./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 0e0057cc 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_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/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_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:22:24,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:22:24,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:22:24,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:22:24,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:22:24,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:22:24,625 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:22:24,626 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:22:24,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:22:24,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:22:24,628 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:22:24,629 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:22:24,629 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:22:24,630 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:22:24,630 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:22:24,631 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:22:24,631 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:22:24,632 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:22:24,632 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:22:24,633 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:22:24,634 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:22:24,634 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:22:24,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:22:24,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:22:24,636 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:22:24,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:22:24,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:22:24,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:22:24,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:22:24,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:22:24,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:22:24,639 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:22:24,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:22:24,640 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:22:24,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:22:24,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:22:24,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:22:24,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:24,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:22:24,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:22:24,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:22:24,642 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:22:24,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:22:24,642 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:22:24,642 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:22:24,643 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:22:24,643 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:22:24,643 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39feee77bf576ea852c42114836a4ed3182237f56346991038306ebcfd74e257 [2023-12-02 12:22:24,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:22:24,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:22:24,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:22:24,864 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:22:24,864 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:22:24,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2023-12-02 12:22:27,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:22:27,878 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:22:27,879 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2023-12-02 12:22:27,891 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/data/818c623a0/4b644d2d977e499b87b0a81a6b25d611/FLAGc363126de [2023-12-02 12:22:27,906 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/data/818c623a0/4b644d2d977e499b87b0a81a6b25d611 [2023-12-02 12:22:27,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:22:27,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:22:27,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:27,912 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:22:27,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:22:27,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:27" (1/1) ... [2023-12-02 12:22:27,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509842e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:27, skipping insertion in model container [2023-12-02 12:22:27,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:27" (1/1) ... [2023-12-02 12:22:27,962 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:22:28,093 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2023-12-02 12:22:28,098 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2023-12-02 12:22:28,104 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2023-12-02 12:22:28,106 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2023-12-02 12:22:28,109 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2023-12-02 12:22:28,110 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2023-12-02 12:22:28,113 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2023-12-02 12:22:28,115 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2023-12-02 12:22:28,117 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2023-12-02 12:22:28,118 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2023-12-02 12:22:28,121 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2023-12-02 12:22:28,123 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2023-12-02 12:22:28,168 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2023-12-02 12:22:28,170 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2023-12-02 12:22:28,174 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2023-12-02 12:22:28,176 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2023-12-02 12:22:28,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:28,193 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:22:28,207 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2023-12-02 12:22:28,208 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2023-12-02 12:22:28,211 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2023-12-02 12:22:28,213 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2023-12-02 12:22:28,215 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2023-12-02 12:22:28,216 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2023-12-02 12:22:28,217 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2023-12-02 12:22:28,219 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2023-12-02 12:22:28,221 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2023-12-02 12:22:28,222 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2023-12-02 12:22:28,224 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2023-12-02 12:22:28,226 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2023-12-02 12:22:28,259 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2023-12-02 12:22:28,262 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2023-12-02 12:22:28,264 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2023-12-02 12:22:28,266 WARN L240 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_90de515e-f208-4522-929e-79223681a0d2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2023-12-02 12:22:28,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:28,282 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:22:28,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28 WrapperNode [2023-12-02 12:22:28,283 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:28,284 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:28,284 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:22:28,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:22:28,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,365 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 690 [2023-12-02 12:22:28,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:28,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:22:28,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:22:28,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:22:28,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,386 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,400 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:22:28,401 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:22:28,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:22:28,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:22:28,402 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (1/1) ... [2023-12-02 12:22:28,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:28,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:28,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:22:28,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:22:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:22:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:22:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:22:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:22:28,572 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:22:28,574 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:22:28,951 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:22:28,975 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:22:28,975 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 12:22:28,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:28 BoogieIcfgContainer [2023-12-02 12:22:28,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:22:28,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:22:28,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:22:28,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:22:28,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:22:27" (1/3) ... [2023-12-02 12:22:28,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67664a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:28, skipping insertion in model container [2023-12-02 12:22:28,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:28" (2/3) ... [2023-12-02 12:22:28,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67664a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:28, skipping insertion in model container [2023-12-02 12:22:28,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:28" (3/3) ... [2023-12-02 12:22:28,985 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2023-12-02 12:22:29,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:22:29,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-12-02 12:22:29,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:22:29,052 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=LoopHeads, 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;@257e764e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:22:29,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-12-02 12:22:29,057 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) [2023-12-02 12:22:29,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 