./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_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 66d360c8c29bda7e5219dac4b14837aec8d465009822b05f671b68702d836670 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:58:50,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:58:50,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:58:50,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:58:50,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:58:50,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:58:50,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:58:50,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:58:50,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:58:50,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:58:50,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:58:50,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:58:50,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:58:50,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:58:50,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:58:50,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:58:50,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:58:50,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:58:50,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:58:50,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:58:50,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:58:50,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:58:50,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:58:50,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:58:50,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:58:50,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:58:50,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:58:50,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:58:50,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:58:50,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:58:50,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:58:50,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:58:50,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:58:50,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:58:50,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:58:50,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:58:50,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:58:50,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:58:50,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:58:50,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:58:50,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:58:50,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 12:58:51,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:58:51,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:58:51,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:58:51,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:58:51,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:58:51,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:58:51,030 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:58:51,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:58:51,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 12:58:51,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:58:51,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:58:51,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:58:51,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:58:51,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:58:51,032 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:58:51,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:58:51,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:58:51,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:58:51,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:58:51,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:58:51,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:58:51,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:58:51,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:58:51,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 12:58:51,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 12:58:51,034 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:58:51,034 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:58:51,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:58:51,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:58:51,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66d360c8c29bda7e5219dac4b14837aec8d465009822b05f671b68702d836670 [2021-11-05 12:58:51,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:58:51,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:58:51,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:58:51,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:58:51,392 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:58:51,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i [2021-11-05 12:58:51,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8141ac6c1/e5a52d9764d54cdeb8313cf700f92703/FLAG84400d537 [2021-11-05 12:58:52,053 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:58:52,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i [2021-11-05 12:58:52,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8141ac6c1/e5a52d9764d54cdeb8313cf700f92703/FLAG84400d537 [2021-11-05 12:58:52,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8141ac6c1/e5a52d9764d54cdeb8313cf700f92703 [2021-11-05 12:58:52,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:58:52,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:58:52,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:58:52,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:58:52,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:58:52,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:58:52" (1/1) ... [2021-11-05 12:58:52,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b169a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:52, skipping insertion in model container [2021-11-05 12:58:52,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:58:52" (1/1) ... [2021-11-05 12:58:52,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:58:52,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:58:52,534 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4491,4504] [2021-11-05 12:58:52,541 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4551,4564] [2021-11-05 12:58:52,559 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:58:52,567 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:58:53,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,107 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:58:53,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:58:53,381 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:58:53,381 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:58:53,382 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:58:53,383 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:58:53,383 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:58:53,383 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:58:53,384 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:58:53,384 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:58:53,482 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:58:53,716 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,717 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,779 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,780 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,783 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:58:53,857 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:58:53,874 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4491,4504] [2021-11-05 12:58:53,875 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4551,4564] [2021-11-05 12:58:53,877 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:58:53,878 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:58:53,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:53,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:58:53,941 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:58:53,941 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:58:53,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:58:53,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:58:53,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:58:53,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:58:53,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:58:53,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:58:53,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:58:53,961 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:58:54,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,039 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:58:54,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:58:54,311 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:58:54,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54 WrapperNode [2021-11-05 12:58:54,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:58:54,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:58:54,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:58:54,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:58:54,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (1/1) ... [2021-11-05 12:58:54,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (1/1) ... [2021-11-05 12:58:54,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:58:54,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:58:54,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:58:54,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:58:54,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (1/1) ... [2021-11-05 12:58:54,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (1/1) ... [2021-11-05 12:58:54,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (1/1) ... [2021-11-05 12:58:54,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (1/1) ... [2021-11-05 12:58:54,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (1/1) ... [2021-11-05 12:58:54,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (1/1) ... [2021-11-05 12:58:54,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (1/1) ... [2021-11-05 12:58:54,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:58:54,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:58:54,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:58:54,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:58:54,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (1/1) ... [2021-11-05 12:58:54,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:58:54,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:58:54,643 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) [2021-11-05 12:58:54,671 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 [2021-11-05 12:58:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-05 12:58:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 12:58:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:58:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 12:58:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:58:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:58:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-05 12:58:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:58:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-05 12:58:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 12:58:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 12:58:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 12:58:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:58:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 12:59:03,389 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##423: assume !true; [2021-11-05 12:59:03,389 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##287: assume !true; [2021-11-05 12:59:03,390 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##234: assume !true; [2021-11-05 12:59:03,390 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##313: assume !true; [2021-11-05 12:59:03,390 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##190: assume !true; [2021-11-05 12:59:03,390 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !true; [2021-11-05 12:59:03,390 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##396: assume !true; [2021-11-05 12:59:03,390 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##342: assume !true; [2021-11-05 12:59:03,397 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:59:03,397 INFO L299 CfgBuilder]: Removed 474 assume(true) statements. [2021-11-05 12:59:03,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:59:03 BoogieIcfgContainer [2021-11-05 12:59:03,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:59:03,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:59:03,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:59:03,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:59:03,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:58:52" (1/3) ... [2021-11-05 12:59:03,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f3ef9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:59:03, skipping insertion in model container [2021-11-05 12:59:03,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:58:54" (2/3) ... [2021-11-05 12:59:03,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f3ef9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:59:03, skipping insertion in model container [2021-11-05 12:59:03,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:59:03" (3/3) ... [2021-11-05 12:59:03,403 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_eq_harness.i [2021-11-05 12:59:03,406 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:59:03,407 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2021-11-05 12:59:03,435 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:59:03,440 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 [2021-11-05 12:59:03,440 INFO L340 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2021-11-05 12:59:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 513 states, 487 states have (on average 1.4209445585215605) internal successors, (692), 512 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:03,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-05 12:59:03,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:59:03,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:59:03,464 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 12:59:03,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:59:03,467 INFO L85 PathProgramCache]: Analyzing trace with hash 472998027, now seen corresponding path program 1 times [2021-11-05 12:59:03,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:59:03,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586551605] [2021-11-05 12:59:03,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:03,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:59:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:59:03,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:59:03,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:59:03,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586551605] [2021-11-05 12:59:03,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586551605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:59:03,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:59:03,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 12:59:03,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020962466] [2021-11-05 12:59:03,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:59:03,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:59:03,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:59:04,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:59:04,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:59:04,021 INFO L87 Difference]: Start difference. First operand has 513 states, 487 states have (on average 1.4209445585215605) internal successors, (692), 512 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:04,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:59:04,114 INFO L93 Difference]: Finished difference Result 1021 states and 1378 transitions. [2021-11-05 12:59:04,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:59:04,116 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-05 12:59:04,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:59:04,131 INFO L225 Difference]: With dead ends: 1021 [2021-11-05 12:59:04,131 INFO L226 Difference]: Without dead ends: 506 [2021-11-05 12:59:04,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:59:04,146 INFO L933 BasicCegarLoop]: 622 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.98ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:59:04,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 3.98ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:59:04,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-11-05 12:59:04,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-11-05 12:59:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 481 states have (on average 1.2806652806652807) internal successors, (616), 505 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:04,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 616 transitions. [2021-11-05 12:59:04,219 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 616 transitions. Word has length 117 [2021-11-05 12:59:04,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:59:04,219 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 616 transitions. [2021-11-05 12:59:04,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:04,219 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 616 transitions. [2021-11-05 12:59:04,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-05 12:59:04,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:59:04,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:59:04,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 12:59:04,229 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 12:59:04,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:59:04,231 INFO L85 PathProgramCache]: Analyzing trace with hash 550783055, now seen corresponding path program 1 times [2021-11-05 12:59:04,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:59:04,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592852618] [2021-11-05 12:59:04,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:04,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:59:04,348 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:59:04,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130971246] [2021-11-05 12:59:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:04,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:59:04,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:59:04,350 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) [2021-11-05 12:59:04,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 12:59:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:59:05,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 3011 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-05 12:59:05,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:59:05,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:59:05,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:59:05,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:59:05,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592852618] [2021-11-05 12:59:05,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:59:05,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130971246] [2021-11-05 12:59:05,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130971246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:59:05,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:59:05,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:59:05,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544087971] [2021-11-05 12:59:05,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:59:05,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:59:05,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:59:05,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:59:05,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:59:05,709 INFO L87 Difference]: Start difference. First operand 506 states and 616 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:06,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:59:06,072 INFO L93 Difference]: Finished difference Result 1472 states and 1794 transitions. [2021-11-05 12:59:06,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:59:06,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-05 12:59:06,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:59:06,076 INFO L225 Difference]: With dead ends: 1472 [2021-11-05 12:59:06,076 INFO L226 Difference]: Without dead ends: 988 [2021-11-05 12:59:06,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 108.75ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:59:06,078 INFO L933 BasicCegarLoop]: 1140 mSDtfsCounter, 1150 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 219.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 3473 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.19ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 249.07ms IncrementalHoareTripleChecker+Time [2021-11-05 12:59:06,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1150 Valid, 3473 Invalid, 85 Unknown, 0 Unchecked, 10.19ms Time], IncrementalHoareTripleChecker [20 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 249.07ms Time] [2021-11-05 12:59:06,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2021-11-05 12:59:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 518. [2021-11-05 12:59:06,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 493 states have (on average 1.2738336713995944) internal successors, (628), 517 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 628 transitions. [2021-11-05 12:59:06,094 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 628 transitions. Word has length 117 [2021-11-05 12:59:06,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:59:06,094 INFO L470 AbstractCegarLoop]: Abstraction has 518 states and 628 transitions. [2021-11-05 12:59:06,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:06,095 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 628 transitions. [2021-11-05 12:59:06,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-05 12:59:06,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:59:06,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:59:06,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 12:59:06,323 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 [2021-11-05 12:59:06,324 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 12:59:06,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:59:06,324 INFO L85 PathProgramCache]: Analyzing trace with hash -550582129, now seen corresponding path program 1 times [2021-11-05 12:59:06,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:59:06,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272059476] [2021-11-05 12:59:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:06,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:59:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:59:06,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:59:06,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:59:06,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272059476] [2021-11-05 12:59:06,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272059476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:59:06,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:59:06,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 12:59:06,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027139710] [2021-11-05 12:59:06,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:59:06,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:59:06,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:59:06,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:59:06,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:59:06,789 INFO L87 Difference]: Start difference. First operand 518 states and 628 transitions. Second operand has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:08,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:10,929 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:12,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:59:12,603 INFO L93 Difference]: Finished difference Result 1044 states and 1266 transitions. [2021-11-05 12:59:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-05 12:59:12,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-05 12:59:12,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:59:12,605 INFO L225 Difference]: With dead ends: 1044 [2021-11-05 12:59:12,605 INFO L226 Difference]: Without dead ends: 564 [2021-11-05 12:59:12,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 428.12ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:59:12,611 INFO L933 BasicCegarLoop]: 628 mSDtfsCounter, 317 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 26 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5130.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.45ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5461.46ms IncrementalHoareTripleChecker+Time [2021-11-05 12:59:12,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 3196 Invalid, 462 Unknown, 0 Unchecked, 9.45ms Time], IncrementalHoareTripleChecker [26 Valid, 434 Invalid, 2 Unknown, 0 Unchecked, 5461.46ms Time] [2021-11-05 12:59:12,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2021-11-05 12:59:12,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 520. [2021-11-05 12:59:12,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 495 states have (on average 1.2727272727272727) internal successors, (630), 519 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:12,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 630 transitions. [2021-11-05 12:59:12,620 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 630 transitions. Word has length 125 [2021-11-05 12:59:12,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:59:12,620 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 630 transitions. [2021-11-05 12:59:12,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:12,620 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 630 transitions. [2021-11-05 12:59:12,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-05 12:59:12,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:59:12,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:59:12,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 12:59:12,622 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 12:59:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:59:12,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1710991121, now seen corresponding path program 1 times [2021-11-05 12:59:12,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:59:12,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837046619] [2021-11-05 12:59:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:12,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:59:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:59:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:59:12,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:59:12,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837046619] [2021-11-05 12:59:12,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837046619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:59:12,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:59:12,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:59:12,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512296982] [2021-11-05 12:59:12,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:59:12,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:59:12,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:59:12,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:59:12,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:59:12,847 INFO L87 Difference]: Start difference. First operand 520 states and 630 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:13,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:59:13,142 INFO L93 Difference]: Finished difference Result 1003 states and 1217 transitions. [2021-11-05 12:59:13,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:59:13,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-05 12:59:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:59:13,144 INFO L225 Difference]: With dead ends: 1003 [2021-11-05 12:59:13,144 INFO L226 Difference]: Without dead ends: 518 [2021-11-05 12:59:13,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.68ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:59:13,145 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 583 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 248.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.30ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 271.89ms IncrementalHoareTripleChecker+Time [2021-11-05 12:59:13,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 1124 Invalid, 105 Unknown, 0 Unchecked, 2.30ms Time], IncrementalHoareTripleChecker [10 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 271.89ms Time] [2021-11-05 12:59:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-11-05 12:59:13,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2021-11-05 12:59:13,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 493 states have (on average 1.2636916835699796) internal successors, (623), 517 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:13,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 623 transitions. [2021-11-05 12:59:13,158 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 623 transitions. Word has length 125 [2021-11-05 12:59:13,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:59:13,159 INFO L470 AbstractCegarLoop]: Abstraction has 518 states and 623 transitions. [2021-11-05 12:59:13,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:13,159 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 623 transitions. [2021-11-05 12:59:13,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-05 12:59:13,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:59:13,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:59:13,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 12:59:13,163 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 12:59:13,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:59:13,163 INFO L85 PathProgramCache]: Analyzing trace with hash -595987094, now seen corresponding path program 1 times [2021-11-05 12:59:13,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:59:13,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561064380] [2021-11-05 12:59:13,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:13,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:59:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:59:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:59:13,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:59:13,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561064380] [2021-11-05 12:59:13,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561064380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:59:13,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:59:13,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:59:13,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390813918] [2021-11-05 12:59:13,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:59:13,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:59:13,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:59:13,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:59:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:59:13,479 INFO L87 Difference]: Start difference. First operand 518 states and 623 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:15,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:17,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:19,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:59:19,591 INFO L93 Difference]: Finished difference Result 1291 states and 1546 transitions. [2021-11-05 12:59:19,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:59:19,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-05 12:59:19,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:59:19,594 INFO L225 Difference]: With dead ends: 1291 [2021-11-05 12:59:19,594 INFO L226 Difference]: Without dead ends: 810 [2021-11-05 12:59:19,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 306.59ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:59:19,595 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 704 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 147 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5414.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.02ms SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5836.34ms IncrementalHoareTripleChecker+Time [2021-11-05 12:59:19,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 2204 Invalid, 584 Unknown, 0 Unchecked, 10.02ms Time], IncrementalHoareTripleChecker [147 Valid, 435 Invalid, 2 Unknown, 0 Unchecked, 5836.34ms Time] [2021-11-05 12:59:19,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2021-11-05 12:59:19,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 518. [2021-11-05 12:59:19,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 493 states have (on average 1.2271805273833671) internal successors, (605), 517 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:19,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 605 transitions. [2021-11-05 12:59:19,615 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 605 transitions. Word has length 127 [2021-11-05 12:59:19,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:59:19,616 INFO L470 AbstractCegarLoop]: Abstraction has 518 states and 605 transitions. [2021-11-05 12:59:19,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 605 transitions. [2021-11-05 12:59:19,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-05 12:59:19,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:59:19,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:59:19,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 12:59:19,617 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 12:59:19,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:59:19,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1912536357, now seen corresponding path program 1 times [2021-11-05 12:59:19,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:59:19,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913724668] [2021-11-05 12:59:19,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:19,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:59:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:59:20,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:59:20,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:59:20,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913724668] [2021-11-05 12:59:20,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913724668] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:59:20,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:59:20,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 12:59:20,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222578636] [2021-11-05 12:59:20,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:59:20,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:59:20,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:59:20,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:59:20,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:59:20,172 INFO L87 Difference]: Start difference. First operand 518 states and 605 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:22,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:24,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:26,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:59:26,600 INFO L93 Difference]: Finished difference Result 1242 states and 1454 transitions. [2021-11-05 12:59:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 12:59:26,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-05 12:59:26,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:59:26,605 INFO L225 Difference]: With dead ends: 1242 [2021-11-05 12:59:26,605 INFO L226 Difference]: Without dead ends: 828 [2021-11-05 12:59:26,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 520.84ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-11-05 12:59:26,606 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 1375 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 48 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5650.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.53ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6029.29ms IncrementalHoareTripleChecker+Time [2021-11-05 12:59:26,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 2531 Invalid, 611 Unknown, 0 Unchecked, 9.53ms Time], IncrementalHoareTripleChecker [48 Valid, 561 Invalid, 2 Unknown, 0 Unchecked, 6029.29ms Time] [2021-11-05 12:59:26,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2021-11-05 12:59:26,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 641. [2021-11-05 12:59:26,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 616 states have (on average 1.2256493506493507) internal successors, (755), 640 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:26,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 755 transitions. [2021-11-05 12:59:26,624 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 755 transitions. Word has length 128 [2021-11-05 12:59:26,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:59:26,624 INFO L470 AbstractCegarLoop]: Abstraction has 641 states and 755 transitions. [2021-11-05 12:59:26,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:26,625 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 755 transitions. [2021-11-05 12:59:26,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-05 12:59:26,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:59:26,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:59:26,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 12:59:26,626 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 12:59:26,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:59:26,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1570667547, now seen corresponding path program 1 times [2021-11-05 12:59:26,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:59:26,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938892339] [2021-11-05 12:59:26,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:26,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:59:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:59:26,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:59:26,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:59:26,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938892339] [2021-11-05 12:59:26,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938892339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:59:26,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:59:26,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:59:26,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500572119] [2021-11-05 12:59:26,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:59:26,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:59:26,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:59:26,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:59:26,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:59:26,861 INFO L87 Difference]: Start difference. First operand 641 states and 755 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:27,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:59:27,186 INFO L93 Difference]: Finished difference Result 1177 states and 1389 transitions. [2021-11-05 12:59:27,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:59:27,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-05 12:59:27,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:59:27,189 INFO L225 Difference]: With dead ends: 1177 [2021-11-05 12:59:27,189 INFO L226 Difference]: Without dead ends: 637 [2021-11-05 12:59:27,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.34ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:59:27,190 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 494 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 275.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.96ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 296.28ms IncrementalHoareTripleChecker+Time [2021-11-05 12:59:27,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 1151 Invalid, 101 Unknown, 0 Unchecked, 1.96ms Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 296.28ms Time] [2021-11-05 12:59:27,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-11-05 12:59:27,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2021-11-05 12:59:27,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 612 states have (on average 1.2156862745098038) internal successors, (744), 636 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:27,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 744 transitions. [2021-11-05 12:59:27,207 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 744 transitions. Word has length 128 [2021-11-05 12:59:27,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:59:27,207 INFO L470 AbstractCegarLoop]: Abstraction has 637 states and 744 transitions. [2021-11-05 12:59:27,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:27,208 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 744 transitions. [2021-11-05 12:59:27,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-05 12:59:27,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:59:27,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:59:27,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 12:59:27,209 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 12:59:27,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:59:27,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1723642064, now seen corresponding path program 1 times [2021-11-05 12:59:27,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:59:27,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163140278] [2021-11-05 12:59:27,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:27,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:59:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:59:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:59:27,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:59:27,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163140278] [2021-11-05 12:59:27,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163140278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:59:27,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:59:27,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-05 12:59:27,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375304519] [2021-11-05 12:59:27,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:59:27,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 12:59:27,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:59:27,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 12:59:27,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:59:27,904 INFO L87 Difference]: Start difference. First operand 637 states and 744 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:29,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:32,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:34,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:36,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:38,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:48,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:59:48,223 INFO L93 Difference]: Finished difference Result 2270 states and 2652 transitions. [2021-11-05 12:59:48,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-05 12:59:48,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-05 12:59:48,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:59:48,229 INFO L225 Difference]: With dead ends: 2270 [2021-11-05 12:59:48,229 INFO L226 Difference]: Without dead ends: 1852 [2021-11-05 12:59:48,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3797.86ms TimeCoverageRelationStatistics Valid=315, Invalid=875, Unknown=0, NotChecked=0, Total=1190 [2021-11-05 12:59:48,238 INFO L933 BasicCegarLoop]: 818 mSDtfsCounter, 3915 mSDsluCounter, 4675 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 239 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15383.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 5493 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.03ms SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16641.30ms IncrementalHoareTripleChecker+Time [2021-11-05 12:59:48,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3915 Valid, 5493 Invalid, 2143 Unknown, 0 Unchecked, 27.03ms Time], IncrementalHoareTripleChecker [239 Valid, 1899 Invalid, 5 Unknown, 0 Unchecked, 16641.30ms Time] [2021-11-05 12:59:48,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2021-11-05 12:59:48,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 785. [2021-11-05 12:59:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 760 states have (on average 1.2328947368421053) internal successors, (937), 784 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 937 transitions. [2021-11-05 12:59:48,320 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 937 transitions. Word has length 134 [2021-11-05 12:59:48,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:59:48,320 INFO L470 AbstractCegarLoop]: Abstraction has 785 states and 937 transitions. [2021-11-05 12:59:48,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:48,321 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 937 transitions. [2021-11-05 12:59:48,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-05 12:59:48,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:59:48,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:59:48,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 12:59:48,322 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 12:59:48,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:59:48,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1504787346, now seen corresponding path program 1 times [2021-11-05 12:59:48,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:59:48,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221151053] [2021-11-05 12:59:48,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:48,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:59:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:59:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:59:48,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:59:48,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221151053] [2021-11-05 12:59:48,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221151053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:59:48,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:59:48,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:59:48,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889103347] [2021-11-05 12:59:48,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:59:48,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:59:48,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:59:48,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:59:48,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:59:48,740 INFO L87 Difference]: Start difference. First operand 785 states and 937 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:49,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:59:49,228 INFO L93 Difference]: Finished difference Result 1328 states and 1594 transitions. [2021-11-05 12:59:49,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:59:49,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-05 12:59:49,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:59:49,231 INFO L225 Difference]: With dead ends: 1328 [2021-11-05 12:59:49,231 INFO L226 Difference]: Without dead ends: 756 [2021-11-05 12:59:49,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 233.98ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-05 12:59:49,232 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 1860 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 308.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.95ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 334.02ms IncrementalHoareTripleChecker+Time [2021-11-05 12:59:49,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1860 Valid, 1354 Invalid, 151 Unknown, 0 Unchecked, 2.95ms Time], IncrementalHoareTripleChecker [47 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 334.02ms Time] [2021-11-05 12:59:49,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2021-11-05 12:59:49,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 756. [2021-11-05 12:59:49,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 731 states have (on average 1.2106703146374829) internal successors, (885), 755 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:49,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 885 transitions. [2021-11-05 12:59:49,253 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 885 transitions. Word has length 134 [2021-11-05 12:59:49,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:59:49,254 INFO L470 AbstractCegarLoop]: Abstraction has 756 states and 885 transitions. [2021-11-05 12:59:49,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:49,254 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 885 transitions. [2021-11-05 12:59:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-05 12:59:49,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:59:49,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:59:49,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 12:59:49,255 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 12:59:49,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:59:49,256 INFO L85 PathProgramCache]: Analyzing trace with hash 217886608, now seen corresponding path program 1 times [2021-11-05 12:59:49,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:59:49,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389971004] [2021-11-05 12:59:49,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:59:49,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:59:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:59:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:59:51,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:59:51,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389971004] [2021-11-05 12:59:51,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389971004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:59:51,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:59:51,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-05 12:59:51,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854085724] [2021-11-05 12:59:51,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:59:51,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-05 12:59:51,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:59:51,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-05 12:59:51,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-05 12:59:51,075 INFO L87 Difference]: Start difference. First operand 756 states and 885 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:59:53,111 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:55,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:57,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:59:59,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:00:01,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:00:07,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:00:07,196 INFO L93 Difference]: Finished difference Result 1556 states and 1816 transitions. [2021-11-05 13:00:07,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-05 13:00:07,197 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-05 13:00:07,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:00:07,201 INFO L225 Difference]: With dead ends: 1556 [2021-11-05 13:00:07,201 INFO L226 Difference]: Without dead ends: 1039 [2021-11-05 13:00:07,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1426.12ms TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2021-11-05 13:00:07,203 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 1153 mSDsluCounter, 4603 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 65 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13707.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 5384 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.23ms SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14937.35ms IncrementalHoareTripleChecker+Time [2021-11-05 13:00:07,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 5384 Invalid, 1206 Unknown, 0 Unchecked, 16.23ms Time], IncrementalHoareTripleChecker [65 Valid, 1136 Invalid, 5 Unknown, 0 Unchecked, 14937.35ms Time] [2021-11-05 13:00:07,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2021-11-05 13:00:07,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 759. [2021-11-05 13:00:07,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 734 states have (on average 1.2098092643051772) internal successors, (888), 758 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:07,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 888 transitions. [2021-11-05 13:00:07,230 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 888 transitions. Word has length 134 [2021-11-05 13:00:07,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:00:07,230 INFO L470 AbstractCegarLoop]: Abstraction has 759 states and 888 transitions. [2021-11-05 13:00:07,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:07,231 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 888 transitions. [2021-11-05 13:00:07,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-05 13:00:07,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:00:07,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:00:07,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 13:00:07,232 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 13:00:07,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:00:07,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1780835856, now seen corresponding path program 1 times [2021-11-05 13:00:07,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:00:07,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198855901] [2021-11-05 13:00:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:00:07,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:00:07,313 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:00:07,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556295643] [2021-11-05 13:00:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:00:07,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:00:07,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:00:07,336 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) [2021-11-05 13:00:07,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 13:00:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:00:08,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 3202 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-05 13:00:08,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:00:08,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:00:08,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:00:08,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:00:08,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198855901] [2021-11-05 13:00:08,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:00:08,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556295643] [2021-11-05 13:00:08,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556295643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:00:08,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:00:08,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:00:08,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012071011] [2021-11-05 13:00:08,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:00:08,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:00:08,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:00:08,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:00:08,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:00:08,517 INFO L87 Difference]: Start difference. First operand 759 states and 888 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:08,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:00:08,874 INFO L93 Difference]: Finished difference Result 2211 states and 2586 transitions. [2021-11-05 13:00:08,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:00:08,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-05 13:00:08,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:00:08,878 INFO L225 Difference]: With dead ends: 2211 [2021-11-05 13:00:08,878 INFO L226 Difference]: Without dead ends: 1477 [2021-11-05 13:00:08,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 94.78ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:00:08,879 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 1066 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 249.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.16ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 264.58ms IncrementalHoareTripleChecker+Time [2021-11-05 13:00:08,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1066 Valid, 2519 Invalid, 85 Unknown, 0 Unchecked, 2.16ms Time], IncrementalHoareTripleChecker [20 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 264.58ms Time] [2021-11-05 13:00:08,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2021-11-05 13:00:08,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 771. [2021-11-05 13:00:08,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 746 states have (on average 1.2064343163538873) internal successors, (900), 770 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:08,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 900 transitions. [2021-11-05 13:00:08,908 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 900 transitions. Word has length 134 [2021-11-05 13:00:08,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:00:08,908 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 900 transitions. [2021-11-05 13:00:08,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:08,908 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 900 transitions. [2021-11-05 13:00:08,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-05 13:00:08,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:00:08,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:00:08,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-05 13:00:09,131 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,SelfDestructingSolverStorable10 [2021-11-05 13:00:09,131 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 13:00:09,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:00:09,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1299755598, now seen corresponding path program 1 times [2021-11-05 13:00:09,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:00:09,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949273573] [2021-11-05 13:00:09,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:00:09,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:00:09,212 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:00:09,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1354940619] [2021-11-05 13:00:09,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:00:09,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:00:09,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:00:09,230 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) [2021-11-05 13:00:09,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 13:00:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:00:09,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 3203 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-05 13:00:09,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:00:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:00:10,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:00:10,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:00:10,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949273573] [2021-11-05 13:00:10,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:00:10,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354940619] [2021-11-05 13:00:10,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354940619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:00:10,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:00:10,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:00:10,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559308433] [2021-11-05 13:00:10,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:00:10,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:00:10,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:00:10,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:00:10,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:00:10,313 INFO L87 Difference]: Start difference. First operand 771 states and 900 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:11,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:00:11,309 INFO L93 Difference]: Finished difference Result 1461 states and 1704 transitions. [2021-11-05 13:00:11,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:00:11,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-05 13:00:11,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:00:11,313 INFO L225 Difference]: With dead ends: 1461 [2021-11-05 13:00:11,313 INFO L226 Difference]: Without dead ends: 855 [2021-11-05 13:00:11,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.53ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:00:11,315 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 109 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 841.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.16ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 918.56ms IncrementalHoareTripleChecker+Time [2021-11-05 13:00:11,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 2104 Invalid, 316 Unknown, 0 Unchecked, 3.16ms Time], IncrementalHoareTripleChecker [32 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 918.56ms Time] [2021-11-05 13:00:11,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2021-11-05 13:00:11,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 677. [2021-11-05 13:00:11,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 652 states have (on average 1.2070552147239264) internal successors, (787), 676 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 787 transitions. [2021-11-05 13:00:11,405 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 787 transitions. Word has length 134 [2021-11-05 13:00:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:00:11,408 INFO L470 AbstractCegarLoop]: Abstraction has 677 states and 787 transitions. [2021-11-05 13:00:11,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:11,408 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 787 transitions. [2021-11-05 13:00:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-05 13:00:11,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:00:11,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:00:11,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-05 13:00:11,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:00:11,623 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 13:00:11,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:00:11,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2015297100, now seen corresponding path program 1 times [2021-11-05 13:00:11,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:00:11,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317035367] [2021-11-05 13:00:11,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:00:11,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:00:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:00:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:00:12,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:00:12,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317035367] [2021-11-05 13:00:12,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317035367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:00:12,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:00:12,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 13:00:12,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667091481] [2021-11-05 13:00:12,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:00:12,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 13:00:12,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:00:12,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 13:00:12,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:00:12,487 INFO L87 Difference]: Start difference. First operand 677 states and 787 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:14,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:00:16,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:00:18,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:00:22,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:00:22,994 INFO L93 Difference]: Finished difference Result 1194 states and 1364 transitions. [2021-11-05 13:00:22,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-05 13:00:22,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-05 13:00:22,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:00:22,998 INFO L225 Difference]: With dead ends: 1194 [2021-11-05 13:00:22,998 INFO L226 Difference]: Without dead ends: 1129 [2021-11-05 13:00:22,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1367.02ms TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-11-05 13:00:22,999 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 816 mSDsluCounter, 3066 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 56 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8703.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 3654 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.45ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9336.71ms IncrementalHoareTripleChecker+Time [2021-11-05 13:00:22,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 3654 Invalid, 959 Unknown, 0 Unchecked, 11.45ms Time], IncrementalHoareTripleChecker [56 Valid, 900 Invalid, 3 Unknown, 0 Unchecked, 9336.71ms Time] [2021-11-05 13:00:23,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2021-11-05 13:00:23,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 681. [2021-11-05 13:00:23,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 656 states have (on average 1.2057926829268293) internal successors, (791), 680 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:23,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 791 transitions. [2021-11-05 13:00:23,028 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 791 transitions. Word has length 143 [2021-11-05 13:00:23,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:00:23,029 INFO L470 AbstractCegarLoop]: Abstraction has 681 states and 791 transitions. [2021-11-05 13:00:23,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:23,029 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 791 transitions. [2021-11-05 13:00:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-05 13:00:23,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:00:23,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:00:23,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 13:00:23,030 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 13:00:23,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:00:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1335238730, now seen corresponding path program 1 times [2021-11-05 13:00:23,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:00:23,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53292786] [2021-11-05 13:00:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:00:23,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:00:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:00:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:00:23,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:00:23,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53292786] [2021-11-05 13:00:23,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53292786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:00:23,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:00:23,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 13:00:23,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236977417] [2021-11-05 13:00:23,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:00:23,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 13:00:23,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:00:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 13:00:23,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:00:23,509 INFO L87 Difference]: Start difference. First operand 681 states and 791 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:24,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:00:24,004 INFO L93 Difference]: Finished difference Result 861 states and 994 transitions. [2021-11-05 13:00:24,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 13:00:24,006 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-05 13:00:24,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:00:24,008 INFO L225 Difference]: With dead ends: 861 [2021-11-05 13:00:24,008 INFO L226 Difference]: Without dead ends: 671 [2021-11-05 13:00:24,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 242.56ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-05 13:00:24,024 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1965 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 305.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.70ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 331.12ms IncrementalHoareTripleChecker+Time [2021-11-05 13:00:24,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1965 Valid, 1201 Invalid, 135 Unknown, 0 Unchecked, 2.70ms Time], IncrementalHoareTripleChecker [39 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 331.12ms Time] [2021-11-05 13:00:24,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2021-11-05 13:00:24,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2021-11-05 13:00:24,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 646 states have (on average 1.1888544891640866) internal successors, (768), 670 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:24,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 768 transitions. [2021-11-05 13:00:24,060 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 768 transitions. Word has length 143 [2021-11-05 13:00:24,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:00:24,060 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 768 transitions. [2021-11-05 13:00:24,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:24,060 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 768 transitions. [2021-11-05 13:00:24,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-05 13:00:24,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:00:24,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:00:24,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 13:00:24,061 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 13:00:24,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:00:24,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1420026888, now seen corresponding path program 1 times [2021-11-05 13:00:24,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:00:24,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643367141] [2021-11-05 13:00:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:00:24,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:00:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:00:27,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:00:27,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:00:27,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643367141] [2021-11-05 13:00:27,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643367141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:00:27,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:00:27,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:00:27,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902386017] [2021-11-05 13:00:27,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:00:27,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:00:27,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:00:27,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:00:27,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:00:27,469 INFO L87 Difference]: Start difference. First operand 671 states and 768 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:27,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:00:27,816 INFO L93 Difference]: Finished difference Result 1320 states and 1510 transitions. [2021-11-05 13:00:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:00:27,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2021-11-05 13:00:27,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:00:27,818 INFO L225 Difference]: With dead ends: 1320 [2021-11-05 13:00:27,818 INFO L226 Difference]: Without dead ends: 671 [2021-11-05 13:00:27,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.88ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:00:27,820 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 4 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 242.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.29ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 269.34ms IncrementalHoareTripleChecker+Time [2021-11-05 13:00:27,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1626 Invalid, 95 Unknown, 0 Unchecked, 1.29ms Time], IncrementalHoareTripleChecker [13 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 269.34ms Time] [2021-11-05 13:00:27,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2021-11-05 13:00:27,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 647. [2021-11-05 13:00:27,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 622 states have (on average 1.1832797427652733) internal successors, (736), 646 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:27,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 736 transitions. [2021-11-05 13:00:27,853 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 736 transitions. Word has length 146 [2021-11-05 13:00:27,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:00:27,853 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 736 transitions. [2021-11-05 13:00:27,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:00:27,854 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 736 transitions. [2021-11-05 13:00:27,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-05 13:00:27,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:00:27,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:00:27,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 13:00:27,855 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-05 13:00:27,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:00:27,855 INFO L85 PathProgramCache]: Analyzing trace with hash 161407208, now seen corresponding path program 1 times [2021-11-05 13:00:27,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:00:27,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668136664] [2021-11-05 13:00:27,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:00:27,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:00:27,907 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:00:27,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1203870802] [2021-11-05 13:00:27,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:00:27,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:00:27,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:00:27,909 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) [2021-11-05 13:00:27,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process Killed by 15