./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39feee77bf576ea852c42114836a4ed3182237f56346991038306ebcfd74e257 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:58:32,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:58:32,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:58:32,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:58:32,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:58:32,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:58:32,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:58:32,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:58:32,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:58:32,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:58:32,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:58:32,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:58:32,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:58:32,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:58:32,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:58:32,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:58:32,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:58:32,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:58:32,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:58:32,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:58:32,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:58:32,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:58:32,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:58:32,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:58:32,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:58:32,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:58:32,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:58:32,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:58:32,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:58:32,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:58:32,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:58:32,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:58:32,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:58:32,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:58:32,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:58:32,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:58:32,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:58:32,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:58:32,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:58:32,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:58:32,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:58:32,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:58:32,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:58:32,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:58:32,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:58:32,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:58:32,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:58:32,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:58:32,924 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:58:32,924 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:58:32,924 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:58:32,924 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:58:32,925 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:58:32,925 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:58:32,925 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:58:32,925 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:58:32,925 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:58:32,926 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:58:32,926 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:58:32,926 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:58:32,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:58:32,927 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:58:32,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:58:32,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:58:32,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:58:32,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:58:32,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:58:32,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:58:32,929 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:58:32,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:58:32,929 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:58:32,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:58:32,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:58:32,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:58:32,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:32,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:58:32,930 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:58:32,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:58:32,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:58:32,931 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:58:32,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:58:32,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:58:32,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:58:32,932 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39feee77bf576ea852c42114836a4ed3182237f56346991038306ebcfd74e257 [2022-11-19 06:58:33,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:58:33,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:58:33,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:58:33,271 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:58:33,272 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:58:33,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2022-11-19 06:58:33,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/data/919fc1328/2170d86667484b118701366065558784/FLAG35f3a0321 [2022-11-19 06:58:33,908 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:58:33,909 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2022-11-19 06:58:33,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/data/919fc1328/2170d86667484b118701366065558784/FLAG35f3a0321 [2022-11-19 06:58:34,247 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/data/919fc1328/2170d86667484b118701366065558784 [2022-11-19 06:58:34,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:58:34,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:58:34,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:34,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:58:34,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:58:34,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689951db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34, skipping insertion in model container [2022-11-19 06:58:34,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:58:34,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:58:34,562 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2022-11-19 06:58:34,568 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2022-11-19 06:58:34,575 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2022-11-19 06:58:34,577 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2022-11-19 06:58:34,580 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2022-11-19 06:58:34,582 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2022-11-19 06:58:34,585 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2022-11-19 06:58:34,587 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2022-11-19 06:58:34,589 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2022-11-19 06:58:34,590 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2022-11-19 06:58:34,594 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2022-11-19 06:58:34,595 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2022-11-19 06:58:34,672 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2022-11-19 06:58:34,679 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2022-11-19 06:58:34,685 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2022-11-19 06:58:34,695 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2022-11-19 06:58:34,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:34,711 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:58:34,726 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2022-11-19 06:58:34,727 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2022-11-19 06:58:34,731 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2022-11-19 06:58:34,732 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2022-11-19 06:58:34,734 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2022-11-19 06:58:34,735 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2022-11-19 06:58:34,737 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2022-11-19 06:58:34,739 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2022-11-19 06:58:34,740 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2022-11-19 06:58:34,741 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2022-11-19 06:58:34,744 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2022-11-19 06:58:34,745 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2022-11-19 06:58:34,779 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2022-11-19 06:58:34,781 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2022-11-19 06:58:34,783 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2022-11-19 06:58:34,785 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2022-11-19 06:58:34,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:34,803 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:58:34,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34 WrapperNode [2022-11-19 06:58:34,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:34,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:34,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:58:34,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:58:34,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,877 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 590 [2022-11-19 06:58:34,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:34,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:58:34,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:58:34,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:58:34,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,908 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:58:34,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:58:34,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:58:34,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:58:34,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (1/1) ... [2022-11-19 06:58:34,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:34,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:34,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:58:34,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:58:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:58:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:58:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:58:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:58:35,146 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:58:35,148 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:58:35,820 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:58:35,837 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:58:35,837 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:58:35,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:35 BoogieIcfgContainer [2022-11-19 06:58:35,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:58:35,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:58:35,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:58:35,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:58:35,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:58:34" (1/3) ... [2022-11-19 06:58:35,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34043e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:35, skipping insertion in model container [2022-11-19 06:58:35,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:34" (2/3) ... [2022-11-19 06:58:35,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34043e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:35, skipping insertion in model container [2022-11-19 06:58:35,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:35" (3/3) ... [2022-11-19 06:58:35,881 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2022-11-19 06:58:35,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:58:35,904 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-19 06:58:36,014 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:58:36,027 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52e762df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:58:36,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-19 06:58:36,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 101 states have (on average 1.9306930693069306) internal successors, (195), 117 states have internal predecessors, (195), 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) [2022-11-19 06:58:36,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 06:58:36,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:36,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 06:58:36,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:36,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:36,054 INFO L85 PathProgramCache]: Analyzing trace with hash 547035891, now seen corresponding path program 1 times [2022-11-19 06:58:36,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:36,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899768070] [2022-11-19 06:58:36,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:36,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:36,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:36,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899768070] [2022-11-19 06:58:36,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899768070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:36,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:36,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:58:36,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738421240] [2022-11-19 06:58:36,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:36,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:36,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:36,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:36,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:36,474 INFO L87 Difference]: Start difference. First operand has 118 states, 101 states have (on average 1.9306930693069306) internal successors, (195), 117 states have internal predecessors, (195), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-19 06:58:36,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:36,819 INFO L93 Difference]: Finished difference Result 126 states and 200 transitions. [2022-11-19 06:58:36,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:58:36,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-11-19 06:58:36,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:36,837 INFO L225 Difference]: With dead ends: 126 [2022-11-19 06:58:36,838 INFO L226 Difference]: Without dead ends: 113 [2022-11-19 06:58:36,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:36,852 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 158 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:36,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 159 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 06:58:36,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-19 06:58:36,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2022-11-19 06:58:36,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 98 states have (on average 1.3673469387755102) internal successors, (134), 112 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) [2022-11-19 06:58:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 134 transitions. [2022-11-19 06:58:36,901 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 134 transitions. Word has length 6 [2022-11-19 06:58:36,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:36,902 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 134 transitions. [2022-11-19 06:58:36,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-19 06:58:36,902 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 134 transitions. [2022-11-19 06:58:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 06:58:36,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:36,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:36,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:58:36,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:36,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:36,904 INFO L85 PathProgramCache]: Analyzing trace with hash -221752512, now seen corresponding path program 1 times [2022-11-19 06:58:36,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:36,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572849648] [2022-11-19 06:58:36,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:36,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:37,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:37,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:37,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572849648] [2022-11-19 06:58:37,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572849648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:37,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:37,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:58:37,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491024315] [2022-11-19 06:58:37,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:37,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:58:37,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:37,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:58:37,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:37,098 INFO L87 Difference]: Start difference. First operand 113 states and 134 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-11-19 06:58:37,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:37,339 INFO L93 Difference]: Finished difference Result 113 states and 134 transitions. [2022-11-19 06:58:37,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:58:37,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2022-11-19 06:58:37,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:37,342 INFO L225 Difference]: With dead ends: 113 [2022-11-19 06:58:37,343 INFO L226 Difference]: Without dead ends: 108 [2022-11-19 06:58:37,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:37,345 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 18 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:37,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 290 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:37,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-19 06:58:37,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-11-19 06:58:37,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 94 states have (on average 1.2765957446808511) internal successors, (120), 107 states have internal predecessors, (120), 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) [2022-11-19 06:58:37,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 120 transitions. [2022-11-19 06:58:37,369 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 120 transitions. Word has length 7 [2022-11-19 06:58:37,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:37,369 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 120 transitions. [2022-11-19 06:58:37,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-11-19 06:58:37,370 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 120 transitions. [2022-11-19 06:58:37,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 06:58:37,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:37,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:37,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:58:37,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:37,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:37,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1948841692, now seen corresponding path program 1 times [2022-11-19 06:58:37,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:37,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396306195] [2022-11-19 06:58:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:37,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:37,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:37,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396306195] [2022-11-19 06:58:37,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396306195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:37,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:37,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:58:37,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756055495] [2022-11-19 06:58:37,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:37,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:58:37,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:37,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:58:37,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:37,522 INFO L87 Difference]: Start difference. First operand 108 states and 120 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-11-19 06:58:37,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:37,766 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2022-11-19 06:58:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:58:37,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2022-11-19 06:58:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:37,770 INFO L225 Difference]: With dead ends: 108 [2022-11-19 06:58:37,770 INFO L226 Difference]: Without dead ends: 106 [2022-11-19 06:58:37,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:37,772 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 93 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:37,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 96 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:37,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-19 06:58:37,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-11-19 06:58:37,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 93 states have (on average 1.2688172043010753) internal successors, (118), 105 states have internal predecessors, (118), 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) [2022-11-19 06:58:37,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2022-11-19 06:58:37,779 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 10 [2022-11-19 06:58:37,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:37,780 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2022-11-19 06:58:37,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-11-19 06:58:37,780 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2022-11-19 06:58:37,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 06:58:37,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:37,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:37,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:58:37,781 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:37,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:37,782 INFO L85 PathProgramCache]: Analyzing trace with hash 284554395, now seen corresponding path program 1 times [2022-11-19 06:58:37,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:37,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270279631] [2022-11-19 06:58:37,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:37,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:37,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:37,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:37,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270279631] [2022-11-19 06:58:37,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270279631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:37,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:37,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:58:37,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819021817] [2022-11-19 06:58:37,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:37,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:37,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:37,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:37,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:37,868 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-19 06:58:37,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:37,999 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2022-11-19 06:58:37,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:58:37,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-11-19 06:58:37,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:38,000 INFO L225 Difference]: With dead ends: 106 [2022-11-19 06:58:38,000 INFO L226 Difference]: Without dead ends: 102 [2022-11-19 06:58:38,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:38,002 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 11 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:38,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 238 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:38,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-19 06:58:38,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-11-19 06:58:38,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 90 states have (on average 1.2666666666666666) internal successors, (114), 101 states have internal predecessors, (114), 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) [2022-11-19 06:58:38,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2022-11-19 06:58:38,008 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 11 [2022-11-19 06:58:38,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:38,008 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2022-11-19 06:58:38,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-19 06:58:38,009 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2022-11-19 06:58:38,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 06:58:38,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:38,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:38,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:58:38,010 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:38,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:38,011 INFO L85 PathProgramCache]: Analyzing trace with hash 246397519, now seen corresponding path program 1 times [2022-11-19 06:58:38,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:38,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498763025] [2022-11-19 06:58:38,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:38,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:38,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:38,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:38,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498763025] [2022-11-19 06:58:38,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498763025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:38,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:38,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:58:38,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591415523] [2022-11-19 06:58:38,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:38,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:58:38,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:38,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:58:38,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:38,097 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-19 06:58:38,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:38,352 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2022-11-19 06:58:38,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:58:38,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-11-19 06:58:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:38,353 INFO L225 Difference]: With dead ends: 120 [2022-11-19 06:58:38,353 INFO L226 Difference]: Without dead ends: 118 [2022-11-19 06:58:38,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:38,354 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 112 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:38,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 106 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:38,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-19 06:58:38,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2022-11-19 06:58:38,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 89 states have (on average 1.2584269662921348) internal successors, (112), 99 states have internal predecessors, (112), 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) [2022-11-19 06:58:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2022-11-19 06:58:38,361 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 12 [2022-11-19 06:58:38,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:38,361 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2022-11-19 06:58:38,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-19 06:58:38,362 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2022-11-19 06:58:38,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 06:58:38,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:38,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:38,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:58:38,363 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:38,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:38,363 INFO L85 PathProgramCache]: Analyzing trace with hash 248121423, now seen corresponding path program 1 times [2022-11-19 06:58:38,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:38,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433458871] [2022-11-19 06:58:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:38,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:38,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:38,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:38,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433458871] [2022-11-19 06:58:38,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433458871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:38,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:38,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:58:38,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712110312] [2022-11-19 06:58:38,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:38,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:58:38,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:38,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:58:38,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:38,456 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-19 06:58:38,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:38,640 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2022-11-19 06:58:38,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:58:38,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-11-19 06:58:38,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:38,641 INFO L225 Difference]: With dead ends: 100 [2022-11-19 06:58:38,641 INFO L226 Difference]: Without dead ends: 98 [2022-11-19 06:58:38,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:38,642 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 83 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:38,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 78 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-19 06:58:38,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-11-19 06:58:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 88 states have (on average 1.25) internal successors, (110), 97 states have internal predecessors, (110), 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) [2022-11-19 06:58:38,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2022-11-19 06:58:38,648 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 12 [2022-11-19 06:58:38,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:38,648 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2022-11-19 06:58:38,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-19 06:58:38,649 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2022-11-19 06:58:38,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 06:58:38,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:38,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:38,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:58:38,650 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:38,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:38,650 INFO L85 PathProgramCache]: Analyzing trace with hash -951607394, now seen corresponding path program 1 times [2022-11-19 06:58:38,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:38,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196734994] [2022-11-19 06:58:38,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:38,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:38,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:38,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:38,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196734994] [2022-11-19 06:58:38,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196734994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:38,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:38,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:58:38,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751563582] [2022-11-19 06:58:38,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:38,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:58:38,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:38,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:58:38,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:38,836 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2022-11-19 06:58:39,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:39,057 INFO L93 Difference]: Finished difference Result 135 states and 151 transitions. [2022-11-19 06:58:39,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:58:39,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2022-11-19 06:58:39,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:39,059 INFO L225 Difference]: With dead ends: 135 [2022-11-19 06:58:39,059 INFO L226 Difference]: Without dead ends: 133 [2022-11-19 06:58:39,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:58:39,061 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 54 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:39,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 253 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-19 06:58:39,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 104. [2022-11-19 06:58:39,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 94 states have (on average 1.2553191489361701) internal successors, (118), 103 states have internal predecessors, (118), 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) [2022-11-19 06:58:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2022-11-19 06:58:39,081 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 13 [2022-11-19 06:58:39,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:39,082 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2022-11-19 06:58:39,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2022-11-19 06:58:39,082 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2022-11-19 06:58:39,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 06:58:39,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:39,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:39,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:58:39,090 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:39,091 INFO L85 PathProgramCache]: Analyzing trace with hash -950060249, now seen corresponding path program 1 times [2022-11-19 06:58:39,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:39,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819217527] [2022-11-19 06:58:39,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:39,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:39,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:39,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819217527] [2022-11-19 06:58:39,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819217527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:39,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:39,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:58:39,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941344823] [2022-11-19 06:58:39,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:39,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:58:39,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:39,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:58:39,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:39,185 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-11-19 06:58:39,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:39,428 INFO L93 Difference]: Finished difference Result 125 states and 141 transitions. [2022-11-19 06:58:39,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:58:39,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2022-11-19 06:58:39,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:39,430 INFO L225 Difference]: With dead ends: 125 [2022-11-19 06:58:39,430 INFO L226 Difference]: Without dead ends: 123 [2022-11-19 06:58:39,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:39,431 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 103 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:39,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 98 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:39,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-19 06:58:39,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 102. [2022-11-19 06:58:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 93 states have (on average 1.2473118279569892) internal successors, (116), 101 states have internal predecessors, (116), 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) [2022-11-19 06:58:39,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2022-11-19 06:58:39,437 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 13 [2022-11-19 06:58:39,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:39,437 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2022-11-19 06:58:39,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-11-19 06:58:39,438 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2022-11-19 06:58:39,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 06:58:39,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:39,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:39,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 06:58:39,439 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:39,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:39,439 INFO L85 PathProgramCache]: Analyzing trace with hash -898166314, now seen corresponding path program 1 times [2022-11-19 06:58:39,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:39,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608717764] [2022-11-19 06:58:39,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:39,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:39,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:39,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608717764] [2022-11-19 06:58:39,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608717764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:39,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:39,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:58:39,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348329070] [2022-11-19 06:58:39,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:39,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:58:39,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:39,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:58:39,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:39,649 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2022-11-19 06:58:39,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:39,880 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2022-11-19 06:58:39,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:58:39,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2022-11-19 06:58:39,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:39,881 INFO L225 Difference]: With dead ends: 112 [2022-11-19 06:58:39,881 INFO L226 Difference]: Without dead ends: 108 [2022-11-19 06:58:39,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:58:39,884 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 24 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:39,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 222 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:39,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-19 06:58:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2022-11-19 06:58:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 102 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) [2022-11-19 06:58:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2022-11-19 06:58:39,889 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 13 [2022-11-19 06:58:39,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:39,890 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2022-11-19 06:58:39,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2022-11-19 06:58:39,890 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2022-11-19 06:58:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 06:58:39,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:39,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:39,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 06:58:39,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:39,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:39,896 INFO L85 PathProgramCache]: Analyzing trace with hash 612907497, now seen corresponding path program 1 times [2022-11-19 06:58:39,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:39,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651050315] [2022-11-19 06:58:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:39,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:40,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:40,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:40,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651050315] [2022-11-19 06:58:40,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651050315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:40,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:40,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:58:40,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198595429] [2022-11-19 06:58:40,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:40,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:58:40,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:40,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:58:40,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:40,055 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-19 06:58:40,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:40,261 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2022-11-19 06:58:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:58:40,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2022-11-19 06:58:40,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:40,263 INFO L225 Difference]: With dead ends: 130 [2022-11-19 06:58:40,263 INFO L226 Difference]: Without dead ends: 128 [2022-11-19 06:58:40,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:58:40,264 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 43 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:40,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 274 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:40,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-19 06:58:40,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 106. [2022-11-19 06:58:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 97 states have (on average 1.2371134020618557) internal successors, (120), 105 states have internal predecessors, (120), 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) [2022-11-19 06:58:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2022-11-19 06:58:40,272 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 14 [2022-11-19 06:58:40,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:40,274 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2022-11-19 06:58:40,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-19 06:58:40,274 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2022-11-19 06:58:40,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 06:58:40,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:40,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:40,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 06:58:40,277 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:40,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:40,278 INFO L85 PathProgramCache]: Analyzing trace with hash 333456161, now seen corresponding path program 1 times [2022-11-19 06:58:40,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:40,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165926443] [2022-11-19 06:58:40,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:40,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:40,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:40,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:40,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165926443] [2022-11-19 06:58:40,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165926443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:40,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:40,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:58:40,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931607485] [2022-11-19 06:58:40,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:40,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:40,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:40,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:40,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:40,366 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-19 06:58:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:40,427 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2022-11-19 06:58:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:58:40,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2022-11-19 