12:22:29,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:29,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 12:22:29,064 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)] === [2023-12-02 12:22:29,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:29,069 INFO L85 PathProgramCache]: Analyzing trace with hash 575665042, now seen corresponding path program 1 times [2023-12-02 12:22:29,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:29,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685670948] [2023-12-02 12:22:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:29,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:29,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:29,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685670948] [2023-12-02 12:22:29,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685670948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:29,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:29,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:22:29,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422459623] [2023-12-02 12:22:29,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:29,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:22:29,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:29,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:22:29,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:22:29,330 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) [2023-12-02 12:22:29,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:29,578 INFO L93 Difference]: Finished difference Result 124 states and 200 transitions. [2023-12-02 12:22:29,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:22:29,581 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 [2023-12-02 12:22:29,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:29,589 INFO L225 Difference]: With dead ends: 124 [2023-12-02 12:22:29,590 INFO L226 Difference]: Without dead ends: 113 [2023-12-02 12:22:29,592 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 [2023-12-02 12:22:29,595 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 156 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:29,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 159 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:22:29,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-02 12:22:29,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-12-02 12:22:29,631 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) [2023-12-02 12:22:29,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 134 transitions. [2023-12-02 12:22:29,634 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 134 transitions. Word has length 6 [2023-12-02 12:22:29,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:29,635 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 134 transitions. [2023-12-02 12:22:29,635 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) [2023-12-02 12:22:29,635 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 134 transitions. [2023-12-02 12:22:29,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 12:22:29,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:29,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:29,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:22:29,637 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)] === [2023-12-02 12:22:29,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:29,637 INFO L85 PathProgramCache]: Analyzing trace with hash 665751169, now seen corresponding path program 1 times [2023-12-02 12:22:29,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:29,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979571362] [2023-12-02 12:22:29,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:29,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:29,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:29,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:29,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979571362] [2023-12-02 12:22:29,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979571362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:29,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:29,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:22:29,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915205310] [2023-12-02 12:22:29,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:29,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:22:29,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:29,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:22:29,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:22:29,763 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) [2023-12-02 12:22:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:29,908 INFO L93 Difference]: Finished difference Result 113 states and 134 transitions. [2023-12-02 12:22:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:22:29,908 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 [2023-12-02 12:22:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:29,910 INFO L225 Difference]: With dead ends: 113 [2023-12-02 12:22:29,910 INFO L226 Difference]: Without dead ends: 108 [2023-12-02 12:22:29,911 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 [2023-12-02 12:22:29,912 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 32 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:29,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 264 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:22:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-02 12:22:29,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-12-02 12:22:29,920 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) [2023-12-02 12:22:29,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 120 transitions. [2023-12-02 12:22:29,922 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 120 transitions. Word has length 7 [2023-12-02 12:22:29,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:29,922 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 120 transitions. [2023-12-02 12:22:29,922 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) [2023-12-02 12:22:29,923 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 120 transitions. [2023-12-02 12:22:29,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 12:22:29,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:29,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:29,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:22:29,924 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)] === [2023-12-02 12:22:29,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:29,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1752328187, now seen corresponding path program 1 times [2023-12-02 12:22:29,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:29,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101855799] [2023-12-02 12:22:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:29,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:30,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:30,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:30,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101855799] [2023-12-02 12:22:30,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101855799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:30,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:30,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:22:30,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695860231] [2023-12-02 12:22:30,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:30,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:22:30,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:30,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:22:30,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:22:30,016 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) [2023-12-02 12:22:30,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:30,211 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2023-12-02 12:22:30,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:22:30,211 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 [2023-12-02 12:22:30,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:30,212 INFO L225 Difference]: With dead ends: 108 [2023-12-02 12:22:30,212 INFO L226 Difference]: Without dead ends: 106 [2023-12-02 12:22:30,213 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 [2023-12-02 12:22:30,214 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 93 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-02 12:22:30,215 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] [2023-12-02 12:22:30,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-02 12:22:30,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2023-12-02 12:22:30,221 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) [2023-12-02 12:22:30,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2023-12-02 12:22:30,223 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 10 [2023-12-02 12:22:30,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:30,223 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2023-12-02 12:22:30,223 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) [2023-12-02 12:22:30,223 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2023-12-02 12:22:30,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 12:22:30,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:30,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:30,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:22:30,225 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)] === [2023-12-02 12:22:30,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:30,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1512396964, now seen corresponding path program 1 times [2023-12-02 12:22:30,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:30,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348213146] [2023-12-02 12:22:30,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:30,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:30,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:30,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:30,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348213146] [2023-12-02 12:22:30,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348213146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:30,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:30,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:22:30,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129907838] [2023-12-02 12:22:30,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:30,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:22:30,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:30,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:22:30,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:22:30,292 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) [2023-12-02 12:22:30,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:30,427 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2023-12-02 12:22:30,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:22:30,427 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 [2023-12-02 12:22:30,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:30,429 INFO L225 Difference]: With dead ends: 106 [2023-12-02 12:22:30,429 INFO L226 Difference]: Without dead ends: 102 [2023-12-02 12:22:30,429 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 [2023-12-02 12:22:30,430 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 [2023-12-02 12:22:30,431 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] [2023-12-02 12:22:30,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-02 12:22:30,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-12-02 12:22:30,437 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) [2023-12-02 12:22:30,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2023-12-02 12:22:30,438 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 11 [2023-12-02 12:22:30,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:30,439 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2023-12-02 12:22:30,439 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) [2023-12-02 12:22:30,439 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2023-12-02 12:22:30,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 12:22:30,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:30,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:30,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 12:22:30,440 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)] === [2023-12-02 12:22:30,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash 375480238, now seen corresponding path program 1 times [2023-12-02 12:22:30,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:30,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304300959] [2023-12-02 12:22:30,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:30,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:30,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:30,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:30,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304300959] [2023-12-02 12:22:30,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304300959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:30,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:30,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:22:30,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821145206] [2023-12-02 12:22:30,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:30,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:22:30,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:30,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:22:30,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:22:30,516 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) [2023-12-02 12:22:30,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:30,706 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2023-12-02 12:22:30,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:22:30,707 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 [2023-12-02 12:22:30,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:30,708 INFO L225 Difference]: With dead ends: 120 [2023-12-02 12:22:30,708 INFO L226 Difference]: Without dead ends: 118 [2023-12-02 12:22:30,709 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 [2023-12-02 12:22:30,710 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 112 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-02 12:22:30,710 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] [2023-12-02 12:22:30,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-02 12:22:30,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2023-12-02 12:22:30,717 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) [2023-12-02 12:22:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2023-12-02 12:22:30,718 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 12 [2023-12-02 12:22:30,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:30,718 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2023-12-02 12:22:30,718 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) [2023-12-02 12:22:30,718 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2023-12-02 12:22:30,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 12:22:30,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:30,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:30,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:22:30,719 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)] === [2023-12-02 12:22:30,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:30,720 INFO L85 PathProgramCache]: Analyzing trace with hash 377204142, now seen corresponding path program 1 times [2023-12-02 12:22:30,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:30,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513144896] [2023-12-02 12:22:30,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:30,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:30,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:30,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:30,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513144896] [2023-12-02 12:22:30,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513144896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:30,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:30,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:22:30,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497606435] [2023-12-02 12:22:30,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:30,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:22:30,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:30,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:22:30,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:22:30,788 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) [2023-12-02 12:22:30,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:30,959 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2023-12-02 12:22:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:22:30,960 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 [2023-12-02 12:22:30,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:30,961 INFO L225 Difference]: With dead ends: 100 [2023-12-02 12:22:30,961 INFO L226 Difference]: Without dead ends: 98 [2023-12-02 12:22:30,961 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 [2023-12-02 12:22:30,962 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 [2023-12-02 12:22:30,963 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] [2023-12-02 12:22:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-02 12:22:30,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-12-02 12:22:30,967 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) [2023-12-02 12:22:30,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2023-12-02 12:22:30,968 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 12 [2023-12-02 12:22:30,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:30,969 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2023-12-02 12:22:30,969 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) [2023-12-02 12:22:30,969 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2023-12-02 12:22:30,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 12:22:30,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:30,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:30,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 12:22:30,970 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)] === [2023-12-02 12:22:30,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:30,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1245010401, now seen corresponding path program 1 times [2023-12-02 12:22:30,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:30,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602547244] [2023-12-02 12:22:30,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:30,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:31,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:31,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602547244] [2023-12-02 12:22:31,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602547244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:31,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:31,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:22:31,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975589598] [2023-12-02 12:22:31,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:31,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:22:31,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:31,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:22:31,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:22:31,092 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) [2023-12-02 12:22:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:31,288 INFO L93 Difference]: Finished difference Result 135 states and 151 transitions. [2023-12-02 12:22:31,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 12:22:31,290 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 [2023-12-02 12:22:31,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:31,291 INFO L225 Difference]: With dead ends: 135 [2023-12-02 12:22:31,292 INFO L226 Difference]: Without dead ends: 133 [2023-12-02 12:22:31,292 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 [2023-12-02 12:22:31,293 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 51 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 253 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 [2023-12-02 12:22:31,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 253 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:22:31,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-12-02 12:22:31,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 104. [2023-12-02 12:22:31,299 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) [2023-12-02 12:22:31,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2023-12-02 12:22:31,300 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 13 [2023-12-02 12:22:31,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:31,301 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2023-12-02 12:22:31,301 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) [2023-12-02 12:22:31,301 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2023-12-02 12:22:31,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 12:22:31,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:31,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:31,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 12:22:31,303 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)] === [2023-12-02 12:22:31,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:31,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1243463256, now seen corresponding path program 1 times [2023-12-02 12:22:31,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:31,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428671465] [2023-12-02 12:22:31,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:31,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:31,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:31,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:31,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428671465] [2023-12-02 12:22:31,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428671465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:31,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:31,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:22:31,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805444903] [2023-12-02 12:22:31,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:31,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:22:31,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:31,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:22:31,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:22:31,373 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) [2023-12-02 12:22:31,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:31,560 INFO L93 Difference]: Finished difference Result 125 states and 141 transitions. [2023-12-02 12:22:31,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:22:31,561 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 [2023-12-02 12:22:31,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:31,562 INFO L225 Difference]: With dead ends: 125 [2023-12-02 12:22:31,562 INFO L226 Difference]: Without dead ends: 123 [2023-12-02 12:22:31,562 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 [2023-12-02 12:22:31,563 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 103 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-02 12:22:31,563 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] [2023-12-02 12:22:31,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-12-02 12:22:31,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 102. [2023-12-02 12:22:31,567 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) [2023-12-02 12:22:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2023-12-02 12:22:31,568 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 13 [2023-12-02 12:22:31,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:31,568 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2023-12-02 12:22:31,568 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) [2023-12-02 12:22:31,569 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2023-12-02 12:22:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 12:22:31,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:31,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:31,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 12:22:31,570 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)] === [2023-12-02 12:22:31,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:31,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1191569321, now seen corresponding path program 1 times [2023-12-02 12:22:31,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:31,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406693355] [2023-12-02 12:22:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:31,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:31,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:31,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406693355] [2023-12-02 12:22:31,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406693355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:31,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:31,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:22:31,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291228010] [2023-12-02 12:22:31,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:31,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:22:31,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:31,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:22:31,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:22:31,687 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) [2023-12-02 12:22:31,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:31,845 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2023-12-02 12:22:31,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:22:31,846 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 [2023-12-02 12:22:31,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:31,847 INFO L225 Difference]: With dead ends: 112 [2023-12-02 12:22:31,847 INFO L226 Difference]: Without dead ends: 108 [2023-12-02 12:22:31,847 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 [2023-12-02 12:22:31,848 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 19 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:31,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 215 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:22:31,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-02 12:22:31,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2023-12-02 12:22:31,851 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) [2023-12-02 12:22:31,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2023-12-02 12:22:31,852 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 13 [2023-12-02 12:22:31,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:31,852 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2023-12-02 12:22:31,852 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) [2023-12-02 12:22:31,853 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2023-12-02 12:22:31,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 12:22:31,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:31,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:31,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 12:22:31,854 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)] === [2023-12-02 12:22:31,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash 107348872, now seen corresponding path program 1 times [2023-12-02 12:22:31,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:31,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736987393] [2023-12-02 12:22:31,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:31,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:31,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:31,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736987393] [2023-12-02 12:22:31,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736987393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:31,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:31,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:22:31,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166684420] [2023-12-02 12:22:31,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:31,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:22:31,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:31,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:22:31,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:22:31,966 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) [2023-12-02 12:22:32,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:32,195 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2023-12-02 12:22:32,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 12:22:32,196 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 [2023-12-02 12:22:32,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:32,197 INFO L225 Difference]: With dead ends: 130 [2023-12-02 12:22:32,197 INFO L226 Difference]: Without dead ends: 128 [2023-12-02 12:22:32,198 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 [2023-12-02 12:22:32,198 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 36 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:32,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 306 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:22:32,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-02 12:22:32,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 106. [2023-12-02 12:22:32,202 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) [2023-12-02 12:22:32,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2023-12-02 12:22:32,202 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 14 [2023-12-02 12:22:32,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:32,203 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2023-12-02 12:22:32,203 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) [2023-12-02 12:22:32,203 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2023-12-02 12:22:32,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 12:22:32,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:32,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:32,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 12:22:32,205 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)] === [2023-12-02 12:22:32,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:32,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1841007970, now seen corresponding path program 1 times [2023-12-02 12:22:32,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:32,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469497105] [2023-12-02 12:22:32,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:32,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:32,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:32,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469497105] [2023-12-02 12:22:32,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469497105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:32,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:32,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:22:32,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802700672] [2023-12-02 12:22:32,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:32,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:22:32,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:32,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:22:32,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:22:32,263 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) [2023-12-02 12:22:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:32,322 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2023-12-02 12:22:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:22:32,323 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 [2023-12-02 12:22:32,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:32,324 INFO L225 Difference]: With dead ends: 106 [2023-12-02 12:22:32,324 INFO L226 Difference]: Without dead ends: 104 [2023-12-02 12:22:32,324 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 [2023-12-02 12:22:32,325 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 [2023-12-02 12:22:32,325 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] [2023-12-02 12:22:32,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-02 12:22:32,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-12-02 12:22:32,328 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) [2023-12-02 12:22:32,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2023-12-02 12:22:32,329 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 15 [2023-12-02 12:22:32,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:32,329 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2023-12-02 12:22:32,330 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) [2023-12-02 12:22:32,330 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2023-12-02 12:22:32,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 12:22:32,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:32,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:32,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 12:22:32,331 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)] === [2023-12-02 12:22:32,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:32,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1236676348, now seen corresponding path program 1 times [2023-12-02 12:22:32,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:32,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466731454] [2023-12-02 12:22:32,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:32,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:32,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:32,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:32,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466731454] [2023-12-02 12:22:32,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466731454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:32,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:32,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:22:32,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50435940] [2023-12-02 12:22:32,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:32,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:22:32,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:32,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:22:32,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:22:32,382 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) [2023-12-02 12:22:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:32,475 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2023-12-02 12:22:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:22:32,476 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 [2023-12-02 12:22:32,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:32,477 INFO L225 Difference]: With dead ends: 104 [2023-12-02 12:22:32,477 INFO L226 Difference]: Without dead ends: 100 [2023-12-02 12:22:32,477 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 [2023-12-02 12:22:32,478 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 [2023-12-02 12:22:32,478 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] [2023-12-02 12:22:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-12-02 12:22:32,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-12-02 12:22:32,481 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) [2023-12-02 12:22:32,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2023-12-02 12:22:32,481 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 16 [2023-12-02 12:22:32,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:32,482 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2023-12-02 12:22:32,482 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) [2023-12-02 12:22:32,482 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2023-12-02 12:22:32,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 12:22:32,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:32,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:32,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 12:22:32,483 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)] === [2023-12-02 12:22:32,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:32,484 INFO L85 PathProgramCache]: Analyzing trace with hash -43292888, now seen corresponding path program 1 times [2023-12-02 12:22:32,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:32,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761015859] [2023-12-02 12:22:32,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:32,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:32,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:32,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:32,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761015859] [2023-12-02 12:22:32,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761015859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:32,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:32,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:22:32,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178551052] [2023-12-02 12:22:32,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:32,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:22:32,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:32,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:22:32,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:22:32,583 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) [2023-12-02 12:22:32,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:32,754 INFO L93 Difference]: Finished difference Result 115 states and 131 transitions. [2023-12-02 12:22:32,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:22:32,754 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 [2023-12-02 12:22:32,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:32,755 INFO L225 Difference]: With dead ends: 115 [2023-12-02 12:22:32,755 INFO L226 Difference]: Without dead ends: 113 [2023-12-02 12:22:32,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-02 12:22:32,757 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 217 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:32,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 48 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:22:32,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-02 12:22:32,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 96. [2023-12-02 12:22:32,760 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) [2023-12-02 12:22:32,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2023-12-02 12:22:32,761 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 17 [2023-12-02 12:22:32,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:32,761 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2023-12-02 12:22:32,761 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) [2023-12-02 12:22:32,761 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2023-12-02 12:22:32,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 12:22:32,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:32,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:32,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 12:22:32,762 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)] === [2023-12-02 12:22:32,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:32,763 INFO L85 PathProgramCache]: Analyzing trace with hash 10148192, now seen corresponding path program 1 times [2023-12-02 12:22:32,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:32,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777808354] [2023-12-02 12:22:32,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:32,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:32,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:32,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:32,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777808354] [2023-12-02 12:22:32,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777808354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:32,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:32,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:22:32,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316484314] [2023-12-02 12:22:32,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:32,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:22:32,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:32,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:22:32,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:22:32,865 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) [2023-12-02 12:22:33,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:33,048 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2023-12-02 12:22:33,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:22:33,048 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 [2023-12-02 12:22:33,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:33,049 INFO L225 Difference]: With dead ends: 96 [2023-12-02 12:22:33,049 INFO L226 Difference]: Without dead ends: 92 [2023-12-02 12:22:33,049 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 [2023-12-02 12:22:33,050 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 129 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 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 [2023-12-02 12:22:33,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 38 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:22:33,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-12-02 12:22:33,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-12-02 12:22:33,053 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) [2023-12-02 12:22:33,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2023-12-02 12:22:33,053 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 17 [2023-12-02 12:22:33,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:33,054 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2023-12-02 12:22:33,054 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) [2023-12-02 12:22:33,054 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2023-12-02 12:22:33,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 12:22:33,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:33,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:33,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 12:22:33,055 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)] === [2023-12-02 12:22:33,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:33,055 INFO L85 PathProgramCache]: Analyzing trace with hash -302619783, now seen corresponding path program 1 times [2023-12-02 12:22:33,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:33,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857476328] [2023-12-02 12:22:33,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:33,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:33,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:33,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857476328] [2023-12-02 12:22:33,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857476328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:33,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:33,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:22:33,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381778849] [2023-12-02 12:22:33,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:33,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:22:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:33,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:22:33,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:22:33,154 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) [2023-12-02 12:22:33,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:33,323 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2023-12-02 12:22:33,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:22:33,324 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 [2023-12-02 12:22:33,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:33,324 INFO L225 Difference]: With dead ends: 102 [2023-12-02 12:22:33,324 INFO L226 Difference]: Without dead ends: 53 [2023-12-02 12:22:33,325 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 [2023-12-02 12:22:33,326 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 188 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:33,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 38 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:22:33,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-02 12:22:33,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-12-02 12:22:33,328 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) [2023-12-02 12:22:33,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2023-12-02 12:22:33,329 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 17 [2023-12-02 12:22:33,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:33,329 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2023-12-02 12:22:33,329 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) [2023-12-02 12:22:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2023-12-02 12:22:33,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 12:22:33,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:33,330 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] [2023-12-02 12:22:33,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 12:22:33,331 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)] === [2023-12-02 12:22:33,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:33,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1238358488, now seen corresponding path program 1 times [2023-12-02 12:22:33,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:33,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146729429] [2023-12-02 12:22:33,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:33,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:33,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:33,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146729429] [2023-12-02 12:22:33,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146729429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:33,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:33,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-02 12:22:33,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327582386] [2023-12-02 12:22:33,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:33,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 12:22:33,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:33,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 12:22:33,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-12-02 12:22:33,568 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) [2023-12-02 12:22:33,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:33,675 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2023-12-02 12:22:33,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 12:22:33,675 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 [2023-12-02 12:22:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:33,676 INFO L225 Difference]: With dead ends: 53 [2023-12-02 12:22:33,676 INFO L226 Difference]: Without dead ends: 51 [2023-12-02 12:22:33,676 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 [2023-12-02 12:22:33,677 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 43 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:33,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 21 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:22:33,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-02 12:22:33,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-12-02 12:22:33,679 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) [2023-12-02 12:22:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2023-12-02 12:22:33,679 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 43 [2023-12-02 12:22:33,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:33,680 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2023-12-02 12:22:33,680 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) [2023-12-02 12:22:33,680 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2023-12-02 12:22:33,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 12:22:33,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:33,681 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] [2023-12-02 12:22:33,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 12:22:33,681 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)] === [2023-12-02 12:22:33,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:33,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1238342600, now seen corresponding path program 1 times [2023-12-02 12:22:33,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:33,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713131439] [2023-12-02 12:22:33,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:33,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:33,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:33,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713131439] [2023-12-02 12:22:33,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713131439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:33,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:33,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-02 12:22:33,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71051007] [2023-12-02 12:22:33,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:33,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 12:22:33,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:33,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 12:22:33,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-12-02 12:22:33,898 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) [2023-12-02 12:22:34,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:34,010 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2023-12-02 12:22:34,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 12:22:34,011 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 [2023-12-02 12:22:34,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:34,012 INFO L225 Difference]: With dead ends: 58 [2023-12-02 12:22:34,012 INFO L226 Difference]: Without dead ends: 56 [2023-12-02 12:22:34,012 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 [2023-12-02 12:22:34,013 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 34 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:34,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 21 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:22:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-02 12:22:34,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2023-12-02 12:22:34,015 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) [2023-12-02 12:22:34,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2023-12-02 12:22:34,015 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 43 [2023-12-02 12:22:34,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:34,015 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2023-12-02 12:22:34,016 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) [2023-12-02 12:22:34,016 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2023-12-02 12:22:34,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 12:22:34,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:34,016 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] [2023-12-02 12:22:34,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 12:22:34,016 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)] === [2023-12-02 12:22:34,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:34,017 INFO L85 PathProgramCache]: Analyzing trace with hash 265596979, now seen corresponding path program 1 times [2023-12-02 12:22:34,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:34,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009412704] [2023-12-02 12:22:34,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:34,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:34,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:34,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:34,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009412704] [2023-12-02 12:22:34,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009412704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:34,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:34,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 12:22:34,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472041563] [2023-12-02 12:22:34,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:34,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:22:34,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:34,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:22:34,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:22:34,438 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2023-12-02 12:22:34,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:34,514 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2023-12-02 12:22:34,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:22:34,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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 [2023-12-02 12:22:34,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:34,515 INFO L225 Difference]: With dead ends: 49 [2023-12-02 12:22:34,515 INFO L226 Difference]: Without dead ends: 45 [2023-12-02 12:22:34,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:22:34,516 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:34,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 9 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:22:34,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-12-02 12:22:34,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-12-02 12:22:34,518 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) [2023-12-02 12:22:34,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2023-12-02 12:22:34,518 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 44 [2023-12-02 12:22:34,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:34,519 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2023-12-02 12:22:34,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2023-12-02 12:22:34,519 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2023-12-02 12:22:34,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 12:22:34,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:34,520 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] [2023-12-02 12:22:34,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 12:22:34,520 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)] === [2023-12-02 12:22:34,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:34,520 INFO L85 PathProgramCache]: Analyzing trace with hash 266089523, now seen corresponding path program 1 times [2023-12-02 12:22:34,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:34,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279818351] [2023-12-02 12:22:34,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:34,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:22:34,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:22:34,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279818351] [2023-12-02 12:22:34,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279818351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:34,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:34,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 12:22:34,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863121214] [2023-12-02 12:22:34,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:34,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:22:34,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:22:34,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:22:34,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:22:34,860 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2023-12-02 12:22:34,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:34,949 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2023-12-02 12:22:34,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:22:34,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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 [2023-12-02 12:22:34,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:34,950 INFO L225 Difference]: With dead ends: 49 [2023-12-02 12:22:34,950 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 12:22:34,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-02 12:22:34,951 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 17 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:34,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 11 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:22:34,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 12:22:34,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 12:22:34,953 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) [2023-12-02 12:22:34,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 12:22:34,953 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2023-12-02 12:22:34,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:34,953 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 12:22:34,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2023-12-02 12:22:34,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 12:22:34,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 12:22:34,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 16 remaining) [2023-12-02 12:22:34,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (14 of 16 remaining) [2023-12-02 12:22:34,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (13 of 16 remaining) [2023-12-02 12:22:34,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (12 of 16 remaining) [2023-12-02 12:22:34,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (11 of 16 remaining) [2023-12-02 12:22:34,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2023-12-02 12:22:34,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (9 of 16 remaining) [2023-12-02 12:22:34,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (8 of 16 remaining) [2023-12-02 12:22:34,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (7 of 16 remaining) [2023-12-02 12:22:34,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (6 of 16 remaining) [2023-12-02 12:22:34,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2023-12-02 12:22:34,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (4 of 16 remaining) [2023-12-02 12:22:34,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (3 of 16 remaining) [2023-12-02 12:22:34,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (2 of 16 remaining) [2023-12-02 12:22:34,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (1 of 16 remaining) [2023-12-02 12:22:34,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2023-12-02 12:22:34,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 12:22:34,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 12:22:34,963 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2023-12-02 12:22:34,963 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 229) no Hoare annotation was computed. [2023-12-02 12:22:34,963 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 969) no Hoare annotation was computed. [2023-12-02 12:22:34,963 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 991) no Hoare annotation was computed. [2023-12-02 12:22:34,964 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 275) no Hoare annotation was computed. [2023-12-02 12:22:34,964 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 883) no Hoare annotation was computed. [2023-12-02 12:22:34,964 INFO L899 garLoopResultBuilder]: For program point L581(lines 581 971) no Hoare annotation was computed. [2023-12-02 12:22:34,964 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2023-12-02 12:22:34,964 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-12-02 12:22:34,964 INFO L899 garLoopResultBuilder]: For program point L317(lines 317 994) no Hoare annotation was computed. [2023-12-02 12:22:34,964 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2023-12-02 12:22:34,964 INFO L899 garLoopResultBuilder]: For program point L53(lines 22 1005) no Hoare annotation was computed. [2023-12-02 12:22:34,965 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 424) no Hoare annotation was computed. [2023-12-02 12:22:34,965 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 242) no Hoare annotation was computed. [2023-12-02 12:22:34,965 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 125) no Hoare annotation was computed. [2023-12-02 12:22:34,965 INFO L899 garLoopResultBuilder]: For program point L615(lines 615 626) no Hoare annotation was computed. [2023-12-02 12:22:34,965 INFO L899 garLoopResultBuilder]: For program point L929(lines 929 941) no Hoare annotation was computed. [2023-12-02 12:22:34,965 INFO L899 garLoopResultBuilder]: For program point L863(lines 858 947) no Hoare annotation was computed. [2023-12-02 12:22:34,965 INFO L899 garLoopResultBuilder]: For program point L219(line 219) no Hoare annotation was computed. [2023-12-02 12:22:34,965 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 269) no Hoare annotation was computed. [2023-12-02 12:22:34,965 INFO L899 garLoopResultBuilder]: For program point L665(lines 665 963) no Hoare annotation was computed. [2023-12-02 12:22:34,965 INFO L899 garLoopResultBuilder]: For program point L434(lines 434 985) no Hoare annotation was computed. [2023-12-02 12:22:34,966 INFO L899 garLoopResultBuilder]: For program point L269(line 269) no Hoare annotation was computed. [2023-12-02 12:22:34,966 INFO L899 garLoopResultBuilder]: For program point L649(lines 649 965) no Hoare annotation was computed. [2023-12-02 12:22:34,966 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2023-12-02 12:22:34,966 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 988) no Hoare annotation was computed. [2023-12-02 12:22:34,966 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2023-12-02 12:22:34,966 INFO L899 garLoopResultBuilder]: For program point L468(lines 468 492) no Hoare annotation was computed. [2023-12-02 12:22:34,966 INFO L899 garLoopResultBuilder]: For program point L881(lines 881 907) no Hoare annotation was computed. [2023-12-02 12:22:34,966 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 193) no Hoare annotation was computed. [2023-12-02 12:22:34,966 INFO L899 garLoopResultBuilder]: For program point L683(lines 683 694) no Hoare annotation was computed. [2023-12-02 12:22:34,967 INFO L899 garLoopResultBuilder]: For program point L105(line 105) no Hoare annotation was computed. [2023-12-02 12:22:34,967 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 288) no Hoare annotation was computed. [2023-12-02 12:22:34,967 INFO L899 garLoopResultBuilder]: For program point L931(line 931) no Hoare annotation was computed. [2023-12-02 12:22:34,967 INFO L899 garLoopResultBuilder]: For program point L733(lines 733 957) no Hoare annotation was computed. [2023-12-02 12:22:34,967 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 234) no Hoare annotation was computed. [2023-12-02 12:22:34,967 INFO L899 garLoopResultBuilder]: For program point L502(lines 502 979) no Hoare annotation was computed. [2023-12-02 12:22:34,967 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 231) no Hoare annotation was computed. [2023-12-02 12:22:34,967 INFO L899 garLoopResultBuilder]: For program point L717(lines 717 959) no Hoare annotation was computed. [2023-12-02 12:22:34,967 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 982) no Hoare annotation was computed. [2023-12-02 12:22:34,968 INFO L899 garLoopResultBuilder]: For program point L866(lines 866 946) no Hoare annotation was computed. [2023-12-02 12:22:34,968 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 277) no Hoare annotation was computed. [2023-12-02 12:22:34,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2023-12-02 12:22:34,968 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 560) no Hoare annotation was computed. [2023-12-02 12:22:34,968 INFO L899 garLoopResultBuilder]: For program point L883(line 883) no Hoare annotation was computed. [2023-12-02 12:22:34,968 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 762) no Hoare annotation was computed. [2023-12-02 12:22:34,968 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2023-12-02 12:22:34,968 INFO L899 garLoopResultBuilder]: For program point L801(lines 801 951) no Hoare annotation was computed. [2023-12-02 12:22:34,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 12:22:34,969 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2023-12-02 12:22:34,969 INFO L899 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2023-12-02 12:22:34,969 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 973) no Hoare annotation was computed. [2023-12-02 12:22:34,969 INFO L899 garLoopResultBuilder]: For program point L917(lines 917 943) no Hoare annotation was computed. [2023-12-02 12:22:34,969 INFO L899 garLoopResultBuilder]: For program point L785(lines 785 953) no Hoare annotation was computed. [2023-12-02 12:22:34,969 INFO L899 garLoopResultBuilder]: For program point L207(line 207) no Hoare annotation was computed. [2023-12-02 12:22:34,969 INFO L899 garLoopResultBuilder]: For program point L521(lines 521 976) no Hoare annotation was computed. [2023-12-02 12:22:34,969 INFO L899 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2023-12-02 12:22:34,969 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 628) no Hoare annotation was computed. [2023-12-02 12:22:34,969 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2023-12-02 12:22:34,970 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2023-12-02 12:22:34,970 INFO L899 garLoopResultBuilder]: For program point L819(lines 819 830) no Hoare annotation was computed. [2023-12-02 12:22:34,970 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2023-12-02 12:22:34,970 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 967) no Hoare annotation was computed. [2023-12-02 12:22:34,970 INFO L899 garLoopResultBuilder]: For program point L93(lines 65 999) no Hoare annotation was computed. [2023-12-02 12:22:34,970 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2023-12-02 12:22:34,970 INFO L899 garLoopResultBuilder]: For program point L919(line 919) no Hoare annotation was computed. [2023-12-02 12:22:34,970 INFO L899 garLoopResultBuilder]: For program point L853(lines 853 947) no Hoare annotation was computed. [2023-12-02 12:22:34,970 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 236) no Hoare annotation was computed. [2023-12-02 12:22:34,970 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 970) no Hoare annotation was computed. [2023-12-02 12:22:34,971 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 17 1006) no Hoare annotation was computed. [2023-12-02 12:22:34,971 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 993) no Hoare annotation was computed. [2023-12-02 12:22:34,971 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 696) no Hoare annotation was computed. [2023-12-02 12:22:34,971 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2023-12-02 12:22:34,971 INFO L899 garLoopResultBuilder]: For program point L28(lines 26 1000) no Hoare annotation was computed. [2023-12-02 12:22:34,971 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 995) no Hoare annotation was computed. [2023-12-02 12:22:34,971 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 931) no Hoare annotation was computed. [2023-12-02 12:22:34,971 INFO L899 garLoopResultBuilder]: For program point L706(lines 706 961) no Hoare annotation was computed. [2023-12-02 12:22:34,971 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 354) no Hoare annotation was computed. [2023-12-02 12:22:34,972 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2023-12-02 12:22:34,972 INFO L899 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2023-12-02 12:22:34,972 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 964) no Hoare annotation was computed. [2023-12-02 12:22:34,972 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 56) no Hoare annotation was computed. [2023-12-02 12:22:34,972 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 919) no Hoare annotation was computed. [2023-12-02 12:22:34,972 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 12:22:34,972 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 987) no Hoare annotation was computed. [2023-12-02 12:22:34,972 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 764) no Hoare annotation was computed. [2023-12-02 12:22:34,972 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 285) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point L377(lines 377 989) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 955) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point L411(lines 411 422) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 958) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 981) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point L874(lines 874 945) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point L808(lines 808 832) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 233) no Hoare annotation was computed. [2023-12-02 12:22:34,973 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 999) no Hoare annotation was computed. [2023-12-02 12:22:34,974 INFO L899 garLoopResultBuilder]: For program point L445(lines 445 983) no Hoare annotation was computed. [2023-12-02 12:22:34,974 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2023-12-02 12:22:34,974 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 123) no Hoare annotation was computed. [2023-12-02 12:22:34,974 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 949) no Hoare annotation was computed. [2023-12-02 12:22:34,974 INFO L899 garLoopResultBuilder]: For program point L198(lines 132 284) no Hoare annotation was computed. [2023-12-02 12:22:34,974 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 284) no Hoare annotation was computed. [2023-12-02 12:22:34,974 INFO L899 garLoopResultBuilder]: For program point L479(lines 479 490) no Hoare annotation was computed. [2023-12-02 12:22:34,974 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 952) no Hoare annotation was computed. [2023-12-02 12:22:34,974 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 283) no Hoare annotation was computed. [2023-12-02 12:22:34,974 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 286) no Hoare annotation was computed. [2023-12-02 12:22:34,975 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 975) no Hoare annotation was computed. [2023-12-02 12:22:34,975 INFO L899 garLoopResultBuilder]: For program point L298(lines 298 997) no Hoare annotation was computed. [2023-12-02 12:22:34,975 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 58) no Hoare annotation was computed. [2023-12-02 12:22:34,975 INFO L899 garLoopResultBuilder]: For program point L513(lines 513 977) no Hoare annotation was computed. [2023-12-02 12:22:34,975 INFO L899 garLoopResultBuilder]: For program point L893(lines 893 905) no Hoare annotation was computed. [2023-12-02 12:22:34,975 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2023-12-02 12:22:34,975 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 191) no Hoare annotation was computed. [2023-12-02 12:22:34,975 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2023-12-02 12:22:34,975 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 356) no Hoare annotation was computed. [2023-12-02 12:22:34,975 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 558) no Hoare annotation was computed. [2023-12-02 12:22:34,978 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:34,980 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:22:34,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:22:34 BoogieIcfgContainer [2023-12-02 12:22:34,985 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:22:34,985 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:22:34,985 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:22:34,985 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:22:34,986 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:28" (3/4) ... [2023-12-02 12:22:34,987 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 12:22:35,001 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-02 12:22:35,002 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 12:22:35,003 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 12:22:35,004 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:22:35,123 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 12:22:35,124 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 12:22:35,124 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:22:35,124 INFO L158 Benchmark]: Toolchain (without parser) took 7214.23ms. Allocated memory was 125.8MB in the beginning and 222.3MB in the end (delta: 96.5MB). Free memory was 87.9MB in the beginning and 94.6MB in the end (delta: -6.7MB). Peak memory consumption was 90.4MB. Max. memory is 16.1GB. [2023-12-02 12:22:35,125 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:22:35,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.51ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 63.4MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-02 12:22:35,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.35ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 63.4MB in the beginning and 123.0MB in the end (delta: -59.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2023-12-02 12:22:35,126 INFO L158 Benchmark]: Boogie Preprocessor took 34.66ms. Allocated memory is still 153.1MB. Free memory was 123.0MB in the beginning and 120.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:22:35,126 INFO L158 Benchmark]: RCFGBuilder took 575.78ms. Allocated memory is still 153.1MB. Free memory was 120.9MB in the beginning and 87.4MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-12-02 12:22:35,126 INFO L158 Benchmark]: TraceAbstraction took 6005.42ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 87.4MB in the beginning and 105.1MB in the end (delta: -17.8MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2023-12-02 12:22:35,127 INFO L158 Benchmark]: Witness Printer took 138.72ms. Allocated memory is still 222.3MB. Free memory was 105.1MB in the beginning and 94.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 12:22:35,129 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.51ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 63.4MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.35ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 63.4MB in the beginning and 123.0MB in the end (delta: -59.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.66ms. Allocated memory is still 153.1MB. Free memory was 123.0MB in the beginning and 120.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 575.78ms. Allocated memory is still 153.1MB. Free memory was 120.9MB in the beginning and 87.4MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6005.42ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 87.4MB in the beginning and 105.1MB in the end (delta: -17.8MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. * Witness Printer took 138.72ms. Allocated memory is still 222.3MB. Free memory was 105.1MB in the beginning and 94.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. 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]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 48]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 105]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 117]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 145]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 157]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 173]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 185]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 207]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 219]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 257]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 269]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 883]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 895]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 919]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 931]: a call to reach_error is unreachable For all program executions holds that a 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: 5.9s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1454 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1454 mSDsluCounter, 2343 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1349 mSDsCounter, 285 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3514 IncrementalHoareTripleChecker+Invalid, 3799 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 285 mSolverCounterUnsat, 994 mSDtfsCounter, 3514 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 348 ConstructedInterpolants, 0 QuantifiedInterpolants, 1149 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 RESULT: Ultimate proved your program to be correct! [2023-12-02 12:22:35,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90de515e-f208-4522-929e-79223681a0d2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE