./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce67d33baf8e2191d295422ec2c8649be746cd4f4f75c5de99bdc3950e33cc6c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:42:54,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:42:54,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:42:54,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:42:54,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:42:54,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:42:54,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:42:54,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:42:54,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:42:54,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:42:54,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:42:54,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:42:54,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:42:54,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:42:54,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:42:54,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:42:54,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:42:54,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:42:54,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:42:54,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:42:54,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:42:54,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:42:54,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:42:54,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:42:54,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:42:54,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:42:54,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:42:54,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:42:54,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:42:54,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:42:54,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:42:54,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:42:54,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:42:54,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:42:54,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:42:54,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:42:54,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:42:54,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:42:54,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:42:54,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:42:54,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:42:54,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:42:54,751 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:42:54,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:42:54,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:42:54,754 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:42:54,754 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:42:54,754 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:42:54,754 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:42:54,755 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:42:54,755 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:42:54,755 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:42:54,756 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:42:54,757 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:42:54,757 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:42:54,758 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:42:54,758 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:42:54,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:42:54,759 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:42:54,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:42:54,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:42:54,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:42:54,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:42:54,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:42:54,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:42:54,761 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:42:54,761 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:42:54,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:42:54,761 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:42:54,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:42:54,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:42:54,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:42:54,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:54,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:42:54,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:42:54,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:42:54,764 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:42:54,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:42:54,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:42:54,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:42:54,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:42:54,765 INFO L138 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce67d33baf8e2191d295422ec2c8649be746cd4f4f75c5de99bdc3950e33cc6c [2021-11-07 01:42:55,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:42:55,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:42:55,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:42:55,081 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:42:55,082 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:42:55,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2021-11-07 01:42:55,143 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/data/24e51530c/e2c4e3c8143a422ab6dbfcee303b44ba/FLAG17123c754 [2021-11-07 01:42:55,587 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:42:55,587 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2021-11-07 01:42:55,595 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/data/24e51530c/e2c4e3c8143a422ab6dbfcee303b44ba/FLAG17123c754 [2021-11-07 01:42:55,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/data/24e51530c/e2c4e3c8143a422ab6dbfcee303b44ba [2021-11-07 01:42:55,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:42:55,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:42:55,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:55,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:42:55,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:42:55,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:55" (1/1) ... [2021-11-07 01:42:55,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@298738f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:55, skipping insertion in model container [2021-11-07 01:42:55,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:55" (1/1) ... [2021-11-07 01:42:55,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:42:56,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:56,185 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2021-11-07 01:42:56,191 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2021-11-07 01:42:56,193 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2021-11-07 01:42:56,195 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2021-11-07 01:42:56,198 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2021-11-07 01:42:56,203 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2021-11-07 01:42:56,206 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2021-11-07 01:42:56,208 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2021-11-07 01:42:56,212 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2021-11-07 01:42:56,214 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2021-11-07 01:42:56,231 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2021-11-07 01:42:56,233 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2021-11-07 01:42:56,236 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2021-11-07 01:42:56,238 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2021-11-07 01:42:56,240 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2021-11-07 01:42:56,242 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2021-11-07 01:42:56,245 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2021-11-07 01:42:56,247 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2021-11-07 01:42:56,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:56,259 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:42:56,275 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2021-11-07 01:42:56,285 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2021-11-07 01:42:56,287 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2021-11-07 01:42:56,288 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2021-11-07 01:42:56,290 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2021-11-07 01:42:56,292 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2021-11-07 01:42:56,294 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2021-11-07 01:42:56,297 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2021-11-07 01:42:56,300 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2021-11-07 01:42:56,302 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2021-11-07 01:42:56,304 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2021-11-07 01:42:56,306 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2021-11-07 01:42:56,308 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2021-11-07 01:42:56,311 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2021-11-07 01:42:56,313 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2021-11-07 01:42:56,314 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2021-11-07 01:42:56,317 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2021-11-07 01:42:56,319 WARN L228 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_4fed1035-7677-45a9-bdee-7aedc4507e6a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2021-11-07 01:42:56,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:56,337 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:42:56,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56 WrapperNode [2021-11-07 01:42:56,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:56,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:42:56,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:42:56,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:42:56,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:56,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:56,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:42:56,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:42:56,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:42:56,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:42:56,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:56,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:56,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:56,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:56,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:56,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:56,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:56,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:42:56,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:42:56,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:42:56,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:42:56,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (1/1) ... [2021-11-07 01:42:56,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:56,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:42:56,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:42:56,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:42:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:42:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:42:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:42:56,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:42:56,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:42:56,954 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 01:42:56,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:42:56 BoogieIcfgContainer [2021-11-07 01:42:56,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:42:56,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:42:56,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:42:56,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:42:56,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:42:55" (1/3) ... [2021-11-07 01:42:56,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae6451b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:42:56, skipping insertion in model container [2021-11-07 01:42:56,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:56" (2/3) ... [2021-11-07 01:42:56,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae6451b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:42:56, skipping insertion in model container [2021-11-07 01:42:56,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:42:56" (3/3) ... [2021-11-07 01:42:56,999 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2021-11-07 01:42:57,020 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:42:57,020 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2021-11-07 01:42:57,112 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:42:57,118 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:42:57,118 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-11-07 01:42:57,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 61 states have (on average 1.9180327868852458) internal successors, (117), 79 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:57,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:42:57,142 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:57,143 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:57,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:42:57,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:57,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1091334804, now seen corresponding path program 1 times [2021-11-07 01:42:57,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:42:57,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061620829] [2021-11-07 01:42:57,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:57,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:42:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:57,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:57,418 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:42:57,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061620829] [2021-11-07 01:42:57,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061620829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:57,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:57,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 01:42:57,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397962125] [2021-11-07 01:42:57,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:42:57,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:42:57,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:42:57,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:42:57,445 INFO L87 Difference]: Start difference. First operand has 80 states, 61 states have (on average 1.9180327868852458) internal successors, (117), 79 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) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2021-11-07 01:42:57,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:57,482 INFO L93 Difference]: Finished difference Result 84 states and 119 transitions. [2021-11-07 01:42:57,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:42:57,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 [2021-11-07 01:42:57,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:57,494 INFO L225 Difference]: With dead ends: 84 [2021-11-07 01:42:57,494 INFO L226 Difference]: Without dead ends: 75 [2021-11-07 01:42:57,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:42:57,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-07 01:42:57,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-07 01:42:57,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 74 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:57,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2021-11-07 01:42:57,539 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 14 [2021-11-07 01:42:57,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:57,539 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2021-11-07 01:42:57,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2021-11-07 01:42:57,540 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2021-11-07 01:42:57,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:42:57,541 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:57,541 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:57,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:42:57,542 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:42:57,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:57,543 INFO L85 PathProgramCache]: Analyzing trace with hash 528363536, now seen corresponding path program 1 times [2021-11-07 01:42:57,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:42:57,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071465236] [2021-11-07 01:42:57,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:57,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:42:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:57,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:57,625 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:42:57,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071465236] [2021-11-07 01:42:57,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071465236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:57,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:57,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 01:42:57,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45225497] [2021-11-07 01:42:57,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:42:57,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:42:57,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:42:57,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:42:57,630 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-11-07 01:42:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:57,739 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2021-11-07 01:42:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:42:57,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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 [2021-11-07 01:42:57,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:57,741 INFO L225 Difference]: With dead ends: 75 [2021-11-07 01:42:57,741 INFO L226 Difference]: Without dead ends: 73 [2021-11-07 01:42:57,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:42:57,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-07 01:42:57,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-07 01:42:57,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 72 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:57,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2021-11-07 01:42:57,752 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 15 [2021-11-07 01:42:57,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:57,753 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2021-11-07 01:42:57,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-11-07 01:42:57,753 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2021-11-07 01:42:57,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:42:57,754 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:57,754 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:57,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:42:57,755 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:42:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:57,756 INFO L85 PathProgramCache]: Analyzing trace with hash 951344371, now seen corresponding path program 1 times [2021-11-07 01:42:57,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:42:57,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169983299] [2021-11-07 01:42:57,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:57,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:42:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:57,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:57,869 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:42:57,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169983299] [2021-11-07 01:42:57,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169983299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:57,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:57,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 01:42:57,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680318271] [2021-11-07 01:42:57,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:42:57,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:42:57,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:42:57,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:42:57,877 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2021-11-07 01:42:57,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:57,969 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2021-11-07 01:42:57,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:42:57,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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 [2021-11-07 01:42:57,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:57,971 INFO L225 Difference]: With dead ends: 96 [2021-11-07 01:42:57,978 INFO L226 Difference]: Without dead ends: 94 [2021-11-07 01:42:57,979 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:42:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-07 01:42:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 71. [2021-11-07 01:42:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 70 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:57,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2021-11-07 01:42:57,988 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 17 [2021-11-07 01:42:57,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:57,989 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2021-11-07 01:42:57,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2021-11-07 01:42:57,989 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2021-11-07 01:42:57,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:42:57,994 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:57,995 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:57,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 01:42:57,996 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:42:57,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:57,997 INFO L85 PathProgramCache]: Analyzing trace with hash -573091462, now seen corresponding path program 1 times [2021-11-07 01:42:57,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:42:57,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401111177] [2021-11-07 01:42:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:57,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:42:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:58,124 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:42:58,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401111177] [2021-11-07 01:42:58,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401111177] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:58,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:58,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:42:58,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145399028] [2021-11-07 01:42:58,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:42:58,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:42:58,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:42:58,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:42:58,127 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:58,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:58,228 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2021-11-07 01:42:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:42:58,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2021-11-07 01:42:58,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:58,235 INFO L225 Difference]: With dead ends: 71 [2021-11-07 01:42:58,235 INFO L226 Difference]: Without dead ends: 69 [2021-11-07 01:42:58,236 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:42:58,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-07 01:42:58,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-07 01:42:58,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 55 states have (on average 1.309090909090909) internal successors, (72), 68 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2021-11-07 01:42:58,251 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 18 [2021-11-07 01:42:58,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:58,251 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2021-11-07 01:42:58,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2021-11-07 01:42:58,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:42:58,252 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:58,252 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:58,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 01:42:58,253 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:42:58,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:58,260 INFO L85 PathProgramCache]: Analyzing trace with hash -468627622, now seen corresponding path program 1 times [2021-11-07 01:42:58,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:42:58,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643851598] [2021-11-07 01:42:58,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:58,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:42:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:58,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:58,466 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:42:58,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643851598] [2021-11-07 01:42:58,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643851598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:58,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:58,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:42:58,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241136890] [2021-11-07 01:42:58,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:42:58,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:42:58,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:42:58,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:42:58,469 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:58,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:58,631 INFO L93 Difference]: Finished difference Result 136 states and 142 transitions. [2021-11-07 01:42:58,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:42:58,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2021-11-07 01:42:58,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:58,641 INFO L225 Difference]: With dead ends: 136 [2021-11-07 01:42:58,642 INFO L226 Difference]: Without dead ends: 134 [2021-11-07 01:42:58,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:42:58,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-07 01:42:58,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 72. [2021-11-07 01:42:58,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 71 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:58,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2021-11-07 01:42:58,667 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 21 [2021-11-07 01:42:58,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:58,668 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2021-11-07 01:42:58,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:58,669 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2021-11-07 01:42:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:42:58,670 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:58,671 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:58,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 01:42:58,671 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:42:58,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash -464459857, now seen corresponding path program 1 times [2021-11-07 01:42:58,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:42:58,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949275500] [2021-11-07 01:42:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:58,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:42:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:58,767 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:42:58,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949275500] [2021-11-07 01:42:58,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949275500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:58,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:58,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:42:58,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449279381] [2021-11-07 01:42:58,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:42:58,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:42:58,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:42:58,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:42:58,771 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:58,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:58,885 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2021-11-07 01:42:58,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:42:58,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2021-11-07 01:42:58,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:58,887 INFO L225 Difference]: With dead ends: 103 [2021-11-07 01:42:58,888 INFO L226 Difference]: Without dead ends: 101 [2021-11-07 01:42:58,888 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:42:58,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-07 01:42:58,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 74. [2021-11-07 01:42:58,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 73 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:58,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2021-11-07 01:42:58,896 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 21 [2021-11-07 01:42:58,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:58,897 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2021-11-07 01:42:58,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:58,897 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2021-11-07 01:42:58,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:42:58,898 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:58,899 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:58,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 01:42:58,899 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:42:58,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:58,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1642550139, now seen corresponding path program 1 times [2021-11-07 01:42:58,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:42:58,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571452595] [2021-11-07 01:42:58,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:58,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:42:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:58,961 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:42:58,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571452595] [2021-11-07 01:42:58,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571452595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:58,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:58,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:42:58,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562663066] [2021-11-07 01:42:58,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:42:58,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:42:58,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:42:58,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:42:58,964 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:59,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:59,065 INFO L93 Difference]: Finished difference Result 116 states and 122 transitions. [2021-11-07 01:42:59,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:42:59,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2021-11-07 01:42:59,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:59,067 INFO L225 Difference]: With dead ends: 116 [2021-11-07 01:42:59,067 INFO L226 Difference]: Without dead ends: 114 [2021-11-07 01:42:59,068 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:42:59,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-07 01:42:59,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 72. [2021-11-07 01:42:59,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 59 states have (on average 1.305084745762712) internal successors, (77), 71 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:59,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2021-11-07 01:42:59,074 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 22 [2021-11-07 01:42:59,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:59,075 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2021-11-07 01:42:59,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:59,075 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2021-11-07 01:42:59,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:42:59,076 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:59,076 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:59,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 01:42:59,077 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:42:59,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:59,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1513349547, now seen corresponding path program 1 times [2021-11-07 01:42:59,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:42:59,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204067037] [2021-11-07 01:42:59,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:59,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:42:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:59,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:59,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:42:59,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204067037] [2021-11-07 01:42:59,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204067037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:59,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:59,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:42:59,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670251662] [2021-11-07 01:42:59,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:42:59,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:42:59,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:42:59,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:42:59,134 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:59,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:59,210 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2021-11-07 01:42:59,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:42:59,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2021-11-07 01:42:59,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:59,212 INFO L225 Difference]: With dead ends: 72 [2021-11-07 01:42:59,212 INFO L226 Difference]: Without dead ends: 70 [2021-11-07 01:42:59,213 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:42:59,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-07 01:42:59,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-07 01:42:59,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 58 states have (on average 1.293103448275862) internal successors, (75), 69 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:59,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2021-11-07 01:42:59,219 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 22 [2021-11-07 01:42:59,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:59,219 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2021-11-07 01:42:59,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:59,219 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2021-11-07 01:42:59,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:42:59,220 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:59,220 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:59,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 01:42:59,221 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:42:59,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:59,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1665131132, now seen corresponding path program 1 times [2021-11-07 01:42:59,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:42:59,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076383213] [2021-11-07 01:42:59,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:59,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:42:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:59,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:59,250 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:42:59,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076383213] [2021-11-07 01:42:59,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076383213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:59,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:59,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 01:42:59,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627293848] [2021-11-07 01:42:59,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:42:59,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:42:59,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:42:59,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:42:59,253 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:59,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:59,289 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2021-11-07 01:42:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:42:59,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-11-07 01:42:59,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:59,291 INFO L225 Difference]: With dead ends: 110 [2021-11-07 01:42:59,291 INFO L226 Difference]: Without dead ends: 70 [2021-11-07 01:42:59,291 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:42:59,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-07 01:42:59,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-07 01:42:59,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 69 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:59,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2021-11-07 01:42:59,297 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 24 [2021-11-07 01:42:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:59,297 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2021-11-07 01:42:59,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2021-11-07 01:42:59,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:42:59,299 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:59,299 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:59,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 01:42:59,299 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:42:59,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:59,300 INFO L85 PathProgramCache]: Analyzing trace with hash -649021887, now seen corresponding path program 1 times [2021-11-07 01:42:59,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:42:59,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634436123] [2021-11-07 01:42:59,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:59,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:42:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:59,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:42:59,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:42:59,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634436123] [2021-11-07 01:42:59,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634436123] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:42:59,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097896634] [2021-11-07 01:42:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:59,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:42:59,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:42:59,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:42:59,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 01:42:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:59,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:42:59,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:59,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:42:59,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:42:59,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097896634] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:42:59,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1270393845] [2021-11-07 01:42:59,716 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2021-11-07 01:42:59,716 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:42:59,721 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:42:59,727 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:42:59,727 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:42:59,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:59,792 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:42:59,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:59,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:42:59,800 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:42:59,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:59,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:42:59,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-11-07 01:42:59,844 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 21=[|v_#valid_10|]} [2021-11-07 01:42:59,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:42:59,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:59,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:42:59,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:59,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:42:59,879 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:42:59,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:42:59,902 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:59,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:42:59,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:42:59,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:59,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:42:59,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:59,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:42:59,947 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:42:59,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:42:59,962 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:59,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:59,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-07 01:42:59,973 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:42:59,976 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:146, output treesize:121 [2021-11-07 01:43:00,050 INFO L180 QuantifierPusher]: treesize reduction 40, result has 82.5 percent of original size [2021-11-07 01:43:00,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-07 01:43:00,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:00,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-07 01:43:00,156 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size [2021-11-07 01:43:00,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-07 01:43:00,205 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-07 01:43:00,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,233 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-07 01:43:00,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:00,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-07 01:43:00,416 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.9 percent of original size [2021-11-07 01:43:00,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-07 01:43:00,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,614 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-07 01:43:00,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:43:00,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:00,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-07 01:43:00,657 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size [2021-11-07 01:43:00,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-11-07 01:43:00,690 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-07 01:43:00,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:43:00,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:00,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:00,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 307 [2021-11-07 01:43:00,993 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:43:06,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:43:06,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:43:06,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2021-11-07 01:43:06,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262789952] [2021-11-07 01:43:06,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:43:06,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:06,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:43:06,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=518, Unknown=0, NotChecked=0, Total=702 [2021-11-07 01:43:06,531 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:06,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:06,653 INFO L93 Difference]: Finished difference Result 110 states and 114 transitions. [2021-11-07 01:43:06,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:43:06,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 25 [2021-11-07 01:43:06,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:06,654 INFO L225 Difference]: With dead ends: 110 [2021-11-07 01:43:06,654 INFO L226 Difference]: Without dead ends: 108 [2021-11-07 01:43:06,655 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 49 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2021-11-07 01:43:06,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-07 01:43:06,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 67. [2021-11-07 01:43:06,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 56 states have (on average 1.25) internal successors, (70), 66 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:06,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2021-11-07 01:43:06,660 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 25 [2021-11-07 01:43:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:06,660 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2021-11-07 01:43:06,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:06,660 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2021-11-07 01:43:06,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:43:06,661 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:06,661 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:06,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 01:43:06,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-07 01:43:06,879 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:06,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:06,879 INFO L85 PathProgramCache]: Analyzing trace with hash 535752363, now seen corresponding path program 1 times [2021-11-07 01:43:06,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:06,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816318804] [2021-11-07 01:43:06,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:06,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:06,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:06,944 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:06,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816318804] [2021-11-07 01:43:06,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816318804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:06,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:06,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:43:06,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026063850] [2021-11-07 01:43:06,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:06,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:06,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:06,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:06,948 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:07,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:07,010 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2021-11-07 01:43:07,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:43:07,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2021-11-07 01:43:07,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:07,013 INFO L225 Difference]: With dead ends: 68 [2021-11-07 01:43:07,013 INFO L226 Difference]: Without dead ends: 66 [2021-11-07 01:43:07,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:43:07,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-07 01:43:07,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2021-11-07 01:43:07,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 64 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:07,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2021-11-07 01:43:07,019 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 25 [2021-11-07 01:43:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:07,022 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2021-11-07 01:43:07,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:07,022 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2021-11-07 01:43:07,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 01:43:07,023 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:07,024 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:07,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-07 01:43:07,024 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:07,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:07,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1351309273, now seen corresponding path program 1 times [2021-11-07 01:43:07,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:07,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443678406] [2021-11-07 01:43:07,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:07,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:07,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:43:07,096 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:07,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443678406] [2021-11-07 01:43:07,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443678406] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:43:07,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553931000] [2021-11-07 01:43:07,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:07,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:43:07,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:43:07,102 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:43:07,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 01:43:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:07,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:43:07,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:43:07,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:07,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:43:07,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553931000] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:43:07,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1490216785] [2021-11-07 01:43:07,396 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-11-07 01:43:07,396 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:43:07,396 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:43:07,396 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:43:07,396 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:43:07,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,432 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:43:07,433 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:43:07,434 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:43:07,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:43:07,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-11-07 01:43:07,442 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_10|], 21=[|v_#valid_11|]} [2021-11-07 01:43:07,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:43:07,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:43:07,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:43:07,459 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:43:07,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,464 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:07,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:43:07,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:43:07,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:43:07,500 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:43:07,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,505 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-07 01:43:07,509 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:43:07,509 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:146, output treesize:121 [2021-11-07 01:43:07,546 INFO L180 QuantifierPusher]: treesize reduction 40, result has 82.5 percent of original size [2021-11-07 01:43:07,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-07 01:43:07,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-07 01:43:07,596 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size [2021-11-07 01:43:07,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-07 01:43:07,621 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-07 01:43:07,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,634 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-07 01:43:07,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-07 01:43:07,709 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.9 percent of original size [2021-11-07 01:43:07,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-07 01:43:07,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,819 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-07 01:43:07,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:43:07,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:07,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-07 01:43:07,845 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size [2021-11-07 01:43:07,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-11-07 01:43:07,866 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-07 01:43:07,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:43:07,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:07,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:08,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 307 [2021-11-07 01:43:08,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:08,169 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:43:13,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:43:13,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:43:13,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2021-11-07 01:43:13,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002283667] [2021-11-07 01:43:13,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:43:13,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:13,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:43:13,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2021-11-07 01:43:13,328 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:13,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:13,407 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2021-11-07 01:43:13,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:43:13,408 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 26 [2021-11-07 01:43:13,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:13,409 INFO L225 Difference]: With dead ends: 66 [2021-11-07 01:43:13,409 INFO L226 Difference]: Without dead ends: 64 [2021-11-07 01:43:13,409 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2021-11-07 01:43:13,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-07 01:43:13,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 59. [2021-11-07 01:43:13,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.22) internal successors, (61), 58 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2021-11-07 01:43:13,412 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 26 [2021-11-07 01:43:13,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:13,412 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2021-11-07 01:43:13,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:13,413 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2021-11-07 01:43:13,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 01:43:13,413 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:13,414 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:13,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:13,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-11-07 01:43:13,627 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:13,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:13,628 INFO L85 PathProgramCache]: Analyzing trace with hash -571541778, now seen corresponding path program 1 times [2021-11-07 01:43:13,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:13,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266523411] [2021-11-07 01:43:13,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:13,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:13,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:13,665 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:13,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266523411] [2021-11-07 01:43:13,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266523411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:13,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:13,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:43:13,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036366988] [2021-11-07 01:43:13,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:13,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:13,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:13,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:13,668 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:13,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:13,719 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2021-11-07 01:43:13,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:43:13,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2021-11-07 01:43:13,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:13,723 INFO L225 Difference]: With dead ends: 59 [2021-11-07 01:43:13,723 INFO L226 Difference]: Without dead ends: 57 [2021-11-07 01:43:13,724 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:43:13,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-07 01:43:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-07 01:43:13,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 56 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2021-11-07 01:43:13,728 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 26 [2021-11-07 01:43:13,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:13,730 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2021-11-07 01:43:13,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:13,730 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2021-11-07 01:43:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:43:13,734 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:13,734 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:13,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-11-07 01:43:13,734 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:13,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:13,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1546681483, now seen corresponding path program 1 times [2021-11-07 01:43:13,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:13,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375732583] [2021-11-07 01:43:13,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:13,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:13,815 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:13,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375732583] [2021-11-07 01:43:13,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375732583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:13,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:13,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:43:13,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213037159] [2021-11-07 01:43:13,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:13,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:13,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:13,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:13,820 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:13,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:13,869 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2021-11-07 01:43:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:43:13,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 29 [2021-11-07 01:43:13,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:13,871 INFO L225 Difference]: With dead ends: 58 [2021-11-07 01:43:13,871 INFO L226 Difference]: Without dead ends: 56 [2021-11-07 01:43:13,871 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:43:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-07 01:43:13,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2021-11-07 01:43:13,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 48 states have (on average 1.1875) internal successors, (57), 54 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:13,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-11-07 01:43:13,875 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 29 [2021-11-07 01:43:13,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:13,875 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-11-07 01:43:13,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:13,875 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-11-07 01:43:13,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:43:13,879 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:13,879 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:13,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-11-07 01:43:13,880 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:13,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:13,880 INFO L85 PathProgramCache]: Analyzing trace with hash -702481542, now seen corresponding path program 1 times [2021-11-07 01:43:13,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:13,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524423313] [2021-11-07 01:43:13,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:13,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:13,932 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:13,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524423313] [2021-11-07 01:43:13,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524423313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:13,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:13,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 01:43:13,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090205788] [2021-11-07 01:43:13,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:43:13,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:13,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:43:13,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:43:13,934 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:14,005 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2021-11-07 01:43:14,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:43:14,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2021-11-07 01:43:14,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:14,006 INFO L225 Difference]: With dead ends: 66 [2021-11-07 01:43:14,006 INFO L226 Difference]: Without dead ends: 64 [2021-11-07 01:43:14,008 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:43:14,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-07 01:43:14,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 53. [2021-11-07 01:43:14,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2021-11-07 01:43:14,011 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 30 [2021-11-07 01:43:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:14,012 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2021-11-07 01:43:14,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2021-11-07 01:43:14,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:43:14,014 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:14,014 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:14,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-11-07 01:43:14,014 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:14,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:14,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1752072319, now seen corresponding path program 1 times [2021-11-07 01:43:14,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:14,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772300285] [2021-11-07 01:43:14,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:14,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:14,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:14,082 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:14,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772300285] [2021-11-07 01:43:14,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772300285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:14,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:14,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:43:14,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131673464] [2021-11-07 01:43:14,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:14,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:14,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:14,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:14,084 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:14,181 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2021-11-07 01:43:14,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:43:14,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 33 [2021-11-07 01:43:14,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:14,183 INFO L225 Difference]: With dead ends: 86 [2021-11-07 01:43:14,183 INFO L226 Difference]: Without dead ends: 84 [2021-11-07 01:43:14,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:43:14,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-07 01:43:14,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 56. [2021-11-07 01:43:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 50 states have (on average 1.16) internal successors, (58), 55 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2021-11-07 01:43:14,188 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 33 [2021-11-07 01:43:14,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:14,188 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2021-11-07 01:43:14,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,188 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2021-11-07 01:43:14,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:43:14,191 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:14,191 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:14,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-11-07 01:43:14,192 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:14,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:14,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1520328763, now seen corresponding path program 1 times [2021-11-07 01:43:14,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:14,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604814421] [2021-11-07 01:43:14,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:14,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:14,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:14,247 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:14,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604814421] [2021-11-07 01:43:14,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604814421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:14,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:14,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:43:14,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512731142] [2021-11-07 01:43:14,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:14,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:14,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:14,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:14,250 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:14,311 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2021-11-07 01:43:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:43:14,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 34 [2021-11-07 01:43:14,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:14,313 INFO L225 Difference]: With dead ends: 56 [2021-11-07 01:43:14,313 INFO L226 Difference]: Without dead ends: 54 [2021-11-07 01:43:14,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:43:14,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-07 01:43:14,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-07 01:43:14,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 53 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2021-11-07 01:43:14,317 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 34 [2021-11-07 01:43:14,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:14,317 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2021-11-07 01:43:14,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,318 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2021-11-07 01:43:14,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 01:43:14,318 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:14,318 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:14,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-11-07 01:43:14,319 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:14,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:14,319 INFO L85 PathProgramCache]: Analyzing trace with hash -746930072, now seen corresponding path program 1 times [2021-11-07 01:43:14,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:14,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195503965] [2021-11-07 01:43:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:14,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:14,351 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:14,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195503965] [2021-11-07 01:43:14,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195503965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:14,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:14,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 01:43:14,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380802810] [2021-11-07 01:43:14,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:43:14,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:14,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:43:14,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:43:14,353 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:14,377 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2021-11-07 01:43:14,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:43:14,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2021-11-07 01:43:14,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:14,378 INFO L225 Difference]: With dead ends: 65 [2021-11-07 01:43:14,378 INFO L226 Difference]: Without dead ends: 63 [2021-11-07 01:43:14,379 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:43:14,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-07 01:43:14,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2021-11-07 01:43:14,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.125) internal successors, (54), 51 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2021-11-07 01:43:14,383 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 36 [2021-11-07 01:43:14,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:14,383 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2021-11-07 01:43:14,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,383 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2021-11-07 01:43:14,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 01:43:14,384 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:14,384 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:14,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-11-07 01:43:14,384 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:14,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:14,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1679991539, now seen corresponding path program 1 times [2021-11-07 01:43:14,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:14,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961186671] [2021-11-07 01:43:14,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:14,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:14,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:14,419 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:14,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961186671] [2021-11-07 01:43:14,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961186671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:14,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:14,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:43:14,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106731099] [2021-11-07 01:43:14,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:14,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:14,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:14,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:14,421 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:14,444 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2021-11-07 01:43:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:43:14,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 37 [2021-11-07 01:43:14,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:14,446 INFO L225 Difference]: With dead ends: 61 [2021-11-07 01:43:14,446 INFO L226 Difference]: Without dead ends: 59 [2021-11-07 01:43:14,446 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:43:14,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-07 01:43:14,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 50. [2021-11-07 01:43:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2021-11-07 01:43:14,450 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 37 [2021-11-07 01:43:14,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:14,450 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2021-11-07 01:43:14,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,450 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2021-11-07 01:43:14,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 01:43:14,451 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:14,451 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:14,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-11-07 01:43:14,452 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:14,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:14,452 INFO L85 PathProgramCache]: Analyzing trace with hash -540125937, now seen corresponding path program 1 times [2021-11-07 01:43:14,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:14,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270617448] [2021-11-07 01:43:14,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:14,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:14,504 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:14,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270617448] [2021-11-07 01:43:14,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270617448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:14,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:14,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:43:14,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437020490] [2021-11-07 01:43:14,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:14,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:14,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:14,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:14,506 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:14,610 INFO L93 Difference]: Finished difference Result 83 states and 88 transitions. [2021-11-07 01:43:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:43:14,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 38 [2021-11-07 01:43:14,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:14,612 INFO L225 Difference]: With dead ends: 83 [2021-11-07 01:43:14,612 INFO L226 Difference]: Without dead ends: 81 [2021-11-07 01:43:14,613 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:43:14,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-07 01:43:14,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2021-11-07 01:43:14,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-11-07 01:43:14,617 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 38 [2021-11-07 01:43:14,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:14,618 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-11-07 01:43:14,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,618 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-11-07 01:43:14,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:43:14,619 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:14,619 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:14,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-11-07 01:43:14,619 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:14,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:14,620 INFO L85 PathProgramCache]: Analyzing trace with hash 435969364, now seen corresponding path program 1 times [2021-11-07 01:43:14,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:14,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959189436] [2021-11-07 01:43:14,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:14,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:14,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:14,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:14,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959189436] [2021-11-07 01:43:14,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959189436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:14,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:14,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:43:14,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450544420] [2021-11-07 01:43:14,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:14,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:14,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:14,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:14,691 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:14,768 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2021-11-07 01:43:14,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:43:14,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2021-11-07 01:43:14,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:14,770 INFO L225 Difference]: With dead ends: 68 [2021-11-07 01:43:14,770 INFO L226 Difference]: Without dead ends: 66 [2021-11-07 01:43:14,770 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:43:14,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-07 01:43:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 53. [2021-11-07 01:43:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 52 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2021-11-07 01:43:14,774 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 39 [2021-11-07 01:43:14,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:14,775 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2021-11-07 01:43:14,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:14,775 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2021-11-07 01:43:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:43:14,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:14,776 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:14,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-11-07 01:43:14,776 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:14,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:14,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1372292551, now seen corresponding path program 1 times [2021-11-07 01:43:14,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:14,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147151747] [2021-11-07 01:43:14,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:14,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:14,835 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:14,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147151747] [2021-11-07 01:43:14,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147151747] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:43:14,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196193199] [2021-11-07 01:43:14,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:14,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:43:14,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:43:14,837 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:43:14,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 01:43:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:14,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:43:14,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:15,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:15,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:15,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:15,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196193199] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:43:15,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [129895562] [2021-11-07 01:43:15,219 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2021-11-07 01:43:15,219 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:43:15,220 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:43:15,220 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:43:15,220 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:43:15,244 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,246 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:43:15,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:43:15,248 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:43:15,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:43:15,250 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-11-07 01:43:15,258 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_11|], 21=[|v_#valid_12|]} [2021-11-07 01:43:15,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:43:15,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:43:15,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:43:15,279 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:43:15,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,283 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:15,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:43:15,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:43:15,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:43:15,310 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:43:15,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,314 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-07 01:43:15,321 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:43:15,321 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:146, output treesize:121 [2021-11-07 01:43:15,358 INFO L180 QuantifierPusher]: treesize reduction 40, result has 82.5 percent of original size [2021-11-07 01:43:15,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-07 01:43:15,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-07 01:43:15,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 369 [2021-11-07 01:43:15,458 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-11-07 01:43:15,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,564 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-11-07 01:43:15,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-07 01:43:15,720 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-07 01:43:15,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 318 [2021-11-07 01:43:15,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-11-07 01:43:15,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:15,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-07 01:43:15,830 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-07 01:43:15,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 318 [2021-11-07 01:43:15,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:15,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,228 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-11-07 01:43:16,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:16,341 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:43:28,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [129895562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:28,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:43:28,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [5, 5, 5] total 37 [2021-11-07 01:43:28,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638226181] [2021-11-07 01:43:28,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-07 01:43:28,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:28,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-07 01:43:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=963, Unknown=0, NotChecked=0, Total=1332 [2021-11-07 01:43:28,970 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 33 states, 33 states have (on average 1.121212121212121) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:39,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:39,207 INFO L93 Difference]: Finished difference Result 114 states and 122 transitions. [2021-11-07 01:43:39,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-07 01:43:39,221 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.121212121212121) internal successors, (37), 32 states have internal predecessors, (37), 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 39 [2021-11-07 01:43:39,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:39,222 INFO L225 Difference]: With dead ends: 114 [2021-11-07 01:43:39,222 INFO L226 Difference]: Without dead ends: 112 [2021-11-07 01:43:39,224 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 77 SyntacticMatches, 10 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=816, Invalid=1734, Unknown=0, NotChecked=0, Total=2550 [2021-11-07 01:43:39,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-11-07 01:43:39,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 76. [2021-11-07 01:43:39,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.1081081081081081) internal successors, (82), 75 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:39,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2021-11-07 01:43:39,234 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 39 [2021-11-07 01:43:39,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:39,235 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2021-11-07 01:43:39,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.121212121212121) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:39,235 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2021-11-07 01:43:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 01:43:39,236 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:39,236 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:39,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:39,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-11-07 01:43:39,463 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:39,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:39,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1929666322, now seen corresponding path program 1 times [2021-11-07 01:43:39,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:39,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674181536] [2021-11-07 01:43:39,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:39,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:39,567 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:43:39,567 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:39,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674181536] [2021-11-07 01:43:39,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674181536] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:43:39,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753053262] [2021-11-07 01:43:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:39,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:43:39,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:43:39,569 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:43:39,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 01:43:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:39,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 01:43:39,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:43:39,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:40,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:43:40,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753053262] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:43:40,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [744938646] [2021-11-07 01:43:40,012 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-07 01:43:40,012 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:43:40,012 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:43:40,013 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:43:40,013 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:43:40,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,046 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:43:40,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:43:40,047 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:43:40,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:43:40,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-11-07 01:43:40,053 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_12|], 21=[|v_#valid_13|]} [2021-11-07 01:43:40,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:43:40,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:43:40,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:43:40,065 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:43:40,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:43:40,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:43:40,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:43:40,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:43:40,091 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:43:40,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,094 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-07 01:43:40,098 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:43:40,098 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:146, output treesize:121 [2021-11-07 01:43:40,129 INFO L180 QuantifierPusher]: treesize reduction 40, result has 82.5 percent of original size [2021-11-07 01:43:40,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-07 01:43:40,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-07 01:43:40,167 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size [2021-11-07 01:43:40,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-11-07 01:43:40,179 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-07 01:43:40,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,188 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-07 01:43:40,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,227 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-07 01:43:40,238 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.9 percent of original size [2021-11-07 01:43:40,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-07 01:43:40,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,328 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-07 01:43:40,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:43:40,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-07 01:43:40,353 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size [2021-11-07 01:43:40,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-11-07 01:43:40,373 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-07 01:43:40,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:43:40,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 307 [2021-11-07 01:43:40,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-11-07 01:43:40,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:40,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 371 [2021-11-07 01:43:40,723 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-11-07 01:43:40,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,817 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-11-07 01:43:40,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:40,968 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.0 percent of original size [2021-11-07 01:43:40,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-07 01:43:40,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:41,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-07 01:43:41,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:41,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-07 01:43:41,131 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.2 percent of original size [2021-11-07 01:43:41,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-11-07 01:43:41,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:41,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 282 [2021-11-07 01:43:41,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:43:41,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-07 01:43:41,201 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.2 percent of original size [2021-11-07 01:43:41,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-11-07 01:43:41,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:41,562 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:43:52,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:43:52,635 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:43:52,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2021-11-07 01:43:52,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663723642] [2021-11-07 01:43:52,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:43:52,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:52,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:43:52,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1364, Unknown=0, NotChecked=0, Total=1640 [2021-11-07 01:43:52,638 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:52,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:52,717 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2021-11-07 01:43:52,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:43:52,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-07 01:43:52,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:52,719 INFO L225 Difference]: With dead ends: 76 [2021-11-07 01:43:52,719 INFO L226 Difference]: Without dead ends: 74 [2021-11-07 01:43:52,719 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 86 SyntacticMatches, 11 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=288, Invalid=1518, Unknown=0, NotChecked=0, Total=1806 [2021-11-07 01:43:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-07 01:43:52,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 51. [2021-11-07 01:43:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.08) internal successors, (54), 50 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:52,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2021-11-07 01:43:52,725 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 43 [2021-11-07 01:43:52,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:52,725 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2021-11-07 01:43:52,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:52,726 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2021-11-07 01:43:52,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 01:43:52,726 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:52,727 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:52,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-07 01:43:52,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable138 [2021-11-07 01:43:52,931 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-11-07 01:43:52,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:52,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1269390535, now seen corresponding path program 1 times [2021-11-07 01:43:52,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:43:52,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540234916] [2021-11-07 01:43:52,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:52,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:43:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:52,995 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:43:52,995 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:43:52,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540234916] [2021-11-07 01:43:52,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540234916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:52,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:52,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:43:52,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293564050] [2021-11-07 01:43:52,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:52,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:43:52,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:52,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:52,997 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 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) [2021-11-07 01:43:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:53,108 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2021-11-07 01:43:53,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:43:53,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 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 44 [2021-11-07 01:43:53,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:53,109 INFO L225 Difference]: With dead ends: 70 [2021-11-07 01:43:53,109 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:43:53,111 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:43:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:43:53,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:43:53,112 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) [2021-11-07 01:43:53,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:43:53,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2021-11-07 01:43:53,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:53,112 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:43:53,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 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) [2021-11-07 01:43:53,113 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:43:53,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:43:53,115 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,120 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,120 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,120 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,120 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,120 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,121 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,121 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,121 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:43:53,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-11-07 01:43:53,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 01:43:53,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:53,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:53,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:53,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:53,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:53,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:43:55,817 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2021-11-07 01:43:55,817 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-11-07 01:43:55,817 INFO L857 garLoopResultBuilder]: For program point L234(lines 234 338) no Hoare annotation was computed. [2021-11-07 01:43:55,818 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 272) no Hoare annotation was computed. [2021-11-07 01:43:55,818 INFO L857 garLoopResultBuilder]: For program point L135(lines 135 397) no Hoare annotation was computed. [2021-11-07 01:43:55,818 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 01:43:55,818 INFO L857 garLoopResultBuilder]: For program point L284(line 284) no Hoare annotation was computed. [2021-11-07 01:43:55,818 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 433) no Hoare annotation was computed. [2021-11-07 01:43:55,818 INFO L857 garLoopResultBuilder]: For program point L384(lines 384 393) no Hoare annotation was computed. [2021-11-07 01:43:55,818 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2021-11-07 01:43:55,819 INFO L853 garLoopResultBuilder]: At program point L401(lines 131 402) the Hoare annotation is: (let ((.cse0 (let ((.cse4 (< 0 ULTIMATE.start_main_~main__scheme~0)) (.cse5 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~1 0))) (.cse6 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 0))) (.cse7 (<= 1 ULTIMATE.start_main_~main__cp~0))) (or (and (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 1) .cse4 .cse5 .cse6 .cse7) (and (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~16 0)) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) .cse4 .cse5 .cse6 .cse7)))) (.cse1 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~3 1)) (.cse2 (< ULTIMATE.start_main_~main__cp~0 ULTIMATE.start_main_~main__urilen~0))) (or (and (= (+ ULTIMATE.start_main_~main__cp~0 1) ULTIMATE.start_main_~main__urilen~0) .cse0 .cse1 .cse2) (let ((.cse3 (select |#memory_int| |#t~string4.base|))) (and (< |#StackHeapBarrier| |#t~string6.base|) (< 0 ULTIMATE.start_main_~main__tokenlen~0) (< |#StackHeapBarrier| |#t~string5.base|) (<= ULTIMATE.start_main_~main__urilen~0 1000000) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (<= ULTIMATE.start_main_~main__scheme~0 1000000) (<= ULTIMATE.start_main_~main__tokenlen~0 1000000) (= (select |#valid| |#t~string6.base|) 1) .cse0 (= 41 (select |#length| |#t~string5.base|)) (= (select |#valid| 0) 0) (< |#StackHeapBarrier| |#t~string4.base|) (= (select |#length| |#t~string6.base|) 12) (= (select .cse3 (+ 1 |#t~string4.offset|)) 0) .cse1 (= |#NULL.offset| 0) (= |#t~string6.offset| 0) (= (select |#length| |#t~string4.base|) 2) (= (select .cse3 |#t~string4.offset|) 48) (= ~__return_main~0 0) (= ~__return_375~0 0) .cse2 (= 0 |#t~string4.offset|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))))) [2021-11-07 01:43:55,819 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 411) no Hoare annotation was computed. [2021-11-07 01:43:55,819 INFO L857 garLoopResultBuilder]: For program point L71(lines 71 416) no Hoare annotation was computed. [2021-11-07 01:43:55,820 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-11-07 01:43:55,820 INFO L857 garLoopResultBuilder]: For program point L253(lines 253 329) no Hoare annotation was computed. [2021-11-07 01:43:55,820 INFO L857 garLoopResultBuilder]: For program point L187(lines 187 355) no Hoare annotation was computed. [2021-11-07 01:43:55,820 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 386) no Hoare annotation was computed. [2021-11-07 01:43:55,820 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 322) no Hoare annotation was computed. [2021-11-07 01:43:55,820 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 353) no Hoare annotation was computed. [2021-11-07 01:43:55,820 INFO L857 garLoopResultBuilder]: For program point L386(line 386) no Hoare annotation was computed. [2021-11-07 01:43:55,821 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 360) no Hoare annotation was computed. [2021-11-07 01:43:55,821 INFO L857 garLoopResultBuilder]: For program point L23(lines 23 438) no Hoare annotation was computed. [2021-11-07 01:43:55,821 INFO L857 garLoopResultBuilder]: For program point L255(line 255) no Hoare annotation was computed. [2021-11-07 01:43:55,821 INFO L857 garLoopResultBuilder]: For program point L189(line 189) no Hoare annotation was computed. [2021-11-07 01:43:55,821 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 403) no Hoare annotation was computed. [2021-11-07 01:43:55,821 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 214) no Hoare annotation was computed. [2021-11-07 01:43:55,821 INFO L857 garLoopResultBuilder]: For program point L272(line 272) no Hoare annotation was computed. [2021-11-07 01:43:55,822 INFO L857 garLoopResultBuilder]: For program point L41(lines 41 435) no Hoare annotation was computed. [2021-11-07 01:43:55,822 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 01:43:55,822 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 189) no Hoare annotation was computed. [2021-11-07 01:43:55,822 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-11-07 01:43:55,822 INFO L857 garLoopResultBuilder]: For program point L372(lines 372 395) no Hoare annotation was computed. [2021-11-07 01:43:55,822 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 316) no Hoare annotation was computed. [2021-11-07 01:43:55,823 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 344) no Hoare annotation was computed. [2021-11-07 01:43:55,823 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-07 01:43:55,823 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 432) no Hoare annotation was computed. [2021-11-07 01:43:55,823 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 113) no Hoare annotation was computed. [2021-11-07 01:43:55,823 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 331) no Hoare annotation was computed. [2021-11-07 01:43:55,823 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 357) no Hoare annotation was computed. [2021-11-07 01:43:55,823 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 284) no Hoare annotation was computed. [2021-11-07 01:43:55,824 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 226) no Hoare annotation was computed. [2021-11-07 01:43:55,824 INFO L857 garLoopResultBuilder]: For program point L374(line 374) no Hoare annotation was computed. [2021-11-07 01:43:55,824 INFO L857 garLoopResultBuilder]: For program point L308(line 308) no Hoare annotation was computed. [2021-11-07 01:43:55,824 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 362) no Hoare annotation was computed. [2021-11-07 01:43:55,824 INFO L857 garLoopResultBuilder]: For program point L226(line 226) no Hoare annotation was computed. [2021-11-07 01:43:55,824 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2021-11-07 01:43:55,824 INFO L857 garLoopResultBuilder]: For program point L61(lines 61 427) no Hoare annotation was computed. [2021-11-07 01:43:55,825 INFO L857 garLoopResultBuilder]: For program point L243(line 243) no Hoare annotation was computed. [2021-11-07 01:43:55,825 INFO L857 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-07 01:43:55,825 INFO L857 garLoopResultBuilder]: For program point L111(lines 111 405) no Hoare annotation was computed. [2021-11-07 01:43:55,825 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 308) no Hoare annotation was computed. [2021-11-07 01:43:55,825 INFO L853 garLoopResultBuilder]: At program point L392(lines 129 403) the Hoare annotation is: (let ((.cse5 (select |#memory_int| |#t~string4.base|))) (and (< |#StackHeapBarrier| |#t~string6.base|) (< 0 ULTIMATE.start_main_~main__tokenlen~0) (let ((.cse0 (< 0 ULTIMATE.start_main_~main__scheme~0)) (.cse1 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 0))) (.cse3 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~3 1)) (.cse4 (<= 1 ULTIMATE.start_main_~main__cp~0))) (or (and (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~16) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~17 0))) (and (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 1) .cse0 .cse1 .cse2 .cse3 .cse4))) (< |#StackHeapBarrier| |#t~string5.base|) (<= ULTIMATE.start_main_~main__urilen~0 1000000) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (<= ULTIMATE.start_main_~main__scheme~0 1000000) (<= ULTIMATE.start_main_~main__tokenlen~0 1000000) (= (select |#valid| |#t~string6.base|) 1) (= 41 (select |#length| |#t~string5.base|)) (= (select |#valid| 0) 0) (< |#StackHeapBarrier| |#t~string4.base|) (= (select |#length| |#t~string6.base|) 12) (= (select .cse5 (+ 1 |#t~string4.offset|)) 0) (= |#NULL.offset| 0) (= |#t~string6.offset| 0) (= (select |#length| |#t~string4.base|) 2) (= (select .cse5 |#t~string4.offset|) 48) (= ~__return_main~0 0) (= ~__return_375~0 0) (< ULTIMATE.start_main_~main__cp~0 ULTIMATE.start_main_~main__urilen~0) (= 0 |#t~string4.offset|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2021-11-07 01:43:55,826 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 354) no Hoare annotation was computed. [2021-11-07 01:43:55,826 INFO L857 garLoopResultBuilder]: For program point L95(lines 95 412) no Hoare annotation was computed. [2021-11-07 01:43:55,826 INFO L857 garLoopResultBuilder]: For program point L29(lines 29 437) no Hoare annotation was computed. [2021-11-07 01:43:55,826 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2021-11-07 01:43:55,826 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-07 01:43:55,826 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 296) no Hoare annotation was computed. [2021-11-07 01:43:55,827 INFO L853 garLoopResultBuilder]: At program point L327(lines 262 328) the Hoare annotation is: (and (= ULTIMATE.start_main_~__VERIFIER_assert__cond~10 1) (let ((.cse0 (let ((.cse1 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~7 0))) (.cse2 (<= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~4)) (.cse3 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~11 0))) (.cse4 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~8 0))) (.cse5 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0))) (.cse6 (< 0 ULTIMATE.start_main_~main__scheme~0)) (.cse7 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~6 0))) (.cse8 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~1 0))) (.cse9 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 0))) (.cse10 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~5 0))) (.cse11 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~3 1)) (.cse12 (<= 1 ULTIMATE.start_main_~main__cp~0))) (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= (+ ULTIMATE.start_main_~main__c~0 2) ULTIMATE.start_main_~main__tokenlen~0) .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~12 0)) .cse11 .cse12))))) (or (and (= ULTIMATE.start_main_~main__c~0 0) .cse0) (and (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~13 0)) .cse0 (<= 1 ULTIMATE.start_main_~main__c~0)))) (= ULTIMATE.start_main_~__VERIFIER_assert__cond~9 1) (< (+ ULTIMATE.start_main_~main__cp~0 1) ULTIMATE.start_main_~main__urilen~0)) [2021-11-07 01:43:55,827 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 318) no Hoare annotation was computed. [2021-11-07 01:43:55,827 INFO L857 garLoopResultBuilder]: For program point L162(lines 162 359) no Hoare annotation was computed. [2021-11-07 01:43:55,827 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 422) no Hoare annotation was computed. [2021-11-07 01:43:55,827 INFO L853 garLoopResultBuilder]: At program point L410(lines 104 411) the Hoare annotation is: (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 0)) [2021-11-07 01:43:55,828 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 346) no Hoare annotation was computed. [2021-11-07 01:43:55,828 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-07 01:43:55,828 INFO L857 garLoopResultBuilder]: For program point L47(lines 47 434) no Hoare annotation was computed. [2021-11-07 01:43:55,828 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 328) no Hoare annotation was computed. [2021-11-07 01:43:55,828 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-11-07 01:43:55,828 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2021-11-07 01:43:55,828 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 374) no Hoare annotation was computed. [2021-11-07 01:43:55,829 INFO L857 garLoopResultBuilder]: For program point L296(line 296) no Hoare annotation was computed. [2021-11-07 01:43:55,829 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 417) no Hoare annotation was computed. [2021-11-07 01:43:55,829 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 85) no Hoare annotation was computed. [2021-11-07 01:43:55,829 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-11-07 01:43:55,829 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 414) no Hoare annotation was computed. [2021-11-07 01:43:55,830 INFO L853 garLoopResultBuilder]: At program point L315(lines 230 344) the Hoare annotation is: (let ((.cse2 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~7 0))) (.cse3 (<= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~4)) (.cse1 (= ULTIMATE.start_main_~main__c~0 0)) (.cse6 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0))) (.cse7 (< 0 ULTIMATE.start_main_~main__scheme~0)) (.cse8 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~6 0))) (.cse9 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~1 0))) (.cse10 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 0))) (.cse11 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~5 0))) (.cse12 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~3 1)) (.cse13 (<= 1 ULTIMATE.start_main_~main__cp~0)) (.cse14 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~9 1))) (or (and (<= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~10) (let ((.cse0 (let ((.cse4 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~11 0))) (.cse5 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~8 0))) (.cse15 (< ULTIMATE.start_main_~main__cp~0 ULTIMATE.start_main_~main__urilen~0))) (or (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (+ ULTIMATE.start_main_~main__c~0 2) ULTIMATE.start_main_~main__tokenlen~0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~12 0)) .cse12 .cse13 .cse14 .cse15))))) (or (and (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~13 0)) .cse0 (<= 1 ULTIMATE.start_main_~main__c~0)) (and .cse1 .cse0)))) (and .cse2 .cse3 .cse1 .cse6 .cse7 .cse8 .cse9 .cse10 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~8 1) .cse11 .cse12 .cse13 .cse14 (< (+ ULTIMATE.start_main_~main__cp~0 1) ULTIMATE.start_main_~main__urilen~0)))) [2021-11-07 01:43:55,830 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 243) no Hoare annotation was computed. [2021-11-07 01:43:55,830 INFO L857 garLoopResultBuilder]: For program point L282(lines 282 320) no Hoare annotation was computed. [2021-11-07 01:43:55,830 INFO L860 garLoopResultBuilder]: At program point L431(lines 13 439) the Hoare annotation is: true [2021-11-07 01:43:55,830 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 436) no Hoare annotation was computed. [2021-11-07 01:43:55,833 INFO L731 BasicCegarLoop]: Path program 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] [2021-11-07 01:43:55,835 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:43:55,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:43:55 BoogieIcfgContainer [2021-11-07 01:43:55,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:43:55,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:43:55,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:43:55,878 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:43:55,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:42:56" (3/4) ... [2021-11-07 01:43:55,881 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:43:55,895 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-07 01:43:55,896 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 01:43:55,896 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:43:55,897 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:43:55,961 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:43:55,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:43:55,962 INFO L168 Benchmark]: Toolchain (without parser) took 59998.23 ms. Allocated memory was 109.1 MB in the beginning and 197.1 MB in the end (delta: 88.1 MB). Free memory was 81.9 MB in the beginning and 121.8 MB in the end (delta: -39.9 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:43:55,962 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 109.1 MB. Free memory is still 67.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:43:55,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.76 ms. Allocated memory is still 109.1 MB. Free memory was 81.7 MB in the beginning and 74.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:43:55,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.44 ms. Allocated memory is still 109.1 MB. Free memory was 74.5 MB in the beginning and 72.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:43:55,963 INFO L168 Benchmark]: Boogie Preprocessor took 41.26 ms. Allocated memory is still 109.1 MB. Free memory was 72.5 MB in the beginning and 71.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:43:55,963 INFO L168 Benchmark]: RCFGBuilder took 502.11 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 53.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:43:55,964 INFO L168 Benchmark]: TraceAbstraction took 58918.16 ms. Allocated memory was 109.1 MB in the beginning and 197.1 MB in the end (delta: 88.1 MB). Free memory was 53.4 MB in the beginning and 129.1 MB in the end (delta: -75.7 MB). Peak memory consumption was 92.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:43:55,964 INFO L168 Benchmark]: Witness Printer took 83.70 ms. Allocated memory is still 197.1 MB. Free memory was 129.1 MB in the beginning and 121.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:43:55,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 109.1 MB. Free memory is still 67.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.76 ms. Allocated memory is still 109.1 MB. Free memory was 81.7 MB in the beginning and 74.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.44 ms. Allocated memory is still 109.1 MB. Free memory was 74.5 MB in the beginning and 72.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.26 ms. Allocated memory is still 109.1 MB. Free memory was 72.5 MB in the beginning and 71.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 502.11 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 53.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 58918.16 ms. Allocated memory was 109.1 MB in the beginning and 197.1 MB in the end (delta: 88.1 MB). Free memory was 53.4 MB in the beginning and 129.1 MB in the end (delta: -75.7 MB). Peak memory consumption was 92.4 MB. Max. memory is 16.1 GB. * Witness Printer took 83.70 ms. Allocated memory is still 197.1 MB. Free memory was 129.1 MB in the beginning and 121.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * 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: 85]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 97]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 113]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 189]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 214]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 226]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 243]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 255]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 272]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 284]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 296]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 308]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 374]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 386]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 58.7s, OverallIterations: 24, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1231 SDtfs, 2370 SDslu, 1522 SDs, 0 SdLazy, 1518 SolverSat, 145 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 576 GetRequests, 305 SyntacticMatches, 32 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 44.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 167, 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, 24 MinimizatonAttempts, 359 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 16 NumberOfFragments, 874 HoareAnnotationTreeSize, 6 FomulaSimplifications, 1551825 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 6 FomulaSimplificationsInter, 45482 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 811 NumberOfCodeBlocks, 811 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 912 ConstructedInterpolants, 0 QuantifiedInterpolants, 2162 SizeOfPredicates, 16 NumberOfNonLiveVariables, 556 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 32 InterpolantComputations, 20 PerfectInterpolantSequences, 17/44 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: OVERALL_TIME[ms]: 1122, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 36, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 43, TOOLS_POST_TIME[ms]: 295, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 43, TOOLS_QUANTIFIERELIM_TIME[ms]: 280, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 79, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 82, FLUID_YES_ANSWERS: 2, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME[ms]: 378, DOMAIN_ALPHA_APPLICATIONS: 2, DOMAIN_ALPHA_TIME[ms]: 332, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 3, DOMAIN_ISBOTTOM_APPLICATIONS: 36, DOMAIN_ISBOTTOM_TIME[ms]: 82, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 84, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 84, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 1, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 1, DAG_COMPRESSION_TIME[ms]: 12, DAG_COMPRESSION_PROCESSED_NODES: 790, DAG_COMPRESSION_RETAINED_NODES: 87, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 230]: Loop Invariant Derived loop invariant: (1 <= __VERIFIER_assert__cond && (((!(__VERIFIER_assert__cond == 0) && (((((((((((((((!(__VERIFIER_assert__cond == 0) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && main__c + 2 <= main__tokenlen) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && main__cp < main__urilen) || ((((((((((((((!(__VERIFIER_assert__cond == 0) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && main__cp < main__urilen))) && 1 <= main__c) || (main__c == 0 && (((((((((((((((!(__VERIFIER_assert__cond == 0) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && main__c + 2 <= main__tokenlen) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && main__cp < main__urilen) || ((((((((((((((!(__VERIFIER_assert__cond == 0) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && main__cp < main__urilen))))) || (((((((((((((!(__VERIFIER_assert__cond == 0) && 1 <= __VERIFIER_assert__cond) && main__c == 0) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && main__cp + 1 < main__urilen) - InvariantResult [Line: 262]: Loop Invariant Derived loop invariant: ((__VERIFIER_assert__cond == 1 && ((main__c == 0 && (((((((((((((!(__VERIFIER_assert__cond == 0) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && main__c + 2 <= main__tokenlen) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) || ((((((((((((!(__VERIFIER_assert__cond == 0) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp))) || ((!(__VERIFIER_assert__cond == 0) && (((((((((((((!(__VERIFIER_assert__cond == 0) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && main__c + 2 <= main__tokenlen) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) || ((((((((((((!(__VERIFIER_assert__cond == 0) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp))) && 1 <= main__c))) && __VERIFIER_assert__cond == 1) && main__cp + 1 < main__urilen - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((unknown-#StackHeapBarrier-unknown < "reach_error" && 0 < main__tokenlen) && ((((((((!(__VERIFIER_assert__cond == 0) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) || (((((__VERIFIER_assert__cond == 1 && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp))) && unknown-#StackHeapBarrier-unknown < "apache-escape-absolute.i.v+cfa-reducer.c") && main__urilen <= 1000000) && \valid["apache-escape-absolute.i.v+cfa-reducer.c"] == 1) && \valid["0"] == 1) && "apache-escape-absolute.i.v+cfa-reducer.c" == 0) && main__scheme <= 1000000) && main__tokenlen <= 1000000) && \valid["reach_error"] == 1) && 41 == unknown-#length-unknown["apache-escape-absolute.i.v+cfa-reducer.c"]) && \valid[0] == 0) && unknown-#StackHeapBarrier-unknown < "0") && unknown-#length-unknown["reach_error"] == 12) && unknown-#memory_int-unknown["0"][1 + "0"] == 0) && #NULL == 0) && "reach_error" == 0) && unknown-#length-unknown["0"] == 2) && unknown-#memory_int-unknown["0"]["0"] == 48) && __return_main == 0) && __return_375 == 0) && main__cp < main__urilen) && 0 == "0") && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (((main__cp + 1 == main__urilen && (((((__VERIFIER_assert__cond == 1 && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) || (((((!(__VERIFIER_assert__cond == 0) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp))) && __VERIFIER_assert__cond == 1) && main__cp < main__urilen) || ((((((((((((((((((((((((((unknown-#StackHeapBarrier-unknown < "reach_error" && 0 < main__tokenlen) && unknown-#StackHeapBarrier-unknown < "apache-escape-absolute.i.v+cfa-reducer.c") && main__urilen <= 1000000) && \valid["apache-escape-absolute.i.v+cfa-reducer.c"] == 1) && \valid["0"] == 1) && "apache-escape-absolute.i.v+cfa-reducer.c" == 0) && main__scheme <= 1000000) && main__tokenlen <= 1000000) && \valid["reach_error"] == 1) && (((((__VERIFIER_assert__cond == 1 && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) || (((((!(__VERIFIER_assert__cond == 0) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp))) && 41 == unknown-#length-unknown["apache-escape-absolute.i.v+cfa-reducer.c"]) && \valid[0] == 0) && unknown-#StackHeapBarrier-unknown < "0") && unknown-#length-unknown["reach_error"] == 12) && unknown-#memory_int-unknown["0"][1 + "0"] == 0) && __VERIFIER_assert__cond == 1) && #NULL == 0) && "reach_error" == 0) && unknown-#length-unknown["0"] == 2) && unknown-#memory_int-unknown["0"]["0"] == 48) && __return_main == 0) && __return_375 == 0) && main__cp < main__urilen) && 0 == "0") && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2021-11-07 01:43:56,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fed1035-7677-45a9-bdee-7aedc4507e6a/bin/utaipan-UUZaoUuFF8/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