06:58:40,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:40,429 INFO L225 Difference]: With dead ends: 106 [2022-11-19 06:58:40,429 INFO L226 Difference]: Without dead ends: 104 [2022-11-19 06:58:40,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:40,430 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 97 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:40,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 134 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:40,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-19 06:58:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-11-19 06:58:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 96 states have (on average 1.2291666666666667) internal successors, (118), 103 states have internal predecessors, (118), 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) [2022-11-19 06:58:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2022-11-19 06:58:40,436 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 15 [2022-11-19 06:58:40,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:40,436 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2022-11-19 06:58:40,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-19 06:58:40,437 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2022-11-19 06:58:40,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 06:58:40,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:40,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:40,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 06:58:40,441 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:40,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:40,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1747210525, now seen corresponding path program 1 times [2022-11-19 06:58:40,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:40,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711720026] [2022-11-19 06:58:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:40,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:40,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:40,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:40,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711720026] [2022-11-19 06:58:40,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711720026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:40,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:40,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:58:40,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348247287] [2022-11-19 06:58:40,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:40,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:40,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:40,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:40,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:40,511 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-19 06:58:40,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:40,622 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2022-11-19 06:58:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:58:40,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-19 06:58:40,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:40,625 INFO L225 Difference]: With dead ends: 104 [2022-11-19 06:58:40,626 INFO L226 Difference]: Without dead ends: 100 [2022-11-19 06:58:40,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:40,626 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 6 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:40,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 210 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:40,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-19 06:58:40,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-11-19 06:58:40,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 93 states have (on average 1.2258064516129032) internal successors, (114), 99 states have internal predecessors, (114), 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) [2022-11-19 06:58:40,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2022-11-19 06:58:40,631 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 16 [2022-11-19 06:58:40,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:40,632 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2022-11-19 06:58:40,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-19 06:58:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2022-11-19 06:58:40,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 06:58:40,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:40,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:40,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 06:58:40,633 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:40,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1396602585, now seen corresponding path program 1 times [2022-11-19 06:58:40,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:40,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271645117] [2022-11-19 06:58:40,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:40,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:40,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:40,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:40,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271645117] [2022-11-19 06:58:40,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271645117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:40,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:40,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:58:40,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847034702] [2022-11-19 06:58:40,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:40,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:58:40,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:40,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:58:40,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:40,791 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-19 06:58:41,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:41,025 INFO L93 Difference]: Finished difference Result 115 states and 131 transitions. [2022-11-19 06:58:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:58:41,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2022-11-19 06:58:41,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:41,026 INFO L225 Difference]: With dead ends: 115 [2022-11-19 06:58:41,026 INFO L226 Difference]: Without dead ends: 113 [2022-11-19 06:58:41,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:58:41,027 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 218 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:41,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 48 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:41,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-19 06:58:41,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 96. [2022-11-19 06:58:41,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 95 states have internal predecessors, (110), 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) [2022-11-19 06:58:41,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2022-11-19 06:58:41,032 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 17 [2022-11-19 06:58:41,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:41,033 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2022-11-19 06:58:41,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-19 06:58:41,033 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2022-11-19 06:58:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 06:58:41,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:41,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:41,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 06:58:41,034 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:41,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:41,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1343161505, now seen corresponding path program 1 times [2022-11-19 06:58:41,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:41,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904174066] [2022-11-19 06:58:41,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:41,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:41,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:41,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904174066] [2022-11-19 06:58:41,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904174066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:41,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:41,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:58:41,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561319098] [2022-11-19 06:58:41,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:41,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:58:41,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:41,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:58:41,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:41,140 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-19 06:58:41,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:41,334 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2022-11-19 06:58:41,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:58:41,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2022-11-19 06:58:41,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:41,336 INFO L225 Difference]: With dead ends: 96 [2022-11-19 06:58:41,336 INFO L226 Difference]: Without dead ends: 92 [2022-11-19 06:58:41,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:58:41,336 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 130 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:41,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 38 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:41,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-19 06:58:41,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-19 06:58:41,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 87 states have (on average 1.2183908045977012) internal successors, (106), 91 states have internal predecessors, (106), 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) [2022-11-19 06:58:41,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2022-11-19 06:58:41,350 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 17 [2022-11-19 06:58:41,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:41,351 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2022-11-19 06:58:41,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-19 06:58:41,351 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2022-11-19 06:58:41,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 06:58:41,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:41,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:41,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 06:58:41,352 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:41,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:41,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1655929480, now seen corresponding path program 1 times [2022-11-19 06:58:41,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:41,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352321629] [2022-11-19 06:58:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:41,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:41,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:41,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:41,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352321629] [2022-11-19 06:58:41,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352321629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:41,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:41,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:58:41,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510095310] [2022-11-19 06:58:41,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:41,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:58:41,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:41,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:58:41,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:41,450 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-19 06:58:41,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:41,672 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2022-11-19 06:58:41,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:58:41,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2022-11-19 06:58:41,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:41,673 INFO L225 Difference]: With dead ends: 102 [2022-11-19 06:58:41,673 INFO L226 Difference]: Without dead ends: 53 [2022-11-19 06:58:41,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:58:41,677 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 136 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:41,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 41 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:58:41,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-19 06:58:41,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-19 06:58:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.0816326530612246) internal successors, (53), 52 states have internal predecessors, (53), 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) [2022-11-19 06:58:41,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2022-11-19 06:58:41,679 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 17 [2022-11-19 06:58:41,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:41,680 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2022-11-19 06:58:41,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-19 06:58:41,680 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2022-11-19 06:58:41,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 06:58:41,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:41,683 INFO L195 NwaCegarLoop]: 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] [2022-11-19 06:58:41,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 06:58:41,684 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:41,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:41,684 INFO L85 PathProgramCache]: Analyzing trace with hash -789661849, now seen corresponding path program 1 times [2022-11-19 06:58:41,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:41,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705431469] [2022-11-19 06:58:41,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:41,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:41,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:41,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:41,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705431469] [2022-11-19 06:58:41,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705431469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:41,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:41,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-19 06:58:41,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116821423] [2022-11-19 06:58:41,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:41,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 06:58:41,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:41,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 06:58:41,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-19 06:58:41,961 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2022-11-19 06:58:42,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:42,105 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2022-11-19 06:58:42,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 06:58:42,106 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 43 [2022-11-19 06:58:42,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:42,106 INFO L225 Difference]: With dead ends: 53 [2022-11-19 06:58:42,106 INFO L226 Difference]: Without dead ends: 51 [2022-11-19 06:58:42,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-11-19 06:58:42,107 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 83 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:42,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 21 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:42,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-19 06:58:42,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-19 06:58:42,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 1.0625) internal successors, (51), 50 states have internal predecessors, (51), 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) [2022-11-19 06:58:42,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2022-11-19 06:58:42,109 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 43 [2022-11-19 06:58:42,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:42,110 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2022-11-19 06:58:42,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2022-11-19 06:58:42,110 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2022-11-19 06:58:42,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 06:58:42,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:42,110 INFO L195 NwaCegarLoop]: 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] [2022-11-19 06:58:42,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 06:58:42,111 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:42,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:42,111 INFO L85 PathProgramCache]: Analyzing trace with hash -789645961, now seen corresponding path program 1 times [2022-11-19 06:58:42,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:42,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342204532] [2022-11-19 06:58:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:42,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:42,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:42,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:42,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342204532] [2022-11-19 06:58:42,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342204532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:42,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:42,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-19 06:58:42,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520273482] [2022-11-19 06:58:42,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:42,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 06:58:42,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:42,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 06:58:42,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-19 06:58:42,392 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2022-11-19 06:58:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:42,531 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2022-11-19 06:58:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 06:58:42,532 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 43 [2022-11-19 06:58:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:42,533 INFO L225 Difference]: With dead ends: 58 [2022-11-19 06:58:42,533 INFO L226 Difference]: Without dead ends: 56 [2022-11-19 06:58:42,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-11-19 06:58:42,534 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 71 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:42,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 21 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:42,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-19 06:58:42,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2022-11-19 06:58:42,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 47 states have (on average 1.0425531914893618) internal successors, (49), 48 states have internal predecessors, (49), 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) [2022-11-19 06:58:42,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2022-11-19 06:58:42,536 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 43 [2022-11-19 06:58:42,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:42,536 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2022-11-19 06:58:42,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2022-11-19 06:58:42,536 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2022-11-19 06:58:42,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 06:58:42,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:42,537 INFO L195 NwaCegarLoop]: 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] [2022-11-19 06:58:42,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 06:58:42,537 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:42,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:42,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1290290900, now seen corresponding path program 1 times [2022-11-19 06:58:42,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:42,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869163749] [2022-11-19 06:58:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:42,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:42,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:42,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869163749] [2022-11-19 06:58:42,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869163749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:42,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:42,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:58:42,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862627365] [2022-11-19 06:58:42,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:42,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:58:42,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:42,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:58:42,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:42,735 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2022-11-19 06:58:42,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:42,854 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2022-11-19 06:58:42,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:58:42,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2022-11-19 06:58:42,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:42,855 INFO L225 Difference]: With dead ends: 49 [2022-11-19 06:58:42,855 INFO L226 Difference]: Without dead ends: 45 [2022-11-19 06:58:42,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:58:42,856 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 56 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:42,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 10 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:42,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-19 06:58:42,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-19 06:58:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 44 states have internal predecessors, (45), 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) [2022-11-19 06:58:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2022-11-19 06:58:42,858 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 44 [2022-11-19 06:58:42,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:42,859 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2022-11-19 06:58:42,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2022-11-19 06:58:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2022-11-19 06:58:42,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 06:58:42,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:42,860 INFO L195 NwaCegarLoop]: 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] [2022-11-19 06:58:42,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 06:58:42,860 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 06:58:42,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:42,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1290783444, now seen corresponding path program 1 times [2022-11-19 06:58:42,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:42,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553356382] [2022-11-19 06:58:42,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:42,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:43,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:43,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:43,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553356382] [2022-11-19 06:58:43,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553356382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:43,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:43,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:58:43,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439755067] [2022-11-19 06:58:43,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:43,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:58:43,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:43,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:58:43,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:43,045 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2022-11-19 06:58:43,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:43,169 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2022-11-19 06:58:43,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:58:43,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2022-11-19 06:58:43,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:43,170 INFO L225 Difference]: With dead ends: 49 [2022-11-19 06:58:43,170 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 06:58:43,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:58:43,171 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 70 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:43,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 7 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:43,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 06:58:43,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 06:58:43,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-19 06:58:43,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 06:58:43,172 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2022-11-19 06:58:43,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:43,172 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 06:58:43,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2022-11-19 06:58:43,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 06:58:43,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 06:58:43,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 16 remaining) [2022-11-19 06:58:43,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (14 of 16 remaining) [2022-11-19 06:58:43,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (13 of 16 remaining) [2022-11-19 06:58:43,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (12 of 16 remaining) [2022-11-19 06:58:43,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (11 of 16 remaining) [2022-11-19 06:58:43,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2022-11-19 06:58:43,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (9 of 16 remaining) [2022-11-19 06:58:43,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (8 of 16 remaining) [2022-11-19 06:58:43,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (7 of 16 remaining) [2022-11-19 06:58:43,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (6 of 16 remaining) [2022-11-19 06:58:43,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2022-11-19 06:58:43,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (4 of 16 remaining) [2022-11-19 06:58:43,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (3 of 16 remaining) [2022-11-19 06:58:43,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (2 of 16 remaining) [2022-11-19 06:58:43,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (1 of 16 remaining) [2022-11-19 06:58:43,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2022-11-19 06:58:43,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 06:58:43,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 06:58:43,370 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2022-11-19 06:58:43,370 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 229) no Hoare annotation was computed. [2022-11-19 06:58:43,370 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 969) no Hoare annotation was computed. [2022-11-19 06:58:43,371 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 991) no Hoare annotation was computed. [2022-11-19 06:58:43,371 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 275) no Hoare annotation was computed. [2022-11-19 06:58:43,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 883) no Hoare annotation was computed. [2022-11-19 06:58:43,372 INFO L899 garLoopResultBuilder]: For program point L581(lines 581 971) no Hoare annotation was computed. [2022-11-19 06:58:43,372 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2022-11-19 06:58:43,372 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-11-19 06:58:43,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 06:58:43,373 INFO L899 garLoopResultBuilder]: For program point L317(lines 317 994) no Hoare annotation was computed. [2022-11-19 06:58:43,373 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-11-19 06:58:43,373 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 424) no Hoare annotation was computed. [2022-11-19 06:58:43,373 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 242) no Hoare annotation was computed. [2022-11-19 06:58:43,373 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 125) no Hoare annotation was computed. [2022-11-19 06:58:43,373 INFO L899 garLoopResultBuilder]: For program point L615(lines 615 626) no Hoare annotation was computed. [2022-11-19 06:58:43,374 INFO L899 garLoopResultBuilder]: For program point L929(lines 929 941) no Hoare annotation was computed. [2022-11-19 06:58:43,374 INFO L899 garLoopResultBuilder]: For program point L219(line 219) no Hoare annotation was computed. [2022-11-19 06:58:43,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 269) no Hoare annotation was computed. [2022-11-19 06:58:43,374 INFO L899 garLoopResultBuilder]: For program point L665(lines 665 963) no Hoare annotation was computed. [2022-11-19 06:58:43,374 INFO L899 garLoopResultBuilder]: For program point L434(lines 434 985) no Hoare annotation was computed. [2022-11-19 06:58:43,374 INFO L899 garLoopResultBuilder]: For program point L269(line 269) no Hoare annotation was computed. [2022-11-19 06:58:43,375 INFO L899 garLoopResultBuilder]: For program point L649(lines 649 965) no Hoare annotation was computed. [2022-11-19 06:58:43,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2022-11-19 06:58:43,375 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 988) no Hoare annotation was computed. [2022-11-19 06:58:43,375 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2022-11-19 06:58:43,376 INFO L899 garLoopResultBuilder]: For program point L468(lines 468 492) no Hoare annotation was computed. [2022-11-19 06:58:43,376 INFO L899 garLoopResultBuilder]: For program point L881(lines 881 907) no Hoare annotation was computed. [2022-11-19 06:58:43,377 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 193) no Hoare annotation was computed. [2022-11-19 06:58:43,377 INFO L899 garLoopResultBuilder]: For program point L683(lines 683 694) no Hoare annotation was computed. [2022-11-19 06:58:43,377 INFO L899 garLoopResultBuilder]: For program point L105(line 105) no Hoare annotation was computed. [2022-11-19 06:58:43,377 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 288) no Hoare annotation was computed. [2022-11-19 06:58:43,377 INFO L899 garLoopResultBuilder]: For program point L931(line 931) no Hoare annotation was computed. [2022-11-19 06:58:43,377 INFO L899 garLoopResultBuilder]: For program point L733(lines 733 957) no Hoare annotation was computed. [2022-11-19 06:58:43,378 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 234) no Hoare annotation was computed. [2022-11-19 06:58:43,378 INFO L899 garLoopResultBuilder]: For program point L502(lines 502 979) no Hoare annotation was computed. [2022-11-19 06:58:43,378 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 231) no Hoare annotation was computed. [2022-11-19 06:58:43,378 INFO L899 garLoopResultBuilder]: For program point L717(lines 717 959) no Hoare annotation was computed. [2022-11-19 06:58:43,378 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 982) no Hoare annotation was computed. [2022-11-19 06:58:43,378 INFO L902 garLoopResultBuilder]: At program point L932(lines 17 1006) the Hoare annotation is: true [2022-11-19 06:58:43,379 INFO L899 garLoopResultBuilder]: For program point L866(lines 866 946) no Hoare annotation was computed. [2022-11-19 06:58:43,379 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 277) no Hoare annotation was computed. [2022-11-19 06:58:43,379 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2022-11-19 06:58:43,379 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 560) no Hoare annotation was computed. [2022-11-19 06:58:43,379 INFO L899 garLoopResultBuilder]: For program point L883(line 883) no Hoare annotation was computed. [2022-11-19 06:58:43,379 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 762) no Hoare annotation was computed. [2022-11-19 06:58:43,380 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-11-19 06:58:43,380 INFO L899 garLoopResultBuilder]: For program point L801(lines 801 951) no Hoare annotation was computed. [2022-11-19 06:58:43,380 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 06:58:43,380 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2022-11-19 06:58:43,380 INFO L899 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2022-11-19 06:58:43,380 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 973) no Hoare annotation was computed. [2022-11-19 06:58:43,381 INFO L899 garLoopResultBuilder]: For program point L917(lines 917 943) no Hoare annotation was computed. [2022-11-19 06:58:43,381 INFO L899 garLoopResultBuilder]: For program point L785(lines 785 953) no Hoare annotation was computed. [2022-11-19 06:58:43,381 INFO L899 garLoopResultBuilder]: For program point L207(line 207) no Hoare annotation was computed. [2022-11-19 06:58:43,381 INFO L899 garLoopResultBuilder]: For program point L521(lines 521 976) no Hoare annotation was computed. [2022-11-19 06:58:43,381 INFO L895 garLoopResultBuilder]: At program point L868(lines 26 1000) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2022-11-19 06:58:43,382 INFO L899 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2022-11-19 06:58:43,382 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 628) no Hoare annotation was computed. [2022-11-19 06:58:43,382 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2022-11-19 06:58:43,382 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2022-11-19 06:58:43,382 INFO L899 garLoopResultBuilder]: For program point L819(lines 819 830) no Hoare annotation was computed. [2022-11-19 06:58:43,382 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2022-11-19 06:58:43,383 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 967) no Hoare annotation was computed. [2022-11-19 06:58:43,383 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2022-11-19 06:58:43,383 INFO L899 garLoopResultBuilder]: For program point L919(line 919) no Hoare annotation was computed. [2022-11-19 06:58:43,383 INFO L899 garLoopResultBuilder]: For program point L853(lines 853 947) no Hoare annotation was computed. [2022-11-19 06:58:43,383 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 236) no Hoare annotation was computed. [2022-11-19 06:58:43,383 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 970) no Hoare annotation was computed. [2022-11-19 06:58:43,384 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 993) no Hoare annotation was computed. [2022-11-19 06:58:43,384 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 696) no Hoare annotation was computed. [2022-11-19 06:58:43,384 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2022-11-19 06:58:43,384 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 995) no Hoare annotation was computed. [2022-11-19 06:58:43,384 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 931) no Hoare annotation was computed. [2022-11-19 06:58:43,384 INFO L895 garLoopResultBuilder]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2022-11-19 06:58:43,385 INFO L899 garLoopResultBuilder]: For program point L706(lines 706 961) no Hoare annotation was computed. [2022-11-19 06:58:43,385 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 354) no Hoare annotation was computed. [2022-11-19 06:58:43,385 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2022-11-19 06:58:43,385 INFO L899 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2022-11-19 06:58:43,385 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 964) no Hoare annotation was computed. [2022-11-19 06:58:43,385 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 56) no Hoare annotation was computed. [2022-11-19 06:58:43,386 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 919) no Hoare annotation was computed. [2022-11-19 06:58:43,386 INFO L902 garLoopResultBuilder]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2022-11-19 06:58:43,386 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 987) no Hoare annotation was computed. [2022-11-19 06:58:43,386 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 764) no Hoare annotation was computed. [2022-11-19 06:58:43,386 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 285) no Hoare annotation was computed. [2022-11-19 06:58:43,386 INFO L899 garLoopResultBuilder]: For program point L377(lines 377 989) no Hoare annotation was computed. [2022-11-19 06:58:43,387 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 955) no Hoare annotation was computed. [2022-11-19 06:58:43,387 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2022-11-19 06:58:43,387 INFO L899 garLoopResultBuilder]: For program point L411(lines 411 422) no Hoare annotation was computed. [2022-11-19 06:58:43,387 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 958) no Hoare annotation was computed. [2022-11-19 06:58:43,387 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2022-11-19 06:58:43,387 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 981) no Hoare annotation was computed. [2022-11-19 06:58:43,388 INFO L895 garLoopResultBuilder]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2022-11-19 06:58:43,388 INFO L899 garLoopResultBuilder]: For program point L874(lines 874 945) no Hoare annotation was computed. [2022-11-19 06:58:43,388 INFO L899 garLoopResultBuilder]: For program point L808(lines 808 832) no Hoare annotation was computed. [2022-11-19 06:58:43,388 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 233) no Hoare annotation was computed. [2022-11-19 06:58:43,388 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 999) no Hoare annotation was computed. [2022-11-19 06:58:43,388 INFO L899 garLoopResultBuilder]: For program point L445(lines 445 983) no Hoare annotation was computed. [2022-11-19 06:58:43,389 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2022-11-19 06:58:43,389 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 123) no Hoare annotation was computed. [2022-11-19 06:58:43,389 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 949) no Hoare annotation was computed. [2022-11-19 06:58:43,389 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 284) no Hoare annotation was computed. [2022-11-19 06:58:43,389 INFO L899 garLoopResultBuilder]: For program point L479(lines 479 490) no Hoare annotation was computed. [2022-11-19 06:58:43,389 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 952) no Hoare annotation was computed. [2022-11-19 06:58:43,390 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 283) no Hoare annotation was computed. [2022-11-19 06:58:43,390 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 286) no Hoare annotation was computed. [2022-11-19 06:58:43,390 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 975) no Hoare annotation was computed. [2022-11-19 06:58:43,390 INFO L899 garLoopResultBuilder]: For program point L298(lines 298 997) no Hoare annotation was computed. [2022-11-19 06:58:43,390 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 58) no Hoare annotation was computed. [2022-11-19 06:58:43,390 INFO L899 garLoopResultBuilder]: For program point L513(lines 513 977) no Hoare annotation was computed. [2022-11-19 06:58:43,390 INFO L899 garLoopResultBuilder]: For program point L893(lines 893 905) no Hoare annotation was computed. [2022-11-19 06:58:43,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2022-11-19 06:58:43,391 INFO L895 garLoopResultBuilder]: At program point L282(lines 132 284) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (not (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| |ULTIMATE.start_main_~main__t~0#1|))) [2022-11-19 06:58:43,391 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 191) no Hoare annotation was computed. [2022-11-19 06:58:43,391 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2022-11-19 06:58:43,391 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 356) no Hoare annotation was computed. [2022-11-19 06:58:43,391 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 558) no Hoare annotation was computed. [2022-11-19 06:58:43,395 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:43,397 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:58:43,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:58:43 BoogieIcfgContainer [2022-11-19 06:58:43,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:58:43,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:58:43,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:58:43,413 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:58:43,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:35" (3/4) ... [2022-11-19 06:58:43,417 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:58:43,432 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-19 06:58:43,432 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 06:58:43,433 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 06:58:43,434 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:58:43,549 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:58:43,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:58:43,550 INFO L158 Benchmark]: Toolchain (without parser) took 9295.98ms. Allocated memory was 115.3MB in the beginning and 184.5MB in the end (delta: 69.2MB). Free memory was 73.4MB in the beginning and 57.8MB in the end (delta: 15.6MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2022-11-19 06:58:43,550 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:58:43,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.65ms. Allocated memory is still 115.3MB. Free memory was 73.2MB in the beginning and 78.7MB in the end (delta: -5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:58:43,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.40ms. Allocated memory is still 115.3MB. Free memory was 78.7MB in the beginning and 75.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 06:58:43,551 INFO L158 Benchmark]: Boogie Preprocessor took 36.39ms. Allocated memory is still 115.3MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:58:43,552 INFO L158 Benchmark]: RCFGBuilder took 925.21ms. Allocated memory is still 115.3MB. Free memory was 73.1MB in the beginning and 41.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-19 06:58:43,558 INFO L158 Benchmark]: TraceAbstraction took 7569.11ms. Allocated memory was 115.3MB in the beginning and 184.5MB in the end (delta: 69.2MB). Free memory was 41.0MB in the beginning and 66.2MB in the end (delta: -25.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-19 06:58:43,558 INFO L158 Benchmark]: Witness Printer took 136.93ms. Allocated memory is still 184.5MB. Free memory was 66.2MB in the beginning and 57.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:58:43,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.65ms. Allocated memory is still 115.3MB. Free memory was 73.2MB in the beginning and 78.7MB in the end (delta: -5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.40ms. Allocated memory is still 115.3MB. Free memory was 78.7MB in the beginning and 75.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.39ms. Allocated memory is still 115.3MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 925.21ms. Allocated memory is still 115.3MB. Free memory was 73.1MB in the beginning and 41.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7569.11ms. Allocated memory was 115.3MB in the beginning and 184.5MB in the end (delta: 69.2MB). Free memory was 41.0MB in the beginning and 66.2MB in the end (delta: -25.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 136.93ms. Allocated memory is still 184.5MB. Free memory was 66.2MB in the beginning and 57.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 48]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 105]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 117]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 207]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 219]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 257]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 269]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 883]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 895]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 931]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 118 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1566 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1566 mSDsluCounter, 2344 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1350 mSDsCounter, 328 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3554 IncrementalHoareTripleChecker+Invalid, 3882 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 328 mSolverCounterUnsat, 994 mSDtfsCounter, 3554 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=0, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 119 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 16 NumberOfFragments, 31 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4434 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 207 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 348 ConstructedInterpolants, 0 QuantifiedInterpolants, 1122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 <= main__t && !(main__tagbuf_len <= main__t) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 06:58:43,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792e5655-4093-4b5d-8e0c-3574a0960782/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE