,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 11:15:23,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-07-12 11:15:23,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412361885] [2022-07-12 11:15:23,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 11:15:23,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 11:15:23,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:23,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 11:15:23,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-12 11:15:23,859 INFO L87 Difference]: Start difference. First operand 381 states and 546 transitions. Second operand has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 9 states have call successors, (43), 4 states have call predecessors, (43), 4 states have return successors, (39), 5 states have call predecessors, (39), 9 states have call successors, (39) [2022-07-12 11:15:24,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:24,218 INFO L93 Difference]: Finished difference Result 716 states and 1045 transitions. [2022-07-12 11:15:24,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 11:15:24,219 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 9 states have call successors, (43), 4 states have call predecessors, (43), 4 states have return successors, (39), 5 states have call predecessors, (39), 9 states have call successors, (39) Word has length 204 [2022-07-12 11:15:24,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:24,222 INFO L225 Difference]: With dead ends: 716 [2022-07-12 11:15:24,222 INFO L226 Difference]: Without dead ends: 400 [2022-07-12 11:15:24,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-07-12 11:15:24,224 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 174 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 4714 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:24,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 4714 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:24,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-07-12 11:15:24,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 394. [2022-07-12 11:15:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 250 states have (on average 1.24) internal successors, (310), 253 states have internal predecessors, (310), 116 states have call successors, (116), 24 states have call predecessors, (116), 26 states have return successors, (139), 116 states have call predecessors, (139), 114 states have call successors, (139) [2022-07-12 11:15:24,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 565 transitions. [2022-07-12 11:15:24,241 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 565 transitions. Word has length 204 [2022-07-12 11:15:24,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:24,243 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 565 transitions. [2022-07-12 11:15:24,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 9 states have call successors, (43), 4 states have call predecessors, (43), 4 states have return successors, (39), 5 states have call predecessors, (39), 9 states have call successors, (39) [2022-07-12 11:15:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 565 transitions. [2022-07-12 11:15:24,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-12 11:15:24,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:24,246 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-07-12 11:15:24,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:24,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-12 11:15:24,459 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:24,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:24,460 INFO L85 PathProgramCache]: Analyzing trace with hash -247754433, now seen corresponding path program 2 times [2022-07-12 11:15:24,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:24,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945257646] [2022-07-12 11:15:24,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:24,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:24,521 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:24,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55846939] [2022-07-12 11:15:24,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:15:24,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:24,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:24,527 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) [2022-07-12 11:15:24,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-12 11:15:25,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 11:15:25,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:15:25,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 11:15:25,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-12 11:15:25,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:25,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:25,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945257646] [2022-07-12 11:15:25,410 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:25,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55846939] [2022-07-12 11:15:25,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55846939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:25,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:25,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 11:15:25,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231630645] [2022-07-12 11:15:25,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:25,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 11:15:25,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:25,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 11:15:25,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:15:25,413 INFO L87 Difference]: Start difference. First operand 394 states and 565 transitions. Second operand has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-12 11:15:25,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:25,791 INFO L93 Difference]: Finished difference Result 741 states and 1080 transitions. [2022-07-12 11:15:25,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:25,791 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 219 [2022-07-12 11:15:25,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:25,794 INFO L225 Difference]: With dead ends: 741 [2022-07-12 11:15:25,794 INFO L226 Difference]: Without dead ends: 412 [2022-07-12 11:15:25,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-12 11:15:25,796 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 177 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:25,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 3710 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:25,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-07-12 11:15:25,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 378. [2022-07-12 11:15:25,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 236 states have (on average 1.2330508474576272) internal successors, (291), 239 states have internal predecessors, (291), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (130), 114 states have call predecessors, (130), 113 states have call successors, (130) [2022-07-12 11:15:25,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 536 transitions. [2022-07-12 11:15:25,843 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 536 transitions. Word has length 219 [2022-07-12 11:15:25,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:25,843 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 536 transitions. [2022-07-12 11:15:25,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-12 11:15:25,844 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 536 transitions. [2022-07-12 11:15:25,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-12 11:15:25,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:25,846 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2022-07-12 11:15:25,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:26,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-12 11:15:26,055 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:26,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:26,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1511536, now seen corresponding path program 1 times [2022-07-12 11:15:26,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:26,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604808747] [2022-07-12 11:15:26,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:26,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:26,102 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:26,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876790147] [2022-07-12 11:15:26,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:26,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:26,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:26,104 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) [2022-07-12 11:15:26,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-12 11:15:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 3083 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:26,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-07-12 11:15:26,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:26,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:26,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604808747] [2022-07-12 11:15:26,656 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:26,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876790147] [2022-07-12 11:15:26,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876790147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:26,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:26,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 11:15:26,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683132282] [2022-07-12 11:15:26,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:26,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 11:15:26,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:26,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 11:15:26,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:15:26,660 INFO L87 Difference]: Start difference. First operand 378 states and 536 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-12 11:15:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:27,054 INFO L93 Difference]: Finished difference Result 684 states and 982 transitions. [2022-07-12 11:15:27,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:27,071 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 234 [2022-07-12 11:15:27,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:27,073 INFO L225 Difference]: With dead ends: 684 [2022-07-12 11:15:27,073 INFO L226 Difference]: Without dead ends: 380 [2022-07-12 11:15:27,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-07-12 11:15:27,075 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 590 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:27,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 3101 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:27,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-07-12 11:15:27,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2022-07-12 11:15:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 237 states have (on average 1.2320675105485233) internal successors, (292), 241 states have internal predecessors, (292), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (134), 114 states have call predecessors, (134), 113 states have call successors, (134) [2022-07-12 11:15:27,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 541 transitions. [2022-07-12 11:15:27,087 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 541 transitions. Word has length 234 [2022-07-12 11:15:27,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:27,087 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 541 transitions. [2022-07-12 11:15:27,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-12 11:15:27,088 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 541 transitions. [2022-07-12 11:15:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-07-12 11:15:27,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:27,090 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 11:15:27,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:27,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-12 11:15:27,312 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:27,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:27,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1366410168, now seen corresponding path program 1 times [2022-07-12 11:15:27,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:27,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583515409] [2022-07-12 11:15:27,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:27,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:27,359 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:27,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366818442] [2022-07-12 11:15:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:27,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:27,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:27,361 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) [2022-07-12 11:15:27,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-12 11:15:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:27,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 3465 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 11:15:27,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:28,005 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-12 11:15:28,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:28,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:28,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583515409] [2022-07-12 11:15:28,005 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:28,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366818442] [2022-07-12 11:15:28,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366818442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:28,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:28,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 11:15:28,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657020280] [2022-07-12 11:15:28,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:28,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 11:15:28,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:28,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 11:15:28,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:15:28,007 INFO L87 Difference]: Start difference. First operand 380 states and 541 transitions. Second operand has 11 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-12 11:15:28,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:28,484 INFO L93 Difference]: Finished difference Result 689 states and 993 transitions. [2022-07-12 11:15:28,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 11:15:28,484 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 280 [2022-07-12 11:15:28,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:28,487 INFO L225 Difference]: With dead ends: 689 [2022-07-12 11:15:28,487 INFO L226 Difference]: Without dead ends: 383 [2022-07-12 11:15:28,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-07-12 11:15:28,490 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 614 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:28,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 3423 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 11:15:28,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-07-12 11:15:28,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 381. [2022-07-12 11:15:28,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 238 states have (on average 1.23109243697479) internal successors, (293), 242 states have internal predecessors, (293), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (134), 114 states have call predecessors, (134), 113 states have call successors, (134) [2022-07-12 11:15:28,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 542 transitions. [2022-07-12 11:15:28,507 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 542 transitions. Word has length 280 [2022-07-12 11:15:28,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:28,507 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 542 transitions. [2022-07-12 11:15:28,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-12 11:15:28,508 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 542 transitions. [2022-07-12 11:15:28,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-07-12 11:15:28,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:28,510 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2022-07-12 11:15:28,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:28,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-12 11:15:28,728 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:28,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:28,728 INFO L85 PathProgramCache]: Analyzing trace with hash 473503328, now seen corresponding path program 1 times [2022-07-12 11:15:28,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:28,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865526612] [2022-07-12 11:15:28,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:28,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:28,779 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:28,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641999293] [2022-07-12 11:15:28,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:28,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:28,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:28,781 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:28,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-12 11:15:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:29,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 3120 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:29,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-12 11:15:29,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:29,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:29,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865526612] [2022-07-12 11:15:29,368 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:29,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641999293] [2022-07-12 11:15:29,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641999293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:29,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:29,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 11:15:29,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948544508] [2022-07-12 11:15:29,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:29,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 11:15:29,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:29,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 11:15:29,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:15:29,370 INFO L87 Difference]: Start difference. First operand 381 states and 542 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-12 11:15:29,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:29,689 INFO L93 Difference]: Finished difference Result 654 states and 938 transitions. [2022-07-12 11:15:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 11:15:29,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 248 [2022-07-12 11:15:29,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:29,695 INFO L225 Difference]: With dead ends: 654 [2022-07-12 11:15:29,695 INFO L226 Difference]: Without dead ends: 388 [2022-07-12 11:15:29,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-07-12 11:15:29,699 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 573 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:29,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 2772 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:29,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-07-12 11:15:29,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2022-07-12 11:15:29,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 239 states have (on average 1.2301255230125523) internal successors, (294), 244 states have internal predecessors, (294), 115 states have call successors, (115), 24 states have call predecessors, (115), 27 states have return successors, (136), 114 states have call predecessors, (136), 113 states have call successors, (136) [2022-07-12 11:15:29,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 545 transitions. [2022-07-12 11:15:29,711 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 545 transitions. Word has length 248 [2022-07-12 11:15:29,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:29,712 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 545 transitions. [2022-07-12 11:15:29,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-12 11:15:29,712 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 545 transitions. [2022-07-12 11:15:29,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-12 11:15:29,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:29,714 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:29,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:29,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-12 11:15:29,923 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:29,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:29,924 INFO L85 PathProgramCache]: Analyzing trace with hash 648621032, now seen corresponding path program 1 times [2022-07-12 11:15:29,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:29,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847722840] [2022-07-12 11:15:29,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:29,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:29,988 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:29,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [271113541] [2022-07-12 11:15:29,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:29,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:29,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:29,990 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:30,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-12 11:15:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:30,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 3311 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 11:15:30,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:30,593 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-07-12 11:15:30,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:30,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:30,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847722840] [2022-07-12 11:15:30,593 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:30,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271113541] [2022-07-12 11:15:30,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271113541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:30,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:30,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 11:15:30,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532757072] [2022-07-12 11:15:30,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:30,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 11:15:30,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:30,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 11:15:30,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:15:30,595 INFO L87 Difference]: Start difference. First operand 383 states and 545 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-12 11:15:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:31,008 INFO L93 Difference]: Finished difference Result 656 states and 939 transitions. [2022-07-12 11:15:31,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 11:15:31,016 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 271 [2022-07-12 11:15:31,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:31,018 INFO L225 Difference]: With dead ends: 656 [2022-07-12 11:15:31,018 INFO L226 Difference]: Without dead ends: 388 [2022-07-12 11:15:31,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-07-12 11:15:31,020 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 591 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:31,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 3126 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-07-12 11:15:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 381. [2022-07-12 11:15:31,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 238 states have (on average 1.23109243697479) internal successors, (293), 242 states have internal predecessors, (293), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-12 11:15:31,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 540 transitions. [2022-07-12 11:15:31,060 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 540 transitions. Word has length 271 [2022-07-12 11:15:31,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:31,060 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 540 transitions. [2022-07-12 11:15:31,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-12 11:15:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 540 transitions. [2022-07-12 11:15:31,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-07-12 11:15:31,062 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:31,062 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:15:31,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:31,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:31,274 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:31,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:31,274 INFO L85 PathProgramCache]: Analyzing trace with hash 451085598, now seen corresponding path program 1 times [2022-07-12 11:15:31,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:31,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456742193] [2022-07-12 11:15:31,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:31,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:31,333 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:31,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741222782] [2022-07-12 11:15:31,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:31,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:31,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:31,335 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:31,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-12 11:15:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:31,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 3383 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-12 11:15:31,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-07-12 11:15:31,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:31,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:31,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456742193] [2022-07-12 11:15:31,958 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:31,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741222782] [2022-07-12 11:15:31,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741222782] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:31,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:31,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 11:15:31,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302737128] [2022-07-12 11:15:31,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:31,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 11:15:31,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:31,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 11:15:31,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:15:31,959 INFO L87 Difference]: Start difference. First operand 381 states and 540 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2022-07-12 11:15:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:32,372 INFO L93 Difference]: Finished difference Result 670 states and 960 transitions. [2022-07-12 11:15:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 11:15:32,373 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) Word has length 287 [2022-07-12 11:15:32,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:32,375 INFO L225 Difference]: With dead ends: 670 [2022-07-12 11:15:32,375 INFO L226 Difference]: Without dead ends: 404 [2022-07-12 11:15:32,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-12 11:15:32,377 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 198 mSDsluCounter, 3621 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:32,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 4066 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 11:15:32,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-07-12 11:15:32,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 397. [2022-07-12 11:15:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 252 states have (on average 1.2380952380952381) internal successors, (312), 256 states have internal predecessors, (312), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (137), 116 states have call predecessors, (137), 114 states have call successors, (137) [2022-07-12 11:15:32,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 565 transitions. [2022-07-12 11:15:32,393 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 565 transitions. Word has length 287 [2022-07-12 11:15:32,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:32,393 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 565 transitions. [2022-07-12 11:15:32,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2022-07-12 11:15:32,394 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 565 transitions. [2022-07-12 11:15:32,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-12 11:15:32,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:32,395 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:15:32,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:32,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-12 11:15:32,603 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:32,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1306212493, now seen corresponding path program 2 times [2022-07-12 11:15:32,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:32,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580762902] [2022-07-12 11:15:32,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:32,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:32,662 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:32,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967477828] [2022-07-12 11:15:32,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:15:32,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:32,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:32,666 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:32,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-12 11:15:33,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 11:15:33,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:15:33,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 3524 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 11:15:33,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:33,488 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2022-07-12 11:15:33,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:33,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:33,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580762902] [2022-07-12 11:15:33,490 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:33,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967477828] [2022-07-12 11:15:33,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967477828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:33,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:33,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 11:15:33,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172374009] [2022-07-12 11:15:33,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:33,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 11:15:33,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:33,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 11:15:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:15:33,493 INFO L87 Difference]: Start difference. First operand 397 states and 565 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-12 11:15:33,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:33,786 INFO L93 Difference]: Finished difference Result 691 states and 990 transitions. [2022-07-12 11:15:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:33,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) Word has length 302 [2022-07-12 11:15:33,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:33,791 INFO L225 Difference]: With dead ends: 691 [2022-07-12 11:15:33,791 INFO L226 Difference]: Without dead ends: 414 [2022-07-12 11:15:33,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-12 11:15:33,793 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 123 mSDsluCounter, 3380 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:33,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 3843 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:15:33,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-07-12 11:15:33,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 409. [2022-07-12 11:15:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 258 states have (on average 1.2364341085271318) internal successors, (319), 262 states have internal predecessors, (319), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (142), 121 states have call predecessors, (142), 119 states have call successors, (142) [2022-07-12 11:15:33,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 582 transitions. [2022-07-12 11:15:33,808 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 582 transitions. Word has length 302 [2022-07-12 11:15:33,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:33,808 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 582 transitions. [2022-07-12 11:15:33,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-12 11:15:33,808 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 582 transitions. [2022-07-12 11:15:33,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-12 11:15:33,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:33,810 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 11:15:33,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:34,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-12 11:15:34,033 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:34,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:34,034 INFO L85 PathProgramCache]: Analyzing trace with hash 386011154, now seen corresponding path program 1 times [2022-07-12 11:15:34,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:34,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281372093] [2022-07-12 11:15:34,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:34,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:34,083 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:34,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848415046] [2022-07-12 11:15:34,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:34,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:34,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:34,086 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:34,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-12 11:15:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:34,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 3327 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 11:15:34,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-12 11:15:34,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:15:34,994 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-12 11:15:34,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:34,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281372093] [2022-07-12 11:15:34,995 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:34,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848415046] [2022-07-12 11:15:34,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848415046] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:15:34,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 11:15:34,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2022-07-12 11:15:34,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344503998] [2022-07-12 11:15:34,996 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 11:15:34,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-12 11:15:34,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:34,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-12 11:15:34,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-07-12 11:15:34,997 INFO L87 Difference]: Start difference. First operand 409 states and 582 transitions. Second operand has 18 states, 16 states have (on average 8.3125) internal successors, (133), 14 states have internal predecessors, (133), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) [2022-07-12 11:15:35,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:35,416 INFO L93 Difference]: Finished difference Result 763 states and 1095 transitions. [2022-07-12 11:15:35,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 11:15:35,417 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.3125) internal successors, (133), 14 states have internal predecessors, (133), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) Word has length 282 [2022-07-12 11:15:35,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:35,419 INFO L225 Difference]: With dead ends: 763 [2022-07-12 11:15:35,419 INFO L226 Difference]: Without dead ends: 428 [2022-07-12 11:15:35,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2022-07-12 11:15:35,421 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 388 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:35,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 3669 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:35,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-07-12 11:15:35,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 422. [2022-07-12 11:15:35,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 270 states have (on average 1.2444444444444445) internal successors, (336), 273 states have internal predecessors, (336), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-12 11:15:35,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 599 transitions. [2022-07-12 11:15:35,434 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 599 transitions. Word has length 282 [2022-07-12 11:15:35,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:35,434 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 599 transitions. [2022-07-12 11:15:35,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.3125) internal successors, (133), 14 states have internal predecessors, (133), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) [2022-07-12 11:15:35,435 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 599 transitions. [2022-07-12 11:15:35,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-07-12 11:15:35,436 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:35,436 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 11:15:35,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:35,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-12 11:15:35,659 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:35,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:35,659 INFO L85 PathProgramCache]: Analyzing trace with hash -303731720, now seen corresponding path program 2 times [2022-07-12 11:15:35,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:35,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313498593] [2022-07-12 11:15:35,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:35,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:35,705 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:35,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1522083255] [2022-07-12 11:15:35,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:15:35,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:35,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:35,707 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:35,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-12 11:15:36,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 11:15:36,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:15:36,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:36,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-07-12 11:15:36,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:36,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:36,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313498593] [2022-07-12 11:15:36,208 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:36,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522083255] [2022-07-12 11:15:36,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522083255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:36,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:36,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:15:36,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371746309] [2022-07-12 11:15:36,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:36,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:15:36,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:36,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:15:36,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:15:36,210 INFO L87 Difference]: Start difference. First operand 422 states and 599 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-12 11:15:36,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:36,450 INFO L93 Difference]: Finished difference Result 880 states and 1287 transitions. [2022-07-12 11:15:36,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:36,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 312 [2022-07-12 11:15:36,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:36,453 INFO L225 Difference]: With dead ends: 880 [2022-07-12 11:15:36,453 INFO L226 Difference]: Without dead ends: 494 [2022-07-12 11:15:36,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:15:36,456 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 21 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:36,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2247 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:15:36,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-07-12 11:15:36,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 438. [2022-07-12 11:15:36,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 286 states have (on average 1.2447552447552448) internal successors, (356), 289 states have internal predecessors, (356), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-12 11:15:36,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 619 transitions. [2022-07-12 11:15:36,473 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 619 transitions. Word has length 312 [2022-07-12 11:15:36,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:36,473 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 619 transitions. [2022-07-12 11:15:36,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-12 11:15:36,473 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 619 transitions. [2022-07-12 11:15:36,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-12 11:15:36,475 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:36,475 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 11:15:36,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:36,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:36,691 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:36,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash 293720926, now seen corresponding path program 1 times [2022-07-12 11:15:36,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:36,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500589196] [2022-07-12 11:15:36,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:36,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:36,744 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:36,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166324695] [2022-07-12 11:15:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:36,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:36,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:36,746 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:36,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-12 11:15:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:37,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 3879 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 11:15:37,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-07-12 11:15:37,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:37,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:37,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500589196] [2022-07-12 11:15:37,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:37,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166324695] [2022-07-12 11:15:37,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166324695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:37,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:37,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:15:37,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214353997] [2022-07-12 11:15:37,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:37,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:15:37,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:37,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:15:37,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:15:37,445 INFO L87 Difference]: Start difference. First operand 438 states and 619 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 11:15:37,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:37,471 INFO L93 Difference]: Finished difference Result 856 states and 1235 transitions. [2022-07-12 11:15:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:15:37,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 342 [2022-07-12 11:15:37,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:37,474 INFO L225 Difference]: With dead ends: 856 [2022-07-12 11:15:37,474 INFO L226 Difference]: Without dead ends: 454 [2022-07-12 11:15:37,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:15:37,477 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 3 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:37,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1444 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:37,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-07-12 11:15:37,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 446. [2022-07-12 11:15:37,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 294 states have (on average 1.2380952380952381) internal successors, (364), 297 states have internal predecessors, (364), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-12 11:15:37,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 627 transitions. [2022-07-12 11:15:37,491 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 627 transitions. Word has length 342 [2022-07-12 11:15:37,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:37,491 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 627 transitions. [2022-07-12 11:15:37,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 11:15:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 627 transitions. [2022-07-12 11:15:37,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-12 11:15:37,493 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:37,494 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 11:15:37,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:37,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:37,707 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:37,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:37,708 INFO L85 PathProgramCache]: Analyzing trace with hash 696410342, now seen corresponding path program 1 times [2022-07-12 11:15:37,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:37,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962432245] [2022-07-12 11:15:37,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:37,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:37,767 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:37,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963404134] [2022-07-12 11:15:37,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:37,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:37,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:37,768 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:37,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-12 11:15:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:38,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 3859 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 11:15:38,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:38,509 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-07-12 11:15:38,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:38,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:38,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962432245] [2022-07-12 11:15:38,510 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:38,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963404134] [2022-07-12 11:15:38,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963404134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:38,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:38,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:15:38,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96605188] [2022-07-12 11:15:38,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:38,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:15:38,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:38,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:15:38,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:15:38,512 INFO L87 Difference]: Start difference. First operand 446 states and 627 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-12 11:15:38,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:38,653 INFO L93 Difference]: Finished difference Result 848 states and 1207 transitions. [2022-07-12 11:15:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 11:15:38,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 342 [2022-07-12 11:15:38,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:38,657 INFO L225 Difference]: With dead ends: 848 [2022-07-12 11:15:38,657 INFO L226 Difference]: Without dead ends: 481 [2022-07-12 11:15:38,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:15:38,659 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 77 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:38,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2510 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:15:38,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-07-12 11:15:38,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 442. [2022-07-12 11:15:38,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 290 states have (on average 1.2344827586206897) internal successors, (358), 293 states have internal predecessors, (358), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-12 11:15:38,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 621 transitions. [2022-07-12 11:15:38,680 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 621 transitions. Word has length 342 [2022-07-12 11:15:38,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:38,680 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 621 transitions. [2022-07-12 11:15:38,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-12 11:15:38,681 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 621 transitions. [2022-07-12 11:15:38,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-12 11:15:38,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:38,683 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:15:38,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:38,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-12 11:15:38,903 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:38,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:38,904 INFO L85 PathProgramCache]: Analyzing trace with hash -634741136, now seen corresponding path program 1 times [2022-07-12 11:15:38,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:38,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811048487] [2022-07-12 11:15:38,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:38,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:38,969 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:38,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79300271] [2022-07-12 11:15:38,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:38,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:38,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:38,972 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:38,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-12 11:15:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:39,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 3641 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 11:15:39,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 360 proven. 3 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-07-12 11:15:39,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:15:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-07-12 11:15:40,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:40,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811048487] [2022-07-12 11:15:40,106 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:40,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79300271] [2022-07-12 11:15:40,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79300271] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:15:40,107 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 11:15:40,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-07-12 11:15:40,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179789769] [2022-07-12 11:15:40,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 11:15:40,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-12 11:15:40,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:40,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-12 11:15:40,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-12 11:15:40,108 INFO L87 Difference]: Start difference. First operand 442 states and 621 transitions. Second operand has 16 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) [2022-07-12 11:15:40,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:40,474 INFO L93 Difference]: Finished difference Result 781 states and 1102 transitions. [2022-07-12 11:15:40,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:40,475 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) Word has length 317 [2022-07-12 11:15:40,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:40,479 INFO L225 Difference]: With dead ends: 781 [2022-07-12 11:15:40,479 INFO L226 Difference]: Without dead ends: 450 [2022-07-12 11:15:40,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-07-12 11:15:40,481 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 259 mSDsluCounter, 3192 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:40,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 3634 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:40,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-07-12 11:15:40,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 420. [2022-07-12 11:15:40,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 270 states have (on average 1.2296296296296296) internal successors, (332), 273 states have internal predecessors, (332), 121 states have call successors, (121), 25 states have call predecessors, (121), 27 states have return successors, (136), 121 states have call predecessors, (136), 119 states have call successors, (136) [2022-07-12 11:15:40,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 589 transitions. [2022-07-12 11:15:40,497 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 589 transitions. Word has length 317 [2022-07-12 11:15:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:40,498 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 589 transitions. [2022-07-12 11:15:40,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) [2022-07-12 11:15:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 589 transitions. [2022-07-12 11:15:40,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-12 11:15:40,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:40,500 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:15:40,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:40,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-12 11:15:40,711 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:40,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:40,712 INFO L85 PathProgramCache]: Analyzing trace with hash 2117085201, now seen corresponding path program 1 times [2022-07-12 11:15:40,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:40,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458910620] [2022-07-12 11:15:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:40,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:40,758 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:40,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [280399440] [2022-07-12 11:15:40,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:40,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:40,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:40,760 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:40,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-12 11:15:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:41,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 3782 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-12 11:15:41,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:41,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-07-12 11:15:41,695 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2022-07-12 11:15:41,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:41,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:41,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458910620] [2022-07-12 11:15:41,695 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:41,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280399440] [2022-07-12 11:15:41,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280399440] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:41,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:41,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 11:15:41,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503326967] [2022-07-12 11:15:41,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:41,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 11:15:41,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:41,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 11:15:41,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:15:41,698 INFO L87 Difference]: Start difference. First operand 420 states and 589 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-07-12 11:15:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:42,296 INFO L93 Difference]: Finished difference Result 853 states and 1235 transitions. [2022-07-12 11:15:42,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:42,296 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 332 [2022-07-12 11:15:42,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:42,307 INFO L225 Difference]: With dead ends: 853 [2022-07-12 11:15:42,307 INFO L226 Difference]: Without dead ends: 465 [2022-07-12 11:15:42,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-07-12 11:15:42,309 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 104 mSDsluCounter, 3321 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:42,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 3779 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 11:15:42,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-07-12 11:15:42,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 443. [2022-07-12 11:15:42,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 292 states have (on average 1.2328767123287672) internal successors, (360), 294 states have internal predecessors, (360), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-12 11:15:42,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 630 transitions. [2022-07-12 11:15:42,324 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 630 transitions. Word has length 332 [2022-07-12 11:15:42,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:42,324 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 630 transitions. [2022-07-12 11:15:42,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-07-12 11:15:42,325 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 630 transitions. [2022-07-12 11:15:42,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-12 11:15:42,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:42,327 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:15:42,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:42,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:42,542 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:42,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:42,543 INFO L85 PathProgramCache]: Analyzing trace with hash -201858609, now seen corresponding path program 1 times [2022-07-12 11:15:42,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:42,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460800399] [2022-07-12 11:15:42,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:42,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:42,597 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:42,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818873842] [2022-07-12 11:15:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:42,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:42,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:42,599 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:42,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-12 11:15:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:43,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 3791 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-12 11:15:43,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:43,306 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-07-12 11:15:43,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:43,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:43,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460800399] [2022-07-12 11:15:43,307 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:43,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818873842] [2022-07-12 11:15:43,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818873842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:43,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:43,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:15:43,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500169959] [2022-07-12 11:15:43,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:43,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:15:43,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:43,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:15:43,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:15:43,308 INFO L87 Difference]: Start difference. First operand 443 states and 630 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 11:15:43,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:43,346 INFO L93 Difference]: Finished difference Result 896 states and 1304 transitions. [2022-07-12 11:15:43,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:15:43,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 332 [2022-07-12 11:15:43,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:43,349 INFO L225 Difference]: With dead ends: 896 [2022-07-12 11:15:43,349 INFO L226 Difference]: Without dead ends: 489 [2022-07-12 11:15:43,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:15:43,352 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 8 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:43,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1976 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:43,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-07-12 11:15:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 471. [2022-07-12 11:15:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 320 states have (on average 1.23125) internal successors, (394), 322 states have internal predecessors, (394), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-12 11:15:43,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 664 transitions. [2022-07-12 11:15:43,368 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 664 transitions. Word has length 332 [2022-07-12 11:15:43,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:43,368 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 664 transitions. [2022-07-12 11:15:43,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 11:15:43,369 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 664 transitions. [2022-07-12 11:15:43,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-12 11:15:43,370 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:43,371 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:15:43,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:43,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:43,587 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:43,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:43,588 INFO L85 PathProgramCache]: Analyzing trace with hash -313018033, now seen corresponding path program 1 times [2022-07-12 11:15:43,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:43,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839566647] [2022-07-12 11:15:43,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:43,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:43,654 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:43,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726759021] [2022-07-12 11:15:43,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:43,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:43,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:43,656 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:43,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-12 11:15:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:44,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 3797 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 11:15:44,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:44,352 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-07-12 11:15:44,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:44,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:44,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839566647] [2022-07-12 11:15:44,352 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:44,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726759021] [2022-07-12 11:15:44,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726759021] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:44,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:44,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:15:44,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852273383] [2022-07-12 11:15:44,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:44,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:15:44,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:44,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:15:44,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:15:44,355 INFO L87 Difference]: Start difference. First operand 471 states and 664 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 11:15:44,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:44,383 INFO L93 Difference]: Finished difference Result 895 states and 1284 transitions. [2022-07-12 11:15:44,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:15:44,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 332 [2022-07-12 11:15:44,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:44,387 INFO L225 Difference]: With dead ends: 895 [2022-07-12 11:15:44,387 INFO L226 Difference]: Without dead ends: 460 [2022-07-12 11:15:44,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:15:44,389 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 2 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:44,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1435 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:44,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-07-12 11:15:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 451. [2022-07-12 11:15:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 300 states have (on average 1.21) internal successors, (363), 302 states have internal predecessors, (363), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-12 11:15:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 633 transitions. [2022-07-12 11:15:44,406 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 633 transitions. Word has length 332 [2022-07-12 11:15:44,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:44,406 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 633 transitions. [2022-07-12 11:15:44,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 11:15:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 633 transitions. [2022-07-12 11:15:44,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-12 11:15:44,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:44,412 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:15:44,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:44,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-12 11:15:44,624 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:44,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:44,624 INFO L85 PathProgramCache]: Analyzing trace with hash -12708465, now seen corresponding path program 1 times [2022-07-12 11:15:44,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:44,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219476239] [2022-07-12 11:15:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:44,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:44,675 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:44,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877541584] [2022-07-12 11:15:44,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:44,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:44,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:44,677 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:44,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-12 11:15:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:45,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 11:15:45,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:45,327 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2022-07-12 11:15:45,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:45,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:45,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219476239] [2022-07-12 11:15:45,327 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:45,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877541584] [2022-07-12 11:15:45,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877541584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:45,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:45,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:15:45,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28848341] [2022-07-12 11:15:45,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:45,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:15:45,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:45,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:15:45,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:15:45,330 INFO L87 Difference]: Start difference. First operand 451 states and 633 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 11:15:45,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:45,356 INFO L93 Difference]: Finished difference Result 866 states and 1261 transitions. [2022-07-12 11:15:45,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:15:45,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 332 [2022-07-12 11:15:45,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:45,360 INFO L225 Difference]: With dead ends: 866 [2022-07-12 11:15:45,360 INFO L226 Difference]: Without dead ends: 451 [2022-07-12 11:15:45,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:15:45,363 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 7 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:45,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1438 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:45,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-07-12 11:15:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2022-07-12 11:15:45,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 300 states have (on average 1.2066666666666668) internal successors, (362), 302 states have internal predecessors, (362), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-12 11:15:45,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 632 transitions. [2022-07-12 11:15:45,378 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 632 transitions. Word has length 332 [2022-07-12 11:15:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:45,378 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 632 transitions. [2022-07-12 11:15:45,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 11:15:45,379 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 632 transitions. [2022-07-12 11:15:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-07-12 11:15:45,380 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:45,381 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:15:45,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:45,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-12 11:15:45,595 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:45,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:45,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1623540425, now seen corresponding path program 1 times [2022-07-12 11:15:45,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:45,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408329139] [2022-07-12 11:15:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:45,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:45,643 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:45,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442424500] [2022-07-12 11:15:45,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:45,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:45,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:45,645 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:45,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-12 11:15:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:46,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 3782 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 11:15:46,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:46,419 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2022-07-12 11:15:46,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:46,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:46,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408329139] [2022-07-12 11:15:46,419 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:46,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442424500] [2022-07-12 11:15:46,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442424500] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:46,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:46,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:15:46,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672897196] [2022-07-12 11:15:46,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:46,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:15:46,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:46,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:15:46,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:15:46,421 INFO L87 Difference]: Start difference. First operand 451 states and 632 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 11:15:46,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:46,604 INFO L93 Difference]: Finished difference Result 866 states and 1259 transitions. [2022-07-12 11:15:46,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:15:46,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 338 [2022-07-12 11:15:46,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:46,607 INFO L225 Difference]: With dead ends: 866 [2022-07-12 11:15:46,607 INFO L226 Difference]: Without dead ends: 451 [2022-07-12 11:15:46,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:15:46,610 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 7 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:46,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1848 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:15:46,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-07-12 11:15:46,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2022-07-12 11:15:46,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 300 states have (on average 1.2033333333333334) internal successors, (361), 302 states have internal predecessors, (361), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-12 11:15:46,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 631 transitions. [2022-07-12 11:15:46,627 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 631 transitions. Word has length 338 [2022-07-12 11:15:46,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:46,627 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 631 transitions. [2022-07-12 11:15:46,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 11:15:46,628 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 631 transitions. [2022-07-12 11:15:46,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-07-12 11:15:46,629 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:46,630 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:15:46,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-07-12 11:15:46,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-12 11:15:46,839 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:46,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1177846795, now seen corresponding path program 1 times [2022-07-12 11:15:46,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:46,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648215251] [2022-07-12 11:15:46,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:46,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:46,889 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:46,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526828466] [2022-07-12 11:15:46,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:46,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:46,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:46,890 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:46,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-07-12 11:15:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:47,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 3797 conjuncts, 85 conjunts are in the unsatisfiable core [2022-07-12 11:15:47,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:48,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2022-07-12 11:15:48,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-07-12 11:15:48,350 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-12 11:15:48,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:48,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:48,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648215251] [2022-07-12 11:15:48,350 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:48,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526828466] [2022-07-12 11:15:48,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526828466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:48,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:48,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-12 11:15:48,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081556679] [2022-07-12 11:15:48,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:48,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 11:15:48,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:48,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 11:15:48,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-12 11:15:48,352 INFO L87 Difference]: Start difference. First operand 451 states and 631 transitions. Second operand has 17 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-07-12 11:15:49,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:49,224 INFO L93 Difference]: Finished difference Result 937 states and 1327 transitions. [2022-07-12 11:15:49,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 11:15:49,225 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) Word has length 338 [2022-07-12 11:15:49,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:49,228 INFO L225 Difference]: With dead ends: 937 [2022-07-12 11:15:49,228 INFO L226 Difference]: Without dead ends: 548 [2022-07-12 11:15:49,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2022-07-12 11:15:49,230 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 165 mSDsluCounter, 4910 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:49,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 5356 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1003 Invalid, 0 Unknown, 108 Unchecked, 0.6s Time] [2022-07-12 11:15:49,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-07-12 11:15:49,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 484. [2022-07-12 11:15:49,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 327 states have (on average 1.1957186544342508) internal successors, (391), 329 states have internal predecessors, (391), 124 states have call successors, (124), 26 states have call predecessors, (124), 31 states have return successors, (175), 128 states have call predecessors, (175), 122 states have call successors, (175) [2022-07-12 11:15:49,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 690 transitions. [2022-07-12 11:15:49,256 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 690 transitions. Word has length 338 [2022-07-12 11:15:49,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:49,256 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 690 transitions. [2022-07-12 11:15:49,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-07-12 11:15:49,256 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 690 transitions. [2022-07-12 11:15:49,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-07-12 11:15:49,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:49,258 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:15:49,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:49,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-12 11:15:49,479 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:49,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:49,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1243371206, now seen corresponding path program 1 times [2022-07-12 11:15:49,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:49,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336321827] [2022-07-12 11:15:49,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:49,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:49,527 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:49,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1485979472] [2022-07-12 11:15:49,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:49,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:49,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:49,529 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:49,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-07-12 11:15:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:50,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 3799 conjuncts, 255 conjunts are in the unsatisfiable core [2022-07-12 11:15:50,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:50,617 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5208 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5208) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_5207 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5207))))) is different from true [2022-07-12 11:15:50,639 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5208 (Array Int Int)) (v_ArrVal_5207 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5207)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5208) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-12 11:15:50,680 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-12 11:15:50,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-07-12 11:15:50,692 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-12 11:15:50,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-07-12 11:15:50,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-12 11:15:50,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-12 11:15:50,860 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5209 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5209))) (exists ((v_ArrVal_5210 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5210) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-12 11:15:51,216 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5211 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211))) (exists ((v_ArrVal_5212 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-12 11:15:51,229 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5211 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5212 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212) |c_#memory_$Pointer$.base|))) is different from true [2022-07-12 11:15:51,268 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5211 (Array Int Int)) (v_ArrVal_5210 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5212 (Array Int Int)) (v_ArrVal_5209 (Array Int Int))) (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| v_ArrVal_5209)) (.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse2 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| v_ArrVal_5210))) (and (= |c_#memory_$Pointer$.base| (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212)) (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (select (select .cse2 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (store .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-12 11:15:51,405 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-12 11:15:51,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-07-12 11:15:51,430 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-12 11:15:51,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-07-12 11:15:51,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-12 11:15:51,475 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-12 11:15:51,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-12 11:15:51,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-12 11:15:51,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-12 11:15:51,564 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5214 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5214))) (exists ((v_ArrVal_5213 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5213) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-12 11:15:51,729 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (exists ((v_ArrVal_5215 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215))) (exists ((v_ArrVal_5217 Int)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-12 11:15:51,744 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5217 Int) (v_ArrVal_5215 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-12 11:15:51,786 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5210 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5217 Int) (v_ArrVal_5215 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (v_ArrVal_5209 (Array Int Int))) (let ((.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse0 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| v_ArrVal_5209)) (.cse2 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| v_ArrVal_5210))) (and (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (select (select .cse2 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215) |c_#memory_$Pointer$.base|) (= (store .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-12 11:15:51,977 INFO L356 Elim1Store]: treesize reduction 90, result has 30.2 percent of original size [2022-07-12 11:15:51,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 118 [2022-07-12 11:15:52,005 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-12 11:15:52,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-07-12 11:15:52,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-12 11:15:52,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-12 11:15:52,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-12 11:15:52,132 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-07-12 11:15:52,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 57 [2022-07-12 11:15:52,160 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-07-12 11:15:52,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 57 [2022-07-12 11:15:52,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:52,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336321827] [2022-07-12 11:15:52,288 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:52,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485979472] [2022-07-12 11:15:52,288 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-12 11:15:52,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:52,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-12 11:15:52,499 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:611) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:529) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyEliminationToAtom(QuantifierPusher.java:299) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:269) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:257) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:154) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:346) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:269) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 11:15:52,501 INFO L158 Benchmark]: Toolchain (without parser) took 42574.39ms. Allocated memory was 104.9MB in the beginning and 677.4MB in the end (delta: 572.5MB). Free memory was 65.3MB in the beginning and 324.2MB in the end (delta: -258.9MB). Peak memory consumption was 312.5MB. Max. memory is 16.1GB. [2022-07-12 11:15:52,501 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:15:52,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1463.70ms. Allocated memory was 104.9MB in the beginning and 146.8MB in the end (delta: 41.9MB). Free memory was 65.1MB in the beginning and 59.0MB in the end (delta: 6.0MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2022-07-12 11:15:52,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 155.24ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 59.0MB in the beginning and 163.7MB in the end (delta: -104.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-07-12 11:15:52,502 INFO L158 Benchmark]: Boogie Preprocessor took 87.52ms. Allocated memory is still 218.1MB. Free memory was 163.7MB in the beginning and 155.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 11:15:52,503 INFO L158 Benchmark]: RCFGBuilder took 1217.02ms. Allocated memory is still 218.1MB. Free memory was 155.3MB in the beginning and 103.6MB in the end (delta: 51.7MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2022-07-12 11:15:52,503 INFO L158 Benchmark]: TraceAbstraction took 39643.84ms. Allocated memory was 218.1MB in the beginning and 677.4MB in the end (delta: 459.3MB). Free memory was 102.6MB in the beginning and 324.2MB in the end (delta: -221.6MB). Peak memory consumption was 237.8MB. Max. memory is 16.1GB. [2022-07-12 11:15:52,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1463.70ms. Allocated memory was 104.9MB in the beginning and 146.8MB in the end (delta: 41.9MB). Free memory was 65.1MB in the beginning and 59.0MB in the end (delta: 6.0MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 155.24ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 59.0MB in the beginning and 163.7MB in the end (delta: -104.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.52ms. Allocated memory is still 218.1MB. Free memory was 163.7MB in the beginning and 155.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1217.02ms. Allocated memory is still 218.1MB. Free memory was 155.3MB in the beginning and 103.6MB in the end (delta: 51.7MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * TraceAbstraction took 39643.84ms. Allocated memory was 218.1MB in the beginning and 677.4MB in the end (delta: 459.3MB). Free memory was 102.6MB in the beginning and 324.2MB in the end (delta: -221.6MB). Peak memory consumption was 237.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-12 11:15:52,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_priority_queue_s_sift_either_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 11:15:54,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:15:54,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:15:54,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:15:54,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:15:54,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:15:54,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:15:54,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:15:54,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:15:54,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:15:54,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:15:54,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:15:54,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:15:54,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:15:54,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:15:54,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:15:54,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:15:54,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:15:54,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:15:54,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:15:54,340 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:15:54,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:15:54,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:15:54,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:15:54,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:15:54,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:15:54,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:15:54,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:15:54,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:15:54,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:15:54,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:15:54,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:15:54,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:15:54,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:15:54,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:15:54,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:15:54,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:15:54,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:15:54,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:15:54,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:15:54,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:15:54,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:15:54,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 11:15:54,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:15:54,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:15:54,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:15:54,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:15:54,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:15:54,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:15:54,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:15:54,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:15:54,388 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:15:54,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:15:54,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:15:54,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:15:54,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:15:54,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:15:54,389 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 11:15:54,389 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 11:15:54,389 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 11:15:54,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:15:54,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:15:54,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:15:54,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:15:54,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:15:54,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:15:54,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:15:54,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:15:54,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:15:54,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:15:54,391 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 11:15:54,391 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 11:15:54,391 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:15:54,391 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:15:54,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:15:54,391 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 11:15:54,391 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2022-07-12 11:15:54,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:15:54,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:15:54,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:15:54,676 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:15:54,676 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:15:54,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-07-12 11:15:54,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/785e66685/ebc9ebd22c404fbb8df92116e8f42e89/FLAG4f4a14268 [2022-07-12 11:15:55,359 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:15:55,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-07-12 11:15:55,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/785e66685/ebc9ebd22c404fbb8df92116e8f42e89/FLAG4f4a14268 [2022-07-12 11:15:55,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/785e66685/ebc9ebd22c404fbb8df92116e8f42e89 [2022-07-12 11:15:55,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:15:55,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:15:55,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:15:55,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:15:55,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:15:55,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:15:55" (1/1) ... [2022-07-12 11:15:55,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d07abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:55, skipping insertion in model container [2022-07-12 11:15:55,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:15:55" (1/1) ... [2022-07-12 11:15:55,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:15:55,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:15:55,848 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_priority_queue_s_sift_either_harness.i[4506,4519] [2022-07-12 11:15:55,853 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_priority_queue_s_sift_either_harness.i[4566,4579] [2022-07-12 11:15:56,366 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,367 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,367 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,368 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,369 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,386 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,387 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,389 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,389 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,391 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,391 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,392 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,392 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:56,595 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:15:56,596 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:15:56,596 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:15:56,597 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:15:56,597 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:15:56,598 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:15:56,598 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:15:56,598 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:15:56,599 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:15:56,599 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:15:56,680 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:15:56,712 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.ArithmeticException: BigInteger out of int range at java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1009) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2978) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2836) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2138) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 11:15:56,717 INFO L158 Benchmark]: Toolchain (without parser) took 1161.70ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 39.2MB in the beginning and 45.7MB in the end (delta: -6.5MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2022-07-12 11:15:56,717 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 48.2MB. Free memory was 30.6MB in the beginning and 30.5MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:15:56,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1159.19ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 38.9MB in the beginning and 45.7MB in the end (delta: -6.8MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2022-07-12 11:15:56,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 48.2MB. Free memory was 30.6MB in the beginning and 30.5MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1159.19ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 38.9MB in the beginning and 45.7MB in the end (delta: -6.8MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: ArithmeticException: BigInteger out of int range: java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range