./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_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 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:21:44,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:21:44,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:21:44,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:21:44,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:21:44,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:21:44,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:21:44,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:21:44,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:21:44,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:21:44,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:21:44,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:21:44,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:21:44,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:21:44,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:21:44,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:21:44,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:21:44,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:21:44,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:21:44,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:21:44,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:21:44,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:21:44,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:21:44,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:21:44,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:21:44,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:21:44,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:21:44,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:21:44,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:21:44,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:21:44,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:21:44,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:21:44,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:21:44,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:21:44,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:21:44,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:21:44,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:21:44,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:21:44,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:21:44,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:21:44,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:21:44,682 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:21:44,718 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:21:44,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:21:44,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:21:44,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:21:44,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:21:44,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:21:44,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:21:44,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:21:44,723 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:21:44,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:21:44,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:21:44,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:21:44,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:21:44,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:21:44,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:21:44,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:21:44,725 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:21:44,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:21:44,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:21:44,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:21:44,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:21:44,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:21:44,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:21:44,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:21:44,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:21:44,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:21:44,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:21:44,727 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:21:44,727 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:21:44,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:21:44,727 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2021-12-28 03:21:45,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:21:45,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:21:45,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:21:45,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:21:45,045 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:21:45,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-12-28 03:21:45,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfa18a196/1943e6e08c5e49a4914e9d61f27f07de/FLAG700ec2b52 [2021-12-28 03:21:45,970 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:21:45,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-12-28 03:21:46,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfa18a196/1943e6e08c5e49a4914e9d61f27f07de/FLAG700ec2b52 [2021-12-28 03:21:46,026 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfa18a196/1943e6e08c5e49a4914e9d61f27f07de [2021-12-28 03:21:46,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:21:46,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:21:46,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:21:46,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:21:46,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:21:46,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:21:46" (1/1) ... [2021-12-28 03:21:46,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1004cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:46, skipping insertion in model container [2021-12-28 03:21:46,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:21:46" (1/1) ... [2021-12-28 03:21:46,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:21:46,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:21:46,400 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_remove_harness.i[4499,4512] [2021-12-28 03:21:46,415 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_remove_harness.i[4559,4572] [2021-12-28 03:21:47,256 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,258 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,259 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,260 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,261 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,278 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,281 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,283 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,285 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,288 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,289 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,290 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,290 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,561 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-28 03:21:47,562 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-28 03:21:47,563 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-28 03:21:47,564 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-28 03:21:47,565 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-28 03:21:47,565 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-28 03:21:47,566 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-28 03:21:47,566 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-28 03:21:47,566 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-28 03:21:47,567 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-28 03:21:47,698 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-28 03:21:47,724 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,728 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,779 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,780 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,780 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,780 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,781 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,781 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,781 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,782 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,782 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,782 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,783 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,783 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,783 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,786 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,787 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,787 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,787 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,790 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,790 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,795 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,796 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,796 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,816 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,816 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,817 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:21:47,842 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:21:47,853 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_remove_harness.i[4499,4512] [2021-12-28 03:21:47,854 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_remove_harness.i[4559,4572] [2021-12-28 03:21:47,880 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,882 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,887 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,887 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,888 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,888 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,889 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,890 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,890 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,890 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,930 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-28 03:21:47,931 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-28 03:21:47,932 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-28 03:21:47,933 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-28 03:21:47,934 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-28 03:21:47,934 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-28 03:21:47,935 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-28 03:21:47,935 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-28 03:21:47,936 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-28 03:21:47,936 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-28 03:21:47,964 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-28 03:21:47,976 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:47,980 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,002 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,002 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,003 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,003 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,003 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,004 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,004 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,005 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,005 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,005 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,006 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,006 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,006 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,007 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,007 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,008 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,008 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,010 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,011 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,015 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,016 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,016 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,020 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,021 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,022 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:21:48,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:21:48,308 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:21:48,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48 WrapperNode [2021-12-28 03:21:48,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:21:48,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:21:48,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:21:48,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:21:48,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (1/1) ... [2021-12-28 03:21:48,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (1/1) ... [2021-12-28 03:21:48,530 INFO L137 Inliner]: procedures = 697, calls = 1921, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1060 [2021-12-28 03:21:48,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:21:48,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:21:48,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:21:48,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:21:48,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (1/1) ... [2021-12-28 03:21:48,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (1/1) ... [2021-12-28 03:21:48,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (1/1) ... [2021-12-28 03:21:48,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (1/1) ... [2021-12-28 03:21:48,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (1/1) ... [2021-12-28 03:21:48,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (1/1) ... [2021-12-28 03:21:48,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (1/1) ... [2021-12-28 03:21:48,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:21:48,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:21:48,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:21:48,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:21:48,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (1/1) ... [2021-12-28 03:21:48,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:21:48,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:21:48,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 03:21:48,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 03:21:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2021-12-28 03:21:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2021-12-28 03:21:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-12-28 03:21:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-12-28 03:21:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:21:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-12-28 03:21:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-12-28 03:21:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-12-28 03:21:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-12-28 03:21:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-28 03:21:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-28 03:21:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2021-12-28 03:21:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2021-12-28 03:21:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:21:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:21:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-28 03:21:48,714 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-28 03:21:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-28 03:21:48,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-28 03:21:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2021-12-28 03:21:48,715 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2021-12-28 03:21:48,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:21:48,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:21:48,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:21:48,716 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2021-12-28 03:21:48,721 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2021-12-28 03:21:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-28 03:21:48,721 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-28 03:21:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:21:48,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:21:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-28 03:21:48,722 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-28 03:21:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-28 03:21:48,722 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-28 03:21:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:21:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-12-28 03:21:48,722 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-12-28 03:21:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-12-28 03:21:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-12-28 03:21:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-12-28 03:21:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-12-28 03:21:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 03:21:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 03:21:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:21:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:21:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-28 03:21:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-28 03:21:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2021-12-28 03:21:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2021-12-28 03:21:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:21:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:21:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:21:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2021-12-28 03:21:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2021-12-28 03:21:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-28 03:21:48,725 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-28 03:21:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-28 03:21:48,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-28 03:21:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:21:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-12-28 03:21:48,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-12-28 03:21:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2021-12-28 03:21:48,726 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2021-12-28 03:21:48,726 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:21:48,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:21:48,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:21:48,726 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2021-12-28 03:21:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2021-12-28 03:21:49,127 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:21:49,131 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:21:51,115 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:21:51,125 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:21:51,125 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-12-28 03:21:51,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:21:51 BoogieIcfgContainer [2021-12-28 03:21:51,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:21:51,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:21:51,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:21:51,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:21:51,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:21:46" (1/3) ... [2021-12-28 03:21:51,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34db630e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:21:51, skipping insertion in model container [2021-12-28 03:21:51,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:21:48" (2/3) ... [2021-12-28 03:21:51,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34db630e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:21:51, skipping insertion in model container [2021-12-28 03:21:51,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:21:51" (3/3) ... [2021-12-28 03:21:51,134 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2021-12-28 03:21:51,138 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:21:51,138 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-28 03:21:51,178 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:21:51,184 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 03:21:51,184 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-28 03:21:51,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 460 states, 270 states have (on average 1.2703703703703704) internal successors, (343), 275 states have internal predecessors, (343), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2021-12-28 03:21:51,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-28 03:21:51,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:21:51,219 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2021-12-28 03:21:51,220 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:21:51,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:21:51,224 INFO L85 PathProgramCache]: Analyzing trace with hash 207530193, now seen corresponding path program 1 times [2021-12-28 03:21:51,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:21:51,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732073624] [2021-12-28 03:21:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:21:51,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:21:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:51,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:21:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:21:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:51,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 03:21:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:51,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:21:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:21:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:51,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 03:21:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:51,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 03:21:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:51,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:21:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 03:21:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 03:21:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 03:21:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 03:21:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:21:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 03:21:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:21:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 03:21:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 03:21:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 03:21:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 03:21:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 03:21:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 03:21:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 03:21:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:52,188 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-12-28 03:21:52,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:21:52,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732073624] [2021-12-28 03:21:52,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732073624] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:21:52,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:21:52,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:21:52,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659930319] [2021-12-28 03:21:52,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:21:52,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:21:52,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:21:52,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:21:52,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:21:52,222 INFO L87 Difference]: Start difference. First operand has 460 states, 270 states have (on average 1.2703703703703704) internal successors, (343), 275 states have internal predecessors, (343), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 03:21:54,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:21:54,487 INFO L93 Difference]: Finished difference Result 1349 states and 2508 transitions. [2021-12-28 03:21:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:21:54,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2021-12-28 03:21:54,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:21:54,510 INFO L225 Difference]: With dead ends: 1349 [2021-12-28 03:21:54,510 INFO L226 Difference]: Without dead ends: 895 [2021-12-28 03:21:54,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:21:54,530 INFO L933 BasicCegarLoop]: 840 mSDtfsCounter, 535 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 714 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:21:54,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [651 Valid, 1522 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [714 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-28 03:21:54,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2021-12-28 03:21:54,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 453. [2021-12-28 03:21:54,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 265 states have (on average 1.2339622641509433) internal successors, (327), 268 states have internal predecessors, (327), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2021-12-28 03:21:54,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 645 transitions. [2021-12-28 03:21:54,677 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 645 transitions. Word has length 141 [2021-12-28 03:21:54,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:21:54,678 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 645 transitions. [2021-12-28 03:21:54,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 03:21:54,678 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 645 transitions. [2021-12-28 03:21:54,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-28 03:21:54,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:21:54,682 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 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] [2021-12-28 03:21:54,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:21:54,683 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:21:54,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:21:54,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1080700984, now seen corresponding path program 1 times [2021-12-28 03:21:54,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:21:54,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894837837] [2021-12-28 03:21:54,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:21:54,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:21:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:54,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:21:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:54,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:21:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:54,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 03:21:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:54,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:21:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:54,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:21:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:54,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 03:21:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:54,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 03:21:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:54,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:21:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:54,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 03:21:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 03:21:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 03:21:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 03:21:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:21:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 03:21:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:21:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 03:21:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 03:21:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 03:21:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 03:21:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 03:21:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 03:21:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 03:21:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 03:21:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 03:21:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 03:21:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-28 03:21:55,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:21:55,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894837837] [2021-12-28 03:21:55,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894837837] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:21:55,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362688795] [2021-12-28 03:21:55,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:21:55,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:21:55,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:21:55,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:21:55,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 03:21:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:55,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-28 03:21:55,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:21:56,162 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-28 03:21:56,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:21:56,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362688795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:21:56,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:21:56,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2021-12-28 03:21:56,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383916301] [2021-12-28 03:21:56,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:21:56,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:21:56,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:21:56,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:21:56,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-28 03:21:56,167 INFO L87 Difference]: Start difference. First operand 453 states and 645 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-28 03:21:57,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:21:57,024 INFO L93 Difference]: Finished difference Result 872 states and 1259 transitions. [2021-12-28 03:21:57,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:21:57,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 156 [2021-12-28 03:21:57,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:21:57,029 INFO L225 Difference]: With dead ends: 872 [2021-12-28 03:21:57,030 INFO L226 Difference]: Without dead ends: 455 [2021-12-28 03:21:57,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-12-28 03:21:57,034 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 665 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 2237 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 03:21:57,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 2237 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 03:21:57,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2021-12-28 03:21:57,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2021-12-28 03:21:57,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 266 states have (on average 1.2330827067669172) internal successors, (328), 270 states have internal predecessors, (328), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2021-12-28 03:21:57,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 659 transitions. [2021-12-28 03:21:57,089 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 659 transitions. Word has length 156 [2021-12-28 03:21:57,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:21:57,091 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 659 transitions. [2021-12-28 03:21:57,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-28 03:21:57,091 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 659 transitions. [2021-12-28 03:21:57,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-28 03:21:57,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:21:57,098 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:21:57,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 03:21:57,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:21:57,304 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:21:57,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:21:57,304 INFO L85 PathProgramCache]: Analyzing trace with hash 651465952, now seen corresponding path program 1 times [2021-12-28 03:21:57,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:21:57,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243899711] [2021-12-28 03:21:57,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:21:57,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:21:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:21:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:21:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 03:21:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:21:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:21:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 03:21:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 03:21:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:21:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 03:21:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 03:21:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:21:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 03:21:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 03:21:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:21:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 03:21:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:21:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 03:21:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 03:21:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 03:21:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 03:21:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 03:21:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 03:21:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 03:21:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-28 03:21:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 03:21:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 03:21:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-28 03:21:57,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:21:57,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243899711] [2021-12-28 03:21:57,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243899711] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:21:57,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911620867] [2021-12-28 03:21:57,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:21:57,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:21:57,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:21:57,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:21:57,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 03:21:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:21:58,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 03:21:58,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:21:58,774 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-28 03:21:58,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:21:58,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911620867] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:21:58,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:21:58,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2021-12-28 03:21:58,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055267642] [2021-12-28 03:21:58,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:21:58,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 03:21:58,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:21:58,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 03:21:58,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-12-28 03:21:58,777 INFO L87 Difference]: Start difference. First operand 455 states and 659 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-28 03:22:01,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:22:01,310 INFO L93 Difference]: Finished difference Result 895 states and 1330 transitions. [2021-12-28 03:22:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 03:22:01,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 164 [2021-12-28 03:22:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:22:01,315 INFO L225 Difference]: With dead ends: 895 [2021-12-28 03:22:01,316 INFO L226 Difference]: Without dead ends: 476 [2021-12-28 03:22:01,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-12-28 03:22:01,323 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 691 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-28 03:22:01,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 3303 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-28 03:22:01,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-12-28 03:22:01,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 474. [2021-12-28 03:22:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 282 states have (on average 1.2411347517730495) internal successors, (350), 286 states have internal predecessors, (350), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2021-12-28 03:22:01,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 702 transitions. [2021-12-28 03:22:01,357 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 702 transitions. Word has length 164 [2021-12-28 03:22:01,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:22:01,359 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 702 transitions. [2021-12-28 03:22:01,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-28 03:22:01,359 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 702 transitions. [2021-12-28 03:22:01,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-28 03:22:01,361 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:22:01,362 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:22:01,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 03:22:01,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-28 03:22:01,580 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:22:01,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:22:01,580 INFO L85 PathProgramCache]: Analyzing trace with hash 706817890, now seen corresponding path program 1 times [2021-12-28 03:22:01,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:22:01,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694461356] [2021-12-28 03:22:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:01,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:22:01,657 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 03:22:01,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401227409] [2021-12-28 03:22:01,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:01,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:01,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:22:01,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:22:01,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 03:22:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:22:02,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 03:22:02,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:22:02,606 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-28 03:22:02,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:22:02,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:22:02,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694461356] [2021-12-28 03:22:02,607 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-28 03:22:02,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401227409] [2021-12-28 03:22:02,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401227409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:22:02,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:22:02,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 03:22:02,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605893206] [2021-12-28 03:22:02,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:22:02,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 03:22:02,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:22:02,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 03:22:02,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:22:02,609 INFO L87 Difference]: Start difference. First operand 474 states and 702 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-28 03:22:04,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:22:04,423 INFO L93 Difference]: Finished difference Result 920 states and 1403 transitions. [2021-12-28 03:22:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 03:22:04,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 179 [2021-12-28 03:22:04,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:22:04,428 INFO L225 Difference]: With dead ends: 920 [2021-12-28 03:22:04,428 INFO L226 Difference]: Without dead ends: 482 [2021-12-28 03:22:04,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-12-28 03:22:04,433 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 689 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-28 03:22:04,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [711 Valid, 2763 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-28 03:22:04,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-12-28 03:22:04,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 474. [2021-12-28 03:22:04,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 282 states have (on average 1.2411347517730495) internal successors, (350), 286 states have internal predecessors, (350), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2021-12-28 03:22:04,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 702 transitions. [2021-12-28 03:22:04,459 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 702 transitions. Word has length 179 [2021-12-28 03:22:04,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:22:04,459 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 702 transitions. [2021-12-28 03:22:04,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-28 03:22:04,460 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 702 transitions. [2021-12-28 03:22:04,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-28 03:22:04,462 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:22:04,462 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:22:04,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 03:22:04,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:04,677 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:22:04,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:22:04,678 INFO L85 PathProgramCache]: Analyzing trace with hash -548515061, now seen corresponding path program 1 times [2021-12-28 03:22:04,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:22:04,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928850254] [2021-12-28 03:22:04,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:04,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:22:04,755 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 03:22:04,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111873732] [2021-12-28 03:22:04,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:04,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:04,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:22:04,757 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:22:04,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 03:22:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:22:05,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-28 03:22:05,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:22:05,676 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-12-28 03:22:05,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:22:05,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:22:05,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928850254] [2021-12-28 03:22:05,677 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-28 03:22:05,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111873732] [2021-12-28 03:22:05,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111873732] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:22:05,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:22:05,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 03:22:05,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237073210] [2021-12-28 03:22:05,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:22:05,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 03:22:05,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:22:05,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 03:22:05,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 03:22:05,679 INFO L87 Difference]: Start difference. First operand 474 states and 702 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2021-12-28 03:22:09,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:22:09,422 INFO L93 Difference]: Finished difference Result 930 states and 1407 transitions. [2021-12-28 03:22:09,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 03:22:09,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 195 [2021-12-28 03:22:09,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:22:09,427 INFO L225 Difference]: With dead ends: 930 [2021-12-28 03:22:09,427 INFO L226 Difference]: Without dead ends: 492 [2021-12-28 03:22:09,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-12-28 03:22:09,431 INFO L933 BasicCegarLoop]: 554 mSDtfsCounter, 754 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-28 03:22:09,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 3726 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-28 03:22:09,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-12-28 03:22:09,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 474. [2021-12-28 03:22:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 282 states have (on average 1.2411347517730495) internal successors, (350), 286 states have internal predecessors, (350), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2021-12-28 03:22:09,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 702 transitions. [2021-12-28 03:22:09,456 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 702 transitions. Word has length 195 [2021-12-28 03:22:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:22:09,456 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 702 transitions. [2021-12-28 03:22:09,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2021-12-28 03:22:09,457 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 702 transitions. [2021-12-28 03:22:09,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-12-28 03:22:09,459 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:22:09,459 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:22:09,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 03:22:09,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:09,671 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:22:09,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:22:09,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2018600789, now seen corresponding path program 2 times [2021-12-28 03:22:09,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:22:09,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270654506] [2021-12-28 03:22:09,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:09,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:22:09,746 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 03:22:09,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102182637] [2021-12-28 03:22:09,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 03:22:09,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:09,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:22:09,749 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:22:09,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 03:22:10,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 03:22:10,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:22:10,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 2905 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 03:22:10,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:22:10,846 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-12-28 03:22:10,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:22:10,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:22:10,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270654506] [2021-12-28 03:22:10,847 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-28 03:22:10,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102182637] [2021-12-28 03:22:10,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102182637] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:22:10,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:22:10,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 03:22:10,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536056808] [2021-12-28 03:22:10,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:22:10,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 03:22:10,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:22:10,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 03:22:10,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:22:10,850 INFO L87 Difference]: Start difference. First operand 474 states and 702 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-28 03:22:13,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:22:13,101 INFO L93 Difference]: Finished difference Result 878 states and 1321 transitions. [2021-12-28 03:22:13,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:22:13,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 210 [2021-12-28 03:22:13,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:22:13,106 INFO L225 Difference]: With dead ends: 878 [2021-12-28 03:22:13,106 INFO L226 Difference]: Without dead ends: 476 [2021-12-28 03:22:13,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-12-28 03:22:13,109 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 682 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-28 03:22:13,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 2791 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-28 03:22:13,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-12-28 03:22:13,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2021-12-28 03:22:13,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 283 states have (on average 1.2402826855123674) internal successors, (351), 288 states have internal predecessors, (351), 162 states have call successors, (162), 27 states have call predecessors, (162), 29 states have return successors, (201), 161 states have call predecessors, (201), 160 states have call successors, (201) [2021-12-28 03:22:13,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 714 transitions. [2021-12-28 03:22:13,134 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 714 transitions. Word has length 210 [2021-12-28 03:22:13,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:22:13,134 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 714 transitions. [2021-12-28 03:22:13,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-28 03:22:13,135 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 714 transitions. [2021-12-28 03:22:13,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-12-28 03:22:13,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:22:13,138 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:22:13,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-28 03:22:13,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:13,360 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:22:13,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:22:13,360 INFO L85 PathProgramCache]: Analyzing trace with hash -914550263, now seen corresponding path program 1 times [2021-12-28 03:22:13,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:22:13,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840233050] [2021-12-28 03:22:13,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:13,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:22:13,439 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 03:22:13,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1837654002] [2021-12-28 03:22:13,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:13,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:13,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:22:13,441 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:22:13,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 03:22:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:22:14,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-28 03:22:14,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:22:14,408 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-12-28 03:22:14,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:22:14,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:22:14,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840233050] [2021-12-28 03:22:14,409 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-28 03:22:14,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837654002] [2021-12-28 03:22:14,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837654002] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:22:14,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:22:14,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 03:22:14,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838327054] [2021-12-28 03:22:14,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:22:14,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 03:22:14,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:22:14,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 03:22:14,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 03:22:14,411 INFO L87 Difference]: Start difference. First operand 476 states and 714 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2021-12-28 03:22:16,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:22:16,527 INFO L93 Difference]: Finished difference Result 883 states and 1346 transitions. [2021-12-28 03:22:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:22:16,528 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 233 [2021-12-28 03:22:16,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:22:16,532 INFO L225 Difference]: With dead ends: 883 [2021-12-28 03:22:16,532 INFO L226 Difference]: Without dead ends: 479 [2021-12-28 03:22:16,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-12-28 03:22:16,536 INFO L933 BasicCegarLoop]: 573 mSDtfsCounter, 706 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 3309 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:22:16,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [728 Valid, 3309 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-28 03:22:16,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2021-12-28 03:22:16,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 477. [2021-12-28 03:22:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 284 states have (on average 1.2394366197183098) internal successors, (352), 289 states have internal predecessors, (352), 162 states have call successors, (162), 27 states have call predecessors, (162), 29 states have return successors, (201), 161 states have call predecessors, (201), 160 states have call successors, (201) [2021-12-28 03:22:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 715 transitions. [2021-12-28 03:22:16,561 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 715 transitions. Word has length 233 [2021-12-28 03:22:16,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:22:16,562 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 715 transitions. [2021-12-28 03:22:16,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2021-12-28 03:22:16,562 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 715 transitions. [2021-12-28 03:22:16,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-12-28 03:22:16,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:22:16,565 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 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, 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] [2021-12-28 03:22:16,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 03:22:16,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:16,781 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:22:16,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:22:16,781 INFO L85 PathProgramCache]: Analyzing trace with hash -2024605444, now seen corresponding path program 1 times [2021-12-28 03:22:16,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:22:16,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925536043] [2021-12-28 03:22:16,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:16,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:22:16,857 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 03:22:16,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456932934] [2021-12-28 03:22:16,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:16,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:16,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:22:16,859 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:22:16,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-28 03:22:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:22:17,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-28 03:22:17,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:22:17,879 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 177 proven. 3 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-28 03:22:17,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:22:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-12-28 03:22:18,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:22:18,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925536043] [2021-12-28 03:22:18,453 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-28 03:22:18,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456932934] [2021-12-28 03:22:18,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456932934] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:22:18,454 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-28 03:22:18,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-12-28 03:22:18,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480139919] [2021-12-28 03:22:18,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-28 03:22:18,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-28 03:22:18,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:22:18,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-28 03:22:18,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-28 03:22:18,455 INFO L87 Difference]: Start difference. First operand 477 states and 715 transitions. Second operand has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 14 states have internal predecessors, (124), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) [2021-12-28 03:22:21,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:22:21,481 INFO L93 Difference]: Finished difference Result 901 states and 1380 transitions. [2021-12-28 03:22:21,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:22:21,482 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 14 states have internal predecessors, (124), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) Word has length 234 [2021-12-28 03:22:21,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:22:21,486 INFO L225 Difference]: With dead ends: 901 [2021-12-28 03:22:21,486 INFO L226 Difference]: Without dead ends: 496 [2021-12-28 03:22:21,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2021-12-28 03:22:21,489 INFO L933 BasicCegarLoop]: 558 mSDtfsCounter, 1170 mSDsluCounter, 3222 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 3780 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-28 03:22:21,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1220 Valid, 3780 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-28 03:22:21,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-12-28 03:22:21,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 490. [2021-12-28 03:22:21,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 296 states have (on average 1.2466216216216217) internal successors, (369), 300 states have internal predecessors, (369), 163 states have call successors, (163), 27 states have call predecessors, (163), 29 states have return successors, (202), 163 states have call predecessors, (202), 161 states have call successors, (202) [2021-12-28 03:22:21,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 734 transitions. [2021-12-28 03:22:21,513 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 734 transitions. Word has length 234 [2021-12-28 03:22:21,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:22:21,514 INFO L470 AbstractCegarLoop]: Abstraction has 490 states and 734 transitions. [2021-12-28 03:22:21,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 14 states have internal predecessors, (124), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) [2021-12-28 03:22:21,514 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 734 transitions. [2021-12-28 03:22:21,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-12-28 03:22:21,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:22:21,517 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 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, 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] [2021-12-28 03:22:21,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-28 03:22:21,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:21,724 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:22:21,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:22:21,724 INFO L85 PathProgramCache]: Analyzing trace with hash -729173346, now seen corresponding path program 2 times [2021-12-28 03:22:21,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:22:21,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096345950] [2021-12-28 03:22:21,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:21,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:22:21,812 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 03:22:21,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743125758] [2021-12-28 03:22:21,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 03:22:21,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:21,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:22:21,814 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:22:21,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-28 03:22:22,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 03:22:22,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:22:22,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 3309 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 03:22:22,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:22:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-12-28 03:22:23,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:22:23,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:22:23,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096345950] [2021-12-28 03:22:23,019 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-28 03:22:23,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743125758] [2021-12-28 03:22:23,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743125758] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:22:23,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:22:23,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 03:22:23,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155196305] [2021-12-28 03:22:23,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:22:23,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 03:22:23,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:22:23,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 03:22:23,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 03:22:23,022 INFO L87 Difference]: Start difference. First operand 490 states and 734 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-28 03:22:25,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:22:25,407 INFO L93 Difference]: Finished difference Result 912 states and 1378 transitions. [2021-12-28 03:22:25,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 03:22:25,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 264 [2021-12-28 03:22:25,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:22:25,413 INFO L225 Difference]: With dead ends: 912 [2021-12-28 03:22:25,413 INFO L226 Difference]: Without dead ends: 502 [2021-12-28 03:22:25,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-28 03:22:25,417 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 77 mSDsluCounter, 3500 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 4107 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:22:25,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 4107 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-28 03:22:25,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-12-28 03:22:25,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 502. [2021-12-28 03:22:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 302 states have (on average 1.2450331125827814) internal successors, (376), 306 states have internal predecessors, (376), 168 states have call successors, (168), 28 states have call predecessors, (168), 30 states have return successors, (207), 168 states have call predecessors, (207), 166 states have call successors, (207) [2021-12-28 03:22:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 751 transitions. [2021-12-28 03:22:25,440 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 751 transitions. Word has length 264 [2021-12-28 03:22:25,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:22:25,440 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 751 transitions. [2021-12-28 03:22:25,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-28 03:22:25,441 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 751 transitions. [2021-12-28 03:22:25,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-28 03:22:25,444 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:22:25,444 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:22:25,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-28 03:22:25,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-28 03:22:25,672 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:22:25,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:22:25,672 INFO L85 PathProgramCache]: Analyzing trace with hash 256824554, now seen corresponding path program 3 times [2021-12-28 03:22:25,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:22:25,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959349827] [2021-12-28 03:22:25,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:22:25,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:22:25,772 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 03:22:25,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968119941] [2021-12-28 03:22:25,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 03:22:25,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:22:25,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:22:25,774 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:22:25,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-28 03:22:27,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-28 03:22:27,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:22:27,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 2171 conjuncts, 161 conjunts are in the unsatisfiable core [2021-12-28 03:22:27,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:22:27,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-28 03:22:27,734 INFO L353 Elim1Store]: treesize reduction 64, result has 42.3 percent of original size [2021-12-28 03:22:27,735 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 59