./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7 --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 f8b90978b682a83c8f6f0d2fe75b83e30918fdef6451144e6a40fff2a4b9e706 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:34:05,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:34:05,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:34:05,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:34:05,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:34:05,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:34:05,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:34:05,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:34:05,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:34:05,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:34:05,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:34:05,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:34:05,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:34:05,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:34:05,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:34:05,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:34:05,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:34:05,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:34:05,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:34:05,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:34:05,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:34:05,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:34:05,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:34:05,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:34:05,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:34:05,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:34:05,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:34:05,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:34:05,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:34:05,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:34:05,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:34:05,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:34:05,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:34:05,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:34:05,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:34:05,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:34:05,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:34:05,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:34:05,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:34:05,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:34:05,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:34:05,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:34:06,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:34:06,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:34:06,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:34:06,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:34:06,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:34:06,027 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:34:06,027 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:34:06,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:34:06,028 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:34:06,028 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:34:06,028 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:34:06,028 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:34:06,028 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:34:06,029 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:34:06,029 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:34:06,029 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:34:06,029 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:34:06,030 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:34:06,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:34:06,030 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:34:06,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:34:06,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:34:06,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:34:06,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:34:06,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:34:06,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:34:06,032 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:34:06,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:34:06,032 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:34:06,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:34:06,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:34:06,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:34:06,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:34:06,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:34:06,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:34:06,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:34:06,034 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:34:06,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:34:06,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:34:06,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:34:06,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:34:06,035 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8b90978b682a83c8f6f0d2fe75b83e30918fdef6451144e6a40fff2a4b9e706 [2021-11-25 19:34:06,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:34:06,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:34:06,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:34:06,305 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:34:06,307 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:34:06,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c [2021-11-25 19:34:06,371 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/data/b86a63624/2a2e8be860364cd3a37b69869d9a3002/FLAG22abe5a0e [2021-11-25 19:34:07,419 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:34:07,420 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c [2021-11-25 19:34:07,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/data/b86a63624/2a2e8be860364cd3a37b69869d9a3002/FLAG22abe5a0e [2021-11-25 19:34:07,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/data/b86a63624/2a2e8be860364cd3a37b69869d9a3002 [2021-11-25 19:34:07,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:34:07,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:34:07,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:34:07,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:34:07,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:34:07,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:34:07" (1/1) ... [2021-11-25 19:34:07,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f24c502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:07, skipping insertion in model container [2021-11-25 19:34:07,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:34:07" (1/1) ... [2021-11-25 19:34:07,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:34:08,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:34:09,762 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[172160,172173] [2021-11-25 19:34:10,142 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[250199,250212] [2021-11-25 19:34:10,296 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[289422,289435] [2021-11-25 19:34:10,375 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[309133,309146] [2021-11-25 19:34:10,415 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[319011,319024] [2021-11-25 19:34:10,435 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[323922,323935] [2021-11-25 19:34:10,455 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[328750,328763] [2021-11-25 19:34:10,714 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[405185,405198] [2021-11-25 19:34:10,846 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[443553,443566] [2021-11-25 19:34:10,993 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[463065,463078] [2021-11-25 19:34:11,083 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[472989,473002] [2021-11-25 19:34:11,104 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[477943,477956] [2021-11-25 19:34:11,123 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[482814,482827] [2021-11-25 19:34:11,264 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[521320,521333] [2021-11-25 19:34:11,335 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[540838,540851] [2021-11-25 19:34:11,372 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[550762,550775] [2021-11-25 19:34:11,394 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[555716,555729] [2021-11-25 19:34:11,413 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[560575,560588] [2021-11-25 19:34:11,491 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[581321,581334] [2021-11-25 19:34:11,530 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[591188,591201] [2021-11-25 19:34:11,550 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[596115,596128] [2021-11-25 19:34:11,570 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[600957,600970] [2021-11-25 19:34:11,591 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[606379,606392] [2021-11-25 19:34:11,610 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[611215,611228] [2021-11-25 19:34:11,629 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[616142,616155] [2021-11-25 19:34:11,649 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[620984,620997] [2021-11-25 19:34:11,669 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[626027,626040] [2021-11-25 19:34:11,689 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[631036,631049] [2021-11-25 19:34:11,709 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[635974,635987] [2021-11-25 19:34:11,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:34:11,795 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:34:12,845 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[172160,172173] [2021-11-25 19:34:13,080 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[250199,250212] [2021-11-25 19:34:13,202 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[289422,289435] [2021-11-25 19:34:13,263 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[309133,309146] [2021-11-25 19:34:13,296 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[319011,319024] [2021-11-25 19:34:13,313 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[323922,323935] [2021-11-25 19:34:13,331 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[328750,328763] [2021-11-25 19:34:13,552 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[405185,405198] [2021-11-25 19:34:13,672 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[443553,443566] [2021-11-25 19:34:13,731 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[463065,463078] [2021-11-25 19:34:13,765 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[472989,473002] [2021-11-25 19:34:13,783 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[477943,477956] [2021-11-25 19:34:13,800 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[482814,482827] [2021-11-25 19:34:13,972 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[521320,521333] [2021-11-25 19:34:14,032 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[540838,540851] [2021-11-25 19:34:14,065 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[550762,550775] [2021-11-25 19:34:14,083 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[555716,555729] [2021-11-25 19:34:14,099 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[560575,560588] [2021-11-25 19:34:14,166 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[581321,581334] [2021-11-25 19:34:14,199 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[591188,591201] [2021-11-25 19:34:14,216 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[596115,596128] [2021-11-25 19:34:14,233 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[600957,600970] [2021-11-25 19:34:14,252 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[606379,606392] [2021-11-25 19:34:14,274 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[611215,611228] [2021-11-25 19:34:14,293 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[616142,616155] [2021-11-25 19:34:14,310 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[620984,620997] [2021-11-25 19:34:14,328 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[626027,626040] [2021-11-25 19:34:14,345 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[631036,631049] [2021-11-25 19:34:14,361 WARN L230 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_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[635974,635987] [2021-11-25 19:34:14,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:34:14,448 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:34:14,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14 WrapperNode [2021-11-25 19:34:14,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:34:14,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:34:14,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:34:14,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:34:14,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (1/1) ... [2021-11-25 19:34:14,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (1/1) ... [2021-11-25 19:34:14,970 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26578 [2021-11-25 19:34:14,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:34:14,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:34:14,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:34:14,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:34:14,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (1/1) ... [2021-11-25 19:34:14,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (1/1) ... [2021-11-25 19:34:15,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (1/1) ... [2021-11-25 19:34:15,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (1/1) ... [2021-11-25 19:34:15,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (1/1) ... [2021-11-25 19:34:15,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (1/1) ... [2021-11-25 19:34:15,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (1/1) ... [2021-11-25 19:34:15,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:34:15,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:34:15,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:34:15,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:34:15,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (1/1) ... [2021-11-25 19:34:15,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:34:15,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:34:15,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:34:15,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:34:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:34:15,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:34:15,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:34:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:34:16,454 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:34:16,459 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:34:27,088 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:34:28,594 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:34:28,594 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 19:34:28,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:34:28 BoogieIcfgContainer [2021-11-25 19:34:28,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:34:28,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:34:28,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:34:28,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:34:28,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:34:07" (1/3) ... [2021-11-25 19:34:28,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7f6813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:34:28, skipping insertion in model container [2021-11-25 19:34:28,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:34:14" (2/3) ... [2021-11-25 19:34:28,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7f6813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:34:28, skipping insertion in model container [2021-11-25 19:34:28,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:34:28" (3/3) ... [2021-11-25 19:34:28,612 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c [2021-11-25 19:34:28,618 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:34:28,618 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-25 19:34:28,698 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:34:28,704 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 [2021-11-25 19:34:28,704 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-25 19:34:28,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 5383 states, 5353 states have (on average 1.7498598916495423) internal successors, (9367), 5382 states have internal predecessors, (9367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-25 19:34:28,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:28,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:28,866 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:28,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:28,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1843961460, now seen corresponding path program 1 times [2021-11-25 19:34:28,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:28,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258534561] [2021-11-25 19:34:28,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:28,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:29,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:29,692 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:29,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258534561] [2021-11-25 19:34:29,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258534561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:29,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:29,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:34:29,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757180898] [2021-11-25 19:34:29,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:29,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:34:29,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:29,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:34:29,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:34:29,767 INFO L87 Difference]: Start difference. First operand has 5383 states, 5353 states have (on average 1.7498598916495423) internal successors, (9367), 5382 states have internal predecessors, (9367), 0 states have call successors, (0), 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 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:34,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:34,871 INFO L93 Difference]: Finished difference Result 7347 states and 12579 transitions. [2021-11-25 19:34:34,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:34:34,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2021-11-25 19:34:34,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:34,925 INFO L225 Difference]: With dead ends: 7347 [2021-11-25 19:34:34,925 INFO L226 Difference]: Without dead ends: 4869 [2021-11-25 19:34:34,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:34:34,950 INFO L933 BasicCegarLoop]: 4188 mSDtfsCounter, 24376 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4070 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24376 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 4329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 4070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:34,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24376 Valid, 4292 Invalid, 4329 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [259 Valid, 4070 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-25 19:34:34,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2021-11-25 19:34:35,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4869. [2021-11-25 19:34:35,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 4840 states have (on average 1.2913223140495869) internal successors, (6250), 4868 states have internal predecessors, (6250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:35,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 6250 transitions. [2021-11-25 19:34:35,227 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 6250 transitions. Word has length 101 [2021-11-25 19:34:35,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:35,228 INFO L470 AbstractCegarLoop]: Abstraction has 4869 states and 6250 transitions. [2021-11-25 19:34:35,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:35,229 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 6250 transitions. [2021-11-25 19:34:35,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-25 19:34:35,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:35,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:35,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:34:35,244 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:35,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:35,248 INFO L85 PathProgramCache]: Analyzing trace with hash -564189146, now seen corresponding path program 1 times [2021-11-25 19:34:35,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:35,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263507987] [2021-11-25 19:34:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:35,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:35,500 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:35,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263507987] [2021-11-25 19:34:35,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263507987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:35,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:35,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:34:35,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505480716] [2021-11-25 19:34:35,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:35,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:34:35,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:35,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:34:35,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:34:35,503 INFO L87 Difference]: Start difference. First operand 4869 states and 6250 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:38,348 INFO L93 Difference]: Finished difference Result 5963 states and 7638 transitions. [2021-11-25 19:34:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:34:38,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2021-11-25 19:34:38,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:38,370 INFO L225 Difference]: With dead ends: 5963 [2021-11-25 19:34:38,371 INFO L226 Difference]: Without dead ends: 3569 [2021-11-25 19:34:38,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:34:38,376 INFO L933 BasicCegarLoop]: 2086 mSDtfsCounter, 13707 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 2545 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13707 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:38,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13707 Valid, 2106 Invalid, 2648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2545 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-25 19:34:38,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2021-11-25 19:34:38,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 3569. [2021-11-25 19:34:38,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3569 states, 3540 states have (on average 1.3076271186440678) internal successors, (4629), 3568 states have internal predecessors, (4629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3569 states to 3569 states and 4629 transitions. [2021-11-25 19:34:38,634 INFO L78 Accepts]: Start accepts. Automaton has 3569 states and 4629 transitions. Word has length 101 [2021-11-25 19:34:38,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:38,635 INFO L470 AbstractCegarLoop]: Abstraction has 3569 states and 4629 transitions. [2021-11-25 19:34:38,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:38,635 INFO L276 IsEmpty]: Start isEmpty. Operand 3569 states and 4629 transitions. [2021-11-25 19:34:38,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-25 19:34:38,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:38,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:38,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:34:38,645 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:38,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:38,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1247482897, now seen corresponding path program 1 times [2021-11-25 19:34:38,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:38,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68842001] [2021-11-25 19:34:38,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:38,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:38,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:38,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68842001] [2021-11-25 19:34:38,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68842001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:38,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:38,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:34:38,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812576009] [2021-11-25 19:34:38,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:38,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:34:38,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:38,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:34:38,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:34:38,821 INFO L87 Difference]: Start difference. First operand 3569 states and 4629 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:40,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:40,767 INFO L93 Difference]: Finished difference Result 4375 states and 5632 transitions. [2021-11-25 19:34:40,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:34:40,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2021-11-25 19:34:40,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:40,781 INFO L225 Difference]: With dead ends: 4375 [2021-11-25 19:34:40,782 INFO L226 Difference]: Without dead ends: 2637 [2021-11-25 19:34:40,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:34:40,786 INFO L933 BasicCegarLoop]: 1578 mSDtfsCounter, 10130 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10130 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:40,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10130 Valid, 1606 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 19:34:40,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2021-11-25 19:34:40,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2637. [2021-11-25 19:34:40,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 2608 states have (on average 1.3190184049079754) internal successors, (3440), 2636 states have internal predecessors, (3440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:40,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 3440 transitions. [2021-11-25 19:34:40,906 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 3440 transitions. Word has length 101 [2021-11-25 19:34:40,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:40,907 INFO L470 AbstractCegarLoop]: Abstraction has 2637 states and 3440 transitions. [2021-11-25 19:34:40,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:40,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 3440 transitions. [2021-11-25 19:34:40,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 19:34:40,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:40,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:40,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:34:40,919 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:40,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:40,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1413940705, now seen corresponding path program 1 times [2021-11-25 19:34:40,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:40,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869798225] [2021-11-25 19:34:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:40,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:41,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:41,128 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:41,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869798225] [2021-11-25 19:34:41,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869798225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:41,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:41,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:34:41,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122072329] [2021-11-25 19:34:41,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:41,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:34:41,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:41,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:34:41,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:34:41,131 INFO L87 Difference]: Start difference. First operand 2637 states and 3440 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:43,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:43,864 INFO L93 Difference]: Finished difference Result 5008 states and 6556 transitions. [2021-11-25 19:34:43,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:34:43,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2021-11-25 19:34:43,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:43,887 INFO L225 Difference]: With dead ends: 5008 [2021-11-25 19:34:43,887 INFO L226 Difference]: Without dead ends: 3674 [2021-11-25 19:34:43,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:34:43,895 INFO L933 BasicCegarLoop]: 1567 mSDtfsCounter, 12679 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12679 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:43,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12679 Valid, 2372 Invalid, 2562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2519 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 19:34:43,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2021-11-25 19:34:44,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3475. [2021-11-25 19:34:44,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 3446 states have (on average 1.3482298316889147) internal successors, (4646), 3474 states have internal predecessors, (4646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:44,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 4646 transitions. [2021-11-25 19:34:44,113 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 4646 transitions. Word has length 103 [2021-11-25 19:34:44,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:44,114 INFO L470 AbstractCegarLoop]: Abstraction has 3475 states and 4646 transitions. [2021-11-25 19:34:44,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:44,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 4646 transitions. [2021-11-25 19:34:44,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-25 19:34:44,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:44,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:44,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:34:44,125 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:44,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:44,126 INFO L85 PathProgramCache]: Analyzing trace with hash -2001631897, now seen corresponding path program 1 times [2021-11-25 19:34:44,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:44,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640808726] [2021-11-25 19:34:44,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:44,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:44,355 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:44,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640808726] [2021-11-25 19:34:44,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640808726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:44,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:44,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:34:44,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333438710] [2021-11-25 19:34:44,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:44,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:34:44,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:44,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:34:44,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:34:44,358 INFO L87 Difference]: Start difference. First operand 3475 states and 4646 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:46,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:46,096 INFO L93 Difference]: Finished difference Result 5020 states and 6717 transitions. [2021-11-25 19:34:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:34:46,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-11-25 19:34:46,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:46,119 INFO L225 Difference]: With dead ends: 5020 [2021-11-25 19:34:46,119 INFO L226 Difference]: Without dead ends: 3252 [2021-11-25 19:34:46,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:34:46,124 INFO L933 BasicCegarLoop]: 1462 mSDtfsCounter, 8923 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1547 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8923 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:46,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8923 Valid, 1474 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1547 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 19:34:46,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2021-11-25 19:34:46,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 3252. [2021-11-25 19:34:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 3223 states have (on average 1.3555693453304374) internal successors, (4369), 3251 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:46,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 4369 transitions. [2021-11-25 19:34:46,322 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 4369 transitions. Word has length 105 [2021-11-25 19:34:46,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:46,324 INFO L470 AbstractCegarLoop]: Abstraction has 3252 states and 4369 transitions. [2021-11-25 19:34:46,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 4369 transitions. [2021-11-25 19:34:46,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-25 19:34:46,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:46,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:46,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:34:46,333 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:46,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:46,334 INFO L85 PathProgramCache]: Analyzing trace with hash -807434659, now seen corresponding path program 1 times [2021-11-25 19:34:46,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:46,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466002078] [2021-11-25 19:34:46,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:46,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:46,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:46,509 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:46,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466002078] [2021-11-25 19:34:46,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466002078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:46,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:46,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:34:46,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100891883] [2021-11-25 19:34:46,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:46,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:34:46,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:46,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:34:46,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:34:46,512 INFO L87 Difference]: Start difference. First operand 3252 states and 4369 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:47,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:47,445 INFO L93 Difference]: Finished difference Result 3585 states and 4737 transitions. [2021-11-25 19:34:47,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:34:47,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2021-11-25 19:34:47,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:47,465 INFO L225 Difference]: With dead ends: 3585 [2021-11-25 19:34:47,465 INFO L226 Difference]: Without dead ends: 2045 [2021-11-25 19:34:47,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:34:47,473 INFO L933 BasicCegarLoop]: 906 mSDtfsCounter, 5358 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5358 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:47,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5358 Valid, 950 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:34:47,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2021-11-25 19:34:47,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2045. [2021-11-25 19:34:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 2016 states have (on average 1.3611111111111112) internal successors, (2744), 2044 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:47,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2744 transitions. [2021-11-25 19:34:47,600 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2744 transitions. Word has length 107 [2021-11-25 19:34:47,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:47,600 INFO L470 AbstractCegarLoop]: Abstraction has 2045 states and 2744 transitions. [2021-11-25 19:34:47,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:47,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2744 transitions. [2021-11-25 19:34:47,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-25 19:34:47,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:47,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:47,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:34:47,609 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:47,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:47,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1740881091, now seen corresponding path program 1 times [2021-11-25 19:34:47,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:47,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563292523] [2021-11-25 19:34:47,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:47,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:47,787 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:47,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563292523] [2021-11-25 19:34:47,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563292523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:47,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:47,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:34:47,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557235112] [2021-11-25 19:34:47,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:47,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:34:47,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:47,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:34:47,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:34:47,790 INFO L87 Difference]: Start difference. First operand 2045 states and 2744 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:48,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:48,451 INFO L93 Difference]: Finished difference Result 2651 states and 3518 transitions. [2021-11-25 19:34:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:34:48,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2021-11-25 19:34:48,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:48,463 INFO L225 Difference]: With dead ends: 2651 [2021-11-25 19:34:48,463 INFO L226 Difference]: Without dead ends: 1617 [2021-11-25 19:34:48,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:34:48,466 INFO L933 BasicCegarLoop]: 793 mSDtfsCounter, 4252 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4252 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:48,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4252 Valid, 829 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 19:34:48,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2021-11-25 19:34:48,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2021-11-25 19:34:48,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.369647355163728) internal successors, (2175), 1616 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:48,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2175 transitions. [2021-11-25 19:34:48,575 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2175 transitions. Word has length 109 [2021-11-25 19:34:48,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:48,576 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2175 transitions. [2021-11-25 19:34:48,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:48,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2175 transitions. [2021-11-25 19:34:48,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-25 19:34:48,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:48,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:48,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:34:48,581 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:48,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:48,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1649960662, now seen corresponding path program 1 times [2021-11-25 19:34:48,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:48,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247621090] [2021-11-25 19:34:48,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:48,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:48,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:48,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:48,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247621090] [2021-11-25 19:34:48,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247621090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:48,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:48,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:34:48,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166371369] [2021-11-25 19:34:48,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:48,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:34:48,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:48,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:34:48,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:34:48,908 INFO L87 Difference]: Start difference. First operand 1617 states and 2175 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:50,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:50,999 INFO L93 Difference]: Finished difference Result 2684 states and 3579 transitions. [2021-11-25 19:34:50,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:34:51,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-11-25 19:34:51,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:51,012 INFO L225 Difference]: With dead ends: 2684 [2021-11-25 19:34:51,012 INFO L226 Difference]: Without dead ends: 2347 [2021-11-25 19:34:51,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:34:51,015 INFO L933 BasicCegarLoop]: 887 mSDtfsCounter, 4453 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 2898 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4453 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:51,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4453 Valid, 3599 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2898 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 19:34:51,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2021-11-25 19:34:51,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 1617. [2021-11-25 19:34:51,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3690176322418135) internal successors, (2174), 1616 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:51,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2174 transitions. [2021-11-25 19:34:51,198 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2174 transitions. Word has length 111 [2021-11-25 19:34:51,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:51,198 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2174 transitions. [2021-11-25 19:34:51,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:51,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2174 transitions. [2021-11-25 19:34:51,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-25 19:34:51,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:51,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:51,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:34:51,204 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:51,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:51,205 INFO L85 PathProgramCache]: Analyzing trace with hash 258839018, now seen corresponding path program 1 times [2021-11-25 19:34:51,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:51,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875383229] [2021-11-25 19:34:51,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:51,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:51,449 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:51,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875383229] [2021-11-25 19:34:51,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875383229] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:51,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:51,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:34:51,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315385900] [2021-11-25 19:34:51,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:51,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:34:51,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:51,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:34:51,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:34:51,453 INFO L87 Difference]: Start difference. First operand 1617 states and 2174 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:53,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:53,451 INFO L93 Difference]: Finished difference Result 2834 states and 3781 transitions. [2021-11-25 19:34:53,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:34:53,451 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-11-25 19:34:53,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:53,464 INFO L225 Difference]: With dead ends: 2834 [2021-11-25 19:34:53,464 INFO L226 Difference]: Without dead ends: 2693 [2021-11-25 19:34:53,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:34:53,466 INFO L933 BasicCegarLoop]: 876 mSDtfsCounter, 4031 mSDsluCounter, 2895 mSDsCounter, 0 mSdLazyCounter, 3028 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4031 SdHoareTripleChecker+Valid, 3764 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:53,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4031 Valid, 3764 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3028 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 19:34:53,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2021-11-25 19:34:53,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1617. [2021-11-25 19:34:53,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3683879093198992) internal successors, (2173), 1616 states have internal predecessors, (2173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:53,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2173 transitions. [2021-11-25 19:34:53,624 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2173 transitions. Word has length 111 [2021-11-25 19:34:53,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:53,625 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2173 transitions. [2021-11-25 19:34:53,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:53,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2173 transitions. [2021-11-25 19:34:53,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-25 19:34:53,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:53,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:53,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:34:53,630 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:53,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:53,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1796391338, now seen corresponding path program 1 times [2021-11-25 19:34:53,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:53,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93980140] [2021-11-25 19:34:53,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:53,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:53,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:53,883 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:53,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93980140] [2021-11-25 19:34:53,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93980140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:53,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:53,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 19:34:53,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870761210] [2021-11-25 19:34:53,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:53,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 19:34:53,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:53,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 19:34:53,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-25 19:34:53,885 INFO L87 Difference]: Start difference. First operand 1617 states and 2173 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:55,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:55,992 INFO L93 Difference]: Finished difference Result 2930 states and 3926 transitions. [2021-11-25 19:34:55,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 19:34:55,992 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-11-25 19:34:55,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:55,999 INFO L225 Difference]: With dead ends: 2930 [2021-11-25 19:34:55,999 INFO L226 Difference]: Without dead ends: 2709 [2021-11-25 19:34:56,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2021-11-25 19:34:56,002 INFO L933 BasicCegarLoop]: 890 mSDtfsCounter, 6441 mSDsluCounter, 3752 mSDsCounter, 0 mSdLazyCounter, 3685 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6441 SdHoareTripleChecker+Valid, 4633 SdHoareTripleChecker+Invalid, 3751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:56,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6441 Valid, 4633 Invalid, 3751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3685 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 19:34:56,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2021-11-25 19:34:56,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 1617. [2021-11-25 19:34:56,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3671284634760705) internal successors, (2171), 1616 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:56,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2171 transitions. [2021-11-25 19:34:56,154 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2171 transitions. Word has length 111 [2021-11-25 19:34:56,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:56,154 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2171 transitions. [2021-11-25 19:34:56,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2171 transitions. [2021-11-25 19:34:56,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-25 19:34:56,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:56,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:56,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 19:34:56,159 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:56,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:56,160 INFO L85 PathProgramCache]: Analyzing trace with hash 326600490, now seen corresponding path program 1 times [2021-11-25 19:34:56,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:56,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936227101] [2021-11-25 19:34:56,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:56,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:56,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:56,378 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:56,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936227101] [2021-11-25 19:34:56,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936227101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:56,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:56,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 19:34:56,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070959980] [2021-11-25 19:34:56,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:56,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 19:34:56,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:56,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 19:34:56,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-25 19:34:56,381 INFO L87 Difference]: Start difference. First operand 1617 states and 2171 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:58,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:58,752 INFO L93 Difference]: Finished difference Result 2848 states and 3800 transitions. [2021-11-25 19:34:58,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 19:34:58,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-11-25 19:34:58,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:58,758 INFO L225 Difference]: With dead ends: 2848 [2021-11-25 19:34:58,758 INFO L226 Difference]: Without dead ends: 2685 [2021-11-25 19:34:58,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2021-11-25 19:34:58,760 INFO L933 BasicCegarLoop]: 919 mSDtfsCounter, 5973 mSDsluCounter, 4654 mSDsCounter, 0 mSdLazyCounter, 4431 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5973 SdHoareTripleChecker+Valid, 5562 SdHoareTripleChecker+Invalid, 4528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:58,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5973 Valid, 5562 Invalid, 4528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4431 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-25 19:34:58,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2021-11-25 19:34:58,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1617. [2021-11-25 19:34:58,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3658690176322419) internal successors, (2169), 1616 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:58,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2169 transitions. [2021-11-25 19:34:58,894 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2169 transitions. Word has length 111 [2021-11-25 19:34:58,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:58,895 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2169 transitions. [2021-11-25 19:34:58,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:34:58,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2169 transitions. [2021-11-25 19:34:58,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-25 19:34:58,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:58,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:58,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 19:34:58,899 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:34:58,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:58,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1875669866, now seen corresponding path program 1 times [2021-11-25 19:34:58,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:58,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573816483] [2021-11-25 19:34:58,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:58,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:59,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:34:59,116 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:59,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573816483] [2021-11-25 19:34:59,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573816483] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:59,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:59,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 19:34:59,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025327817] [2021-11-25 19:34:59,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:59,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 19:34:59,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:59,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 19:34:59,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-25 19:34:59,118 INFO L87 Difference]: Start difference. First operand 1617 states and 2169 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:01,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:01,163 INFO L93 Difference]: Finished difference Result 2846 states and 3791 transitions. [2021-11-25 19:35:01,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 19:35:01,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-11-25 19:35:01,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:01,167 INFO L225 Difference]: With dead ends: 2846 [2021-11-25 19:35:01,167 INFO L226 Difference]: Without dead ends: 2685 [2021-11-25 19:35:01,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2021-11-25 19:35:01,168 INFO L933 BasicCegarLoop]: 919 mSDtfsCounter, 6444 mSDsluCounter, 3827 mSDsCounter, 0 mSdLazyCounter, 3790 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6444 SdHoareTripleChecker+Valid, 4737 SdHoareTripleChecker+Invalid, 3906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 3790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:01,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6444 Valid, 4737 Invalid, 3906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 3790 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 19:35:01,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2021-11-25 19:35:01,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1617. [2021-11-25 19:35:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.364609571788413) internal successors, (2167), 1616 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:01,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2167 transitions. [2021-11-25 19:35:01,285 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2167 transitions. Word has length 111 [2021-11-25 19:35:01,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:01,285 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2167 transitions. [2021-11-25 19:35:01,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2167 transitions. [2021-11-25 19:35:01,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-25 19:35:01,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:01,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:01,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 19:35:01,290 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:01,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:01,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1513726294, now seen corresponding path program 1 times [2021-11-25 19:35:01,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:01,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875828594] [2021-11-25 19:35:01,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:01,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:01,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:01,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875828594] [2021-11-25 19:35:01,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875828594] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:01,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:01,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:35:01,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769013085] [2021-11-25 19:35:01,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:01,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:35:01,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:01,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:35:01,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:35:01,490 INFO L87 Difference]: Start difference. First operand 1617 states and 2167 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:03,007 INFO L93 Difference]: Finished difference Result 2746 states and 3532 transitions. [2021-11-25 19:35:03,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:35:03,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-11-25 19:35:03,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:03,011 INFO L225 Difference]: With dead ends: 2746 [2021-11-25 19:35:03,011 INFO L226 Difference]: Without dead ends: 2082 [2021-11-25 19:35:03,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:35:03,013 INFO L933 BasicCegarLoop]: 757 mSDtfsCounter, 5636 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5636 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:03,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5636 Valid, 2325 Invalid, 2185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2115 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-25 19:35:03,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2021-11-25 19:35:03,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1617. [2021-11-25 19:35:03,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3639798488664987) internal successors, (2166), 1616 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2166 transitions. [2021-11-25 19:35:03,209 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2166 transitions. Word has length 111 [2021-11-25 19:35:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:03,210 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2166 transitions. [2021-11-25 19:35:03,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2166 transitions. [2021-11-25 19:35:03,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-25 19:35:03,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:03,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:03,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 19:35:03,214 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:03,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:03,215 INFO L85 PathProgramCache]: Analyzing trace with hash -112789968, now seen corresponding path program 1 times [2021-11-25 19:35:03,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:03,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425603256] [2021-11-25 19:35:03,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:03,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:03,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:03,416 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:03,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425603256] [2021-11-25 19:35:03,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425603256] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:03,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:03,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:03,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419146060] [2021-11-25 19:35:03,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:03,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:03,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:03,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:03,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:03,419 INFO L87 Difference]: Start difference. First operand 1617 states and 2166 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:05,148 INFO L93 Difference]: Finished difference Result 2822 states and 3756 transitions. [2021-11-25 19:35:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:05,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-25 19:35:05,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:05,152 INFO L225 Difference]: With dead ends: 2822 [2021-11-25 19:35:05,152 INFO L226 Difference]: Without dead ends: 2693 [2021-11-25 19:35:05,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:05,154 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 3989 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3989 SdHoareTripleChecker+Valid, 3809 SdHoareTripleChecker+Invalid, 3055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:05,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3989 Valid, 3809 Invalid, 3055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 19:35:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2021-11-25 19:35:05,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1617. [2021-11-25 19:35:05,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3633501259445844) internal successors, (2165), 1616 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:05,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2165 transitions. [2021-11-25 19:35:05,362 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2165 transitions. Word has length 112 [2021-11-25 19:35:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:05,363 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2165 transitions. [2021-11-25 19:35:05,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2165 transitions. [2021-11-25 19:35:05,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-25 19:35:05,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:05,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:05,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 19:35:05,367 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:05,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:05,368 INFO L85 PathProgramCache]: Analyzing trace with hash 362774875, now seen corresponding path program 1 times [2021-11-25 19:35:05,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:05,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502137664] [2021-11-25 19:35:05,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:05,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:05,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:05,606 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:05,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502137664] [2021-11-25 19:35:05,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502137664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:05,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:05,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:05,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064691145] [2021-11-25 19:35:05,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:05,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:05,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:05,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:05,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:05,609 INFO L87 Difference]: Start difference. First operand 1617 states and 2165 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:07,518 INFO L93 Difference]: Finished difference Result 2760 states and 3654 transitions. [2021-11-25 19:35:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:07,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-25 19:35:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:07,522 INFO L225 Difference]: With dead ends: 2760 [2021-11-25 19:35:07,522 INFO L226 Difference]: Without dead ends: 2645 [2021-11-25 19:35:07,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:35:07,524 INFO L933 BasicCegarLoop]: 927 mSDtfsCounter, 5710 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5710 SdHoareTripleChecker+Valid, 3940 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:07,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5710 Valid, 3940 Invalid, 3362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 3182 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 19:35:07,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2021-11-25 19:35:07,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1617. [2021-11-25 19:35:07,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.36272040302267) internal successors, (2164), 1616 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:07,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2164 transitions. [2021-11-25 19:35:07,714 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2164 transitions. Word has length 112 [2021-11-25 19:35:07,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:07,715 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2164 transitions. [2021-11-25 19:35:07,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:07,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2164 transitions. [2021-11-25 19:35:07,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-25 19:35:07,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:07,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:07,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 19:35:07,720 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:07,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:07,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1942312309, now seen corresponding path program 1 times [2021-11-25 19:35:07,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:07,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360511666] [2021-11-25 19:35:07,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:07,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:07,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:07,894 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:07,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360511666] [2021-11-25 19:35:07,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360511666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:07,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:07,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:07,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839816003] [2021-11-25 19:35:07,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:07,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:07,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:07,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:07,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:07,899 INFO L87 Difference]: Start difference. First operand 1617 states and 2164 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:09,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:09,737 INFO L93 Difference]: Finished difference Result 2875 states and 3835 transitions. [2021-11-25 19:35:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:09,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-25 19:35:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:09,744 INFO L225 Difference]: With dead ends: 2875 [2021-11-25 19:35:09,745 INFO L226 Difference]: Without dead ends: 2717 [2021-11-25 19:35:09,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:09,747 INFO L933 BasicCegarLoop]: 882 mSDtfsCounter, 6143 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6143 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 3058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:09,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6143 Valid, 3817 Invalid, 3058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 19:35:09,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2021-11-25 19:35:10,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 1617. [2021-11-25 19:35:10,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3620906801007557) internal successors, (2163), 1616 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2163 transitions. [2021-11-25 19:35:10,086 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2163 transitions. Word has length 112 [2021-11-25 19:35:10,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:10,087 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2163 transitions. [2021-11-25 19:35:10,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:10,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2163 transitions. [2021-11-25 19:35:10,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-25 19:35:10,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:10,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:10,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 19:35:10,090 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:10,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:10,091 INFO L85 PathProgramCache]: Analyzing trace with hash 949221365, now seen corresponding path program 1 times [2021-11-25 19:35:10,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:10,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089976169] [2021-11-25 19:35:10,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:10,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:10,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:10,279 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:10,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089976169] [2021-11-25 19:35:10,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089976169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:10,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:10,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:10,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132101830] [2021-11-25 19:35:10,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:10,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:10,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:10,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:10,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:10,282 INFO L87 Difference]: Start difference. First operand 1617 states and 2163 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:12,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:12,185 INFO L93 Difference]: Finished difference Result 2829 states and 3763 transitions. [2021-11-25 19:35:12,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:12,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-25 19:35:12,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:12,191 INFO L225 Difference]: With dead ends: 2829 [2021-11-25 19:35:12,191 INFO L226 Difference]: Without dead ends: 2693 [2021-11-25 19:35:12,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:12,193 INFO L933 BasicCegarLoop]: 913 mSDtfsCounter, 3919 mSDsluCounter, 3045 mSDsCounter, 0 mSdLazyCounter, 3113 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3919 SdHoareTripleChecker+Valid, 3953 SdHoareTripleChecker+Invalid, 3178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:12,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3919 Valid, 3953 Invalid, 3178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3113 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 19:35:12,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2021-11-25 19:35:12,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1617. [2021-11-25 19:35:12,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3614609571788414) internal successors, (2162), 1616 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2162 transitions. [2021-11-25 19:35:12,424 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2162 transitions. Word has length 112 [2021-11-25 19:35:12,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:12,425 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2162 transitions. [2021-11-25 19:35:12,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2162 transitions. [2021-11-25 19:35:12,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-25 19:35:12,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:12,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:12,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 19:35:12,429 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:12,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:12,430 INFO L85 PathProgramCache]: Analyzing trace with hash -639029042, now seen corresponding path program 1 times [2021-11-25 19:35:12,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:12,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646882349] [2021-11-25 19:35:12,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:12,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:12,684 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:12,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646882349] [2021-11-25 19:35:12,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646882349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:12,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:12,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:12,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91897870] [2021-11-25 19:35:12,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:12,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:12,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:12,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:12,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:12,687 INFO L87 Difference]: Start difference. First operand 1617 states and 2162 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:14,814 INFO L93 Difference]: Finished difference Result 2944 states and 3934 transitions. [2021-11-25 19:35:14,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:35:14,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-25 19:35:14,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:14,818 INFO L225 Difference]: With dead ends: 2944 [2021-11-25 19:35:14,818 INFO L226 Difference]: Without dead ends: 2723 [2021-11-25 19:35:14,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:35:14,819 INFO L933 BasicCegarLoop]: 1204 mSDtfsCounter, 4805 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 3327 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4805 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 3351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:14,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4805 Valid, 4598 Invalid, 3351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3327 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 19:35:14,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2021-11-25 19:35:15,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1617. [2021-11-25 19:35:15,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3608312342569269) internal successors, (2161), 1616 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2161 transitions. [2021-11-25 19:35:15,103 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2161 transitions. Word has length 112 [2021-11-25 19:35:15,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:15,104 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2161 transitions. [2021-11-25 19:35:15,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:15,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2161 transitions. [2021-11-25 19:35:15,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 19:35:15,106 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:15,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:15,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 19:35:15,107 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:15,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:15,107 INFO L85 PathProgramCache]: Analyzing trace with hash -289332849, now seen corresponding path program 1 times [2021-11-25 19:35:15,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:15,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77073931] [2021-11-25 19:35:15,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:15,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:15,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:15,289 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:15,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77073931] [2021-11-25 19:35:15,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77073931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:15,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:15,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:15,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290538710] [2021-11-25 19:35:15,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:15,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:15,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:15,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:15,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:15,292 INFO L87 Difference]: Start difference. First operand 1617 states and 2161 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:17,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:17,189 INFO L93 Difference]: Finished difference Result 2563 states and 3346 transitions. [2021-11-25 19:35:17,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:17,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-25 19:35:17,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:17,194 INFO L225 Difference]: With dead ends: 2563 [2021-11-25 19:35:17,194 INFO L226 Difference]: Without dead ends: 2557 [2021-11-25 19:35:17,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:17,196 INFO L933 BasicCegarLoop]: 825 mSDtfsCounter, 5881 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 2887 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5881 SdHoareTripleChecker+Valid, 3346 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:17,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5881 Valid, 3346 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2887 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 19:35:17,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2021-11-25 19:35:17,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 1617. [2021-11-25 19:35:17,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3595717884130982) internal successors, (2159), 1616 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:17,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2159 transitions. [2021-11-25 19:35:17,445 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2159 transitions. Word has length 113 [2021-11-25 19:35:17,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:17,446 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2159 transitions. [2021-11-25 19:35:17,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:17,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2159 transitions. [2021-11-25 19:35:17,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 19:35:17,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:17,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:17,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 19:35:17,448 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:17,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:17,448 INFO L85 PathProgramCache]: Analyzing trace with hash 415339855, now seen corresponding path program 1 times [2021-11-25 19:35:17,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:17,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999928650] [2021-11-25 19:35:17,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:17,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:17,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:17,608 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:17,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999928650] [2021-11-25 19:35:17,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999928650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:17,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:17,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:17,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952777366] [2021-11-25 19:35:17,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:17,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:17,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:17,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:17,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:17,611 INFO L87 Difference]: Start difference. First operand 1617 states and 2159 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:19,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:19,289 INFO L93 Difference]: Finished difference Result 2383 states and 3181 transitions. [2021-11-25 19:35:19,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 19:35:19,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-25 19:35:19,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:19,291 INFO L225 Difference]: With dead ends: 2383 [2021-11-25 19:35:19,293 INFO L226 Difference]: Without dead ends: 1737 [2021-11-25 19:35:19,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-11-25 19:35:19,297 INFO L933 BasicCegarLoop]: 887 mSDtfsCounter, 3078 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 2744 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3078 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:19,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3078 Valid, 3472 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2744 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 19:35:19,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2021-11-25 19:35:19,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1617. [2021-11-25 19:35:19,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3583123425692696) internal successors, (2157), 1616 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:19,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2157 transitions. [2021-11-25 19:35:19,473 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2157 transitions. Word has length 113 [2021-11-25 19:35:19,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:19,473 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2157 transitions. [2021-11-25 19:35:19,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:19,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2157 transitions. [2021-11-25 19:35:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 19:35:19,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:19,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:19,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 19:35:19,477 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:19,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash 137094735, now seen corresponding path program 1 times [2021-11-25 19:35:19,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:19,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563178957] [2021-11-25 19:35:19,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:19,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:19,756 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:19,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563178957] [2021-11-25 19:35:19,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563178957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:19,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:19,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:19,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313899263] [2021-11-25 19:35:19,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:19,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:19,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:19,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:19,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:19,759 INFO L87 Difference]: Start difference. First operand 1617 states and 2157 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:21,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:21,886 INFO L93 Difference]: Finished difference Result 2834 states and 3760 transitions. [2021-11-25 19:35:21,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:21,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-25 19:35:21,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:21,889 INFO L225 Difference]: With dead ends: 2834 [2021-11-25 19:35:21,890 INFO L226 Difference]: Without dead ends: 2693 [2021-11-25 19:35:21,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:21,892 INFO L933 BasicCegarLoop]: 953 mSDtfsCounter, 3774 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 3243 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3774 SdHoareTripleChecker+Valid, 4076 SdHoareTripleChecker+Invalid, 3306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:21,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3774 Valid, 4076 Invalid, 3306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3243 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 19:35:21,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2021-11-25 19:35:22,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1617. [2021-11-25 19:35:22,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3576826196473553) internal successors, (2156), 1616 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:22,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2156 transitions. [2021-11-25 19:35:22,091 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2156 transitions. Word has length 113 [2021-11-25 19:35:22,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:22,092 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2156 transitions. [2021-11-25 19:35:22,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:22,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2156 transitions. [2021-11-25 19:35:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 19:35:22,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:22,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:22,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 19:35:22,094 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:22,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:22,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1768415631, now seen corresponding path program 1 times [2021-11-25 19:35:22,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:22,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775688424] [2021-11-25 19:35:22,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:22,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:22,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:22,257 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:22,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775688424] [2021-11-25 19:35:22,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775688424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:22,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:22,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:22,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835455558] [2021-11-25 19:35:22,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:22,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:22,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:22,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:22,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:22,260 INFO L87 Difference]: Start difference. First operand 1617 states and 2156 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:24,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:24,367 INFO L93 Difference]: Finished difference Result 2675 states and 3488 transitions. [2021-11-25 19:35:24,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:24,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-25 19:35:24,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:24,372 INFO L225 Difference]: With dead ends: 2675 [2021-11-25 19:35:24,372 INFO L226 Difference]: Without dead ends: 2557 [2021-11-25 19:35:24,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:24,373 INFO L933 BasicCegarLoop]: 825 mSDtfsCounter, 5869 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 2879 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5869 SdHoareTripleChecker+Valid, 3345 SdHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:24,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5869 Valid, 3345 Invalid, 3241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2879 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 19:35:24,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2021-11-25 19:35:24,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 1617. [2021-11-25 19:35:24,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3570528967254407) internal successors, (2155), 1616 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:24,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2155 transitions. [2021-11-25 19:35:24,621 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2155 transitions. Word has length 113 [2021-11-25 19:35:24,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:24,621 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2155 transitions. [2021-11-25 19:35:24,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:24,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2155 transitions. [2021-11-25 19:35:24,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 19:35:24,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:24,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:24,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 19:35:24,624 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:24,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:24,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1519420945, now seen corresponding path program 1 times [2021-11-25 19:35:24,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:24,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990424698] [2021-11-25 19:35:24,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:24,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:24,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:24,816 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:24,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990424698] [2021-11-25 19:35:24,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990424698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:24,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:24,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:24,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305215949] [2021-11-25 19:35:24,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:24,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:24,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:24,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:24,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:24,818 INFO L87 Difference]: Start difference. First operand 1617 states and 2155 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:26,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:26,831 INFO L93 Difference]: Finished difference Result 2843 states and 3765 transitions. [2021-11-25 19:35:26,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:26,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-25 19:35:26,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:26,834 INFO L225 Difference]: With dead ends: 2843 [2021-11-25 19:35:26,834 INFO L226 Difference]: Without dead ends: 2693 [2021-11-25 19:35:26,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:26,836 INFO L933 BasicCegarLoop]: 953 mSDtfsCounter, 5857 mSDsluCounter, 3110 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5857 SdHoareTripleChecker+Valid, 4056 SdHoareTripleChecker+Invalid, 3328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:26,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5857 Valid, 4056 Invalid, 3328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 3232 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 19:35:26,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2021-11-25 19:35:27,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1617. [2021-11-25 19:35:27,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3564231738035264) internal successors, (2154), 1616 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:27,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2154 transitions. [2021-11-25 19:35:27,029 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2154 transitions. Word has length 113 [2021-11-25 19:35:27,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:27,030 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2154 transitions. [2021-11-25 19:35:27,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:27,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2154 transitions. [2021-11-25 19:35:27,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 19:35:27,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:27,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:27,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 19:35:27,032 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:27,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1339566735, now seen corresponding path program 1 times [2021-11-25 19:35:27,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:27,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421392670] [2021-11-25 19:35:27,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:27,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:27,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:27,180 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:27,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421392670] [2021-11-25 19:35:27,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421392670] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:27,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:27,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:27,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024617686] [2021-11-25 19:35:27,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:27,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:27,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:27,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:27,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:27,182 INFO L87 Difference]: Start difference. First operand 1617 states and 2154 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:29,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:29,122 INFO L93 Difference]: Finished difference Result 2881 states and 3825 transitions. [2021-11-25 19:35:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:29,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-25 19:35:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:29,125 INFO L225 Difference]: With dead ends: 2881 [2021-11-25 19:35:29,125 INFO L226 Difference]: Without dead ends: 2717 [2021-11-25 19:35:29,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:29,127 INFO L933 BasicCegarLoop]: 971 mSDtfsCounter, 3785 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3785 SdHoareTripleChecker+Valid, 4154 SdHoareTripleChecker+Invalid, 3291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:29,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3785 Valid, 4154 Invalid, 3291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 19:35:29,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2021-11-25 19:35:29,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 1617. [2021-11-25 19:35:29,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.355793450881612) internal successors, (2153), 1616 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:29,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2153 transitions. [2021-11-25 19:35:29,321 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2153 transitions. Word has length 113 [2021-11-25 19:35:29,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:29,321 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2153 transitions. [2021-11-25 19:35:29,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:29,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2153 transitions. [2021-11-25 19:35:29,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-25 19:35:29,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:29,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:29,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-25 19:35:29,324 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:29,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:29,325 INFO L85 PathProgramCache]: Analyzing trace with hash 880027216, now seen corresponding path program 1 times [2021-11-25 19:35:29,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:29,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084040919] [2021-11-25 19:35:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:29,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:29,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:29,577 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:29,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084040919] [2021-11-25 19:35:29,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084040919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:29,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:29,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:29,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821890696] [2021-11-25 19:35:29,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:29,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:29,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:29,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:29,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:29,580 INFO L87 Difference]: Start difference. First operand 1617 states and 2153 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:31,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:31,551 INFO L93 Difference]: Finished difference Result 2853 states and 3782 transitions. [2021-11-25 19:35:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:31,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-25 19:35:31,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:31,554 INFO L225 Difference]: With dead ends: 2853 [2021-11-25 19:35:31,554 INFO L226 Difference]: Without dead ends: 2693 [2021-11-25 19:35:31,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:31,555 INFO L933 BasicCegarLoop]: 953 mSDtfsCounter, 5813 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 3194 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5813 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 3291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 3194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:31,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5813 Valid, 4112 Invalid, 3291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3194 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 19:35:31,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2021-11-25 19:35:31,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1617. [2021-11-25 19:35:31,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3545340050377834) internal successors, (2151), 1616 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2151 transitions. [2021-11-25 19:35:31,749 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2151 transitions. Word has length 114 [2021-11-25 19:35:31,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:31,749 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2151 transitions. [2021-11-25 19:35:31,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:31,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2151 transitions. [2021-11-25 19:35:31,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-25 19:35:31,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:31,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:31,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-25 19:35:31,752 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:31,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:31,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1160312895, now seen corresponding path program 1 times [2021-11-25 19:35:31,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:31,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605708030] [2021-11-25 19:35:31,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:31,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:32,138 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:32,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605708030] [2021-11-25 19:35:32,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605708030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:32,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:32,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 19:35:32,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661465636] [2021-11-25 19:35:32,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:32,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:35:32,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:32,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:35:32,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:35:32,140 INFO L87 Difference]: Start difference. First operand 1617 states and 2151 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:33,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:33,401 INFO L93 Difference]: Finished difference Result 2491 states and 3317 transitions. [2021-11-25 19:35:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 19:35:33,402 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-25 19:35:33,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:33,404 INFO L225 Difference]: With dead ends: 2491 [2021-11-25 19:35:33,405 INFO L226 Difference]: Without dead ends: 1933 [2021-11-25 19:35:33,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:33,407 INFO L933 BasicCegarLoop]: 1623 mSDtfsCounter, 3499 mSDsluCounter, 8542 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3499 SdHoareTripleChecker+Valid, 9983 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:33,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3499 Valid, 9983 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 19:35:33,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2021-11-25 19:35:33,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1171. [2021-11-25 19:35:33,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1148 states have (on average 1.343205574912892) internal successors, (1542), 1170 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:33,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1542 transitions. [2021-11-25 19:35:33,649 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1542 transitions. Word has length 114 [2021-11-25 19:35:33,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:33,650 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1542 transitions. [2021-11-25 19:35:33,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:33,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1542 transitions. [2021-11-25 19:35:33,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-25 19:35:33,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:33,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:33,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-25 19:35:33,653 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:33,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:33,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1410743600, now seen corresponding path program 1 times [2021-11-25 19:35:33,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:33,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937277591] [2021-11-25 19:35:33,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:33,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:33,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:33,833 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:33,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937277591] [2021-11-25 19:35:33,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937277591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:33,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:33,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:33,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584982998] [2021-11-25 19:35:33,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:33,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:33,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:33,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:33,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:33,836 INFO L87 Difference]: Start difference. First operand 1171 states and 1542 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:36,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:36,067 INFO L93 Difference]: Finished difference Result 2518 states and 3329 transitions. [2021-11-25 19:35:36,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:35:36,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-25 19:35:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:36,069 INFO L225 Difference]: With dead ends: 2518 [2021-11-25 19:35:36,069 INFO L226 Difference]: Without dead ends: 2277 [2021-11-25 19:35:36,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:35:36,071 INFO L933 BasicCegarLoop]: 1274 mSDtfsCounter, 2654 mSDsluCounter, 4223 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 5487 SdHoareTripleChecker+Invalid, 3796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:36,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2654 Valid, 5487 Invalid, 3796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3781 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 19:35:36,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2021-11-25 19:35:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 1171. [2021-11-25 19:35:36,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1148 states have (on average 1.3423344947735192) internal successors, (1541), 1170 states have internal predecessors, (1541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:36,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1541 transitions. [2021-11-25 19:35:36,273 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1541 transitions. Word has length 114 [2021-11-25 19:35:36,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:36,273 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1541 transitions. [2021-11-25 19:35:36,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:36,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1541 transitions. [2021-11-25 19:35:36,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-25 19:35:36,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:36,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:36,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-25 19:35:36,275 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:36,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:36,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1942041841, now seen corresponding path program 1 times [2021-11-25 19:35:36,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:36,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869227475] [2021-11-25 19:35:36,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:36,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:36,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:36,477 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:36,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869227475] [2021-11-25 19:35:36,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869227475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:36,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:36,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:36,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157172784] [2021-11-25 19:35:36,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:36,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:36,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:36,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:36,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:36,480 INFO L87 Difference]: Start difference. First operand 1171 states and 1541 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:38,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:38,413 INFO L93 Difference]: Finished difference Result 2154 states and 2833 transitions. [2021-11-25 19:35:38,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:35:38,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-25 19:35:38,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:38,415 INFO L225 Difference]: With dead ends: 2154 [2021-11-25 19:35:38,415 INFO L226 Difference]: Without dead ends: 2024 [2021-11-25 19:35:38,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:35:38,416 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 3765 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3765 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:38,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3765 Valid, 3937 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2893 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 19:35:38,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2021-11-25 19:35:38,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 1171. [2021-11-25 19:35:38,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1148 states have (on average 1.3414634146341464) internal successors, (1540), 1170 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:38,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1540 transitions. [2021-11-25 19:35:38,584 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1540 transitions. Word has length 114 [2021-11-25 19:35:38,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:38,584 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1540 transitions. [2021-11-25 19:35:38,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:38,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1540 transitions. [2021-11-25 19:35:38,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-25 19:35:38,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:38,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:38,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-25 19:35:38,586 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:38,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:38,586 INFO L85 PathProgramCache]: Analyzing trace with hash 87169319, now seen corresponding path program 1 times [2021-11-25 19:35:38,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:38,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142583696] [2021-11-25 19:35:38,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:38,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:39,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:39,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142583696] [2021-11-25 19:35:39,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142583696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:39,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:39,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-25 19:35:39,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830855032] [2021-11-25 19:35:39,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:39,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 19:35:39,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:39,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 19:35:39,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-11-25 19:35:39,133 INFO L87 Difference]: Start difference. First operand 1171 states and 1540 transitions. Second operand has 15 states, 15 states have (on average 7.6) internal successors, (114), 14 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:40,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:40,841 INFO L93 Difference]: Finished difference Result 1739 states and 2267 transitions. [2021-11-25 19:35:40,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 19:35:40,841 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.6) internal successors, (114), 14 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-25 19:35:40,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:40,842 INFO L225 Difference]: With dead ends: 1739 [2021-11-25 19:35:40,842 INFO L226 Difference]: Without dead ends: 1206 [2021-11-25 19:35:40,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=173, Invalid=477, Unknown=0, NotChecked=0, Total=650 [2021-11-25 19:35:40,844 INFO L933 BasicCegarLoop]: 897 mSDtfsCounter, 2917 mSDsluCounter, 6541 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2917 SdHoareTripleChecker+Valid, 7322 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:40,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2917 Valid, 7322 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 19:35:40,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2021-11-25 19:35:40,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 976. [2021-11-25 19:35:40,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 954 states have (on average 1.3333333333333333) internal successors, (1272), 975 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1272 transitions. [2021-11-25 19:35:40,988 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1272 transitions. Word has length 114 [2021-11-25 19:35:40,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:40,988 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 1272 transitions. [2021-11-25 19:35:40,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.6) internal successors, (114), 14 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1272 transitions. [2021-11-25 19:35:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-25 19:35:40,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:40,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:40,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-25 19:35:40,990 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:40,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:40,991 INFO L85 PathProgramCache]: Analyzing trace with hash 929486772, now seen corresponding path program 1 times [2021-11-25 19:35:40,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:40,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668914501] [2021-11-25 19:35:40,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:40,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:41,151 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:41,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668914501] [2021-11-25 19:35:41,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668914501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:41,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:41,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:41,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379711798] [2021-11-25 19:35:41,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:41,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:41,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:41,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:41,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:41,154 INFO L87 Difference]: Start difference. First operand 976 states and 1272 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:42,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:42,542 INFO L93 Difference]: Finished difference Result 1773 states and 2283 transitions. [2021-11-25 19:35:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:42,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-25 19:35:42,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:42,544 INFO L225 Difference]: With dead ends: 1773 [2021-11-25 19:35:42,544 INFO L226 Difference]: Without dead ends: 1651 [2021-11-25 19:35:42,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:42,545 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 2375 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:42,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2375 Valid, 2145 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 19:35:42,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2021-11-25 19:35:42,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 976. [2021-11-25 19:35:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 954 states have (on average 1.3312368972746331) internal successors, (1270), 975 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1270 transitions. [2021-11-25 19:35:42,743 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1270 transitions. Word has length 115 [2021-11-25 19:35:42,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:42,744 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 1270 transitions. [2021-11-25 19:35:42,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:42,744 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1270 transitions. [2021-11-25 19:35:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-25 19:35:42,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:42,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:42,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-25 19:35:42,747 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:42,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:42,747 INFO L85 PathProgramCache]: Analyzing trace with hash 107578612, now seen corresponding path program 1 times [2021-11-25 19:35:42,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:42,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80806489] [2021-11-25 19:35:42,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:42,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:42,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:42,908 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:42,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80806489] [2021-11-25 19:35:42,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80806489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:42,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:42,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:42,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844212861] [2021-11-25 19:35:42,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:42,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:42,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:42,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:42,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:42,911 INFO L87 Difference]: Start difference. First operand 976 states and 1270 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:44,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:44,417 INFO L93 Difference]: Finished difference Result 2251 states and 2962 transitions. [2021-11-25 19:35:44,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:35:44,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-25 19:35:44,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:44,420 INFO L225 Difference]: With dead ends: 2251 [2021-11-25 19:35:44,420 INFO L226 Difference]: Without dead ends: 1856 [2021-11-25 19:35:44,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:35:44,421 INFO L933 BasicCegarLoop]: 810 mSDtfsCounter, 2248 mSDsluCounter, 2359 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 3160 SdHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:44,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2248 Valid, 3160 Invalid, 2310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 19:35:44,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2021-11-25 19:35:44,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 976. [2021-11-25 19:35:44,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 954 states have (on average 1.329140461215933) internal successors, (1268), 975 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:44,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1268 transitions. [2021-11-25 19:35:44,577 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1268 transitions. Word has length 115 [2021-11-25 19:35:44,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:44,577 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 1268 transitions. [2021-11-25 19:35:44,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:44,578 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1268 transitions. [2021-11-25 19:35:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-25 19:35:44,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:44,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:44,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-25 19:35:44,579 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:44,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:44,579 INFO L85 PathProgramCache]: Analyzing trace with hash 959634164, now seen corresponding path program 1 times [2021-11-25 19:35:44,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:44,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267503931] [2021-11-25 19:35:44,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:44,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:44,810 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:44,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267503931] [2021-11-25 19:35:44,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267503931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:44,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:44,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:44,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517653766] [2021-11-25 19:35:44,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:44,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:44,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:44,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:44,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:44,813 INFO L87 Difference]: Start difference. First operand 976 states and 1268 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:46,342 INFO L93 Difference]: Finished difference Result 1891 states and 2466 transitions. [2021-11-25 19:35:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:46,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-25 19:35:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:46,344 INFO L225 Difference]: With dead ends: 1891 [2021-11-25 19:35:46,344 INFO L226 Difference]: Without dead ends: 1723 [2021-11-25 19:35:46,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:46,345 INFO L933 BasicCegarLoop]: 598 mSDtfsCounter, 3433 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3433 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:46,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3433 Valid, 2503 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 19:35:46,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2021-11-25 19:35:46,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 976. [2021-11-25 19:35:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 954 states have (on average 1.3270440251572326) internal successors, (1266), 975 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:46,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1266 transitions. [2021-11-25 19:35:46,503 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1266 transitions. Word has length 115 [2021-11-25 19:35:46,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:46,504 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 1266 transitions. [2021-11-25 19:35:46,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:46,504 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1266 transitions. [2021-11-25 19:35:46,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-25 19:35:46,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:46,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:46,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-25 19:35:46,506 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:46,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash 179689140, now seen corresponding path program 1 times [2021-11-25 19:35:46,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:46,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065923893] [2021-11-25 19:35:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:46,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:46,641 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:46,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065923893] [2021-11-25 19:35:46,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065923893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:46,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:46,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:46,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680750394] [2021-11-25 19:35:46,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:46,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:46,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:46,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:46,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:46,643 INFO L87 Difference]: Start difference. First operand 976 states and 1266 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:48,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:48,152 INFO L93 Difference]: Finished difference Result 1976 states and 2582 transitions. [2021-11-25 19:35:48,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:48,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-25 19:35:48,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:48,154 INFO L225 Difference]: With dead ends: 1976 [2021-11-25 19:35:48,154 INFO L226 Difference]: Without dead ends: 1735 [2021-11-25 19:35:48,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:48,155 INFO L933 BasicCegarLoop]: 799 mSDtfsCounter, 2930 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 2315 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2930 SdHoareTripleChecker+Valid, 3255 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:48,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2930 Valid, 3255 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2315 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 19:35:48,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2021-11-25 19:35:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 976. [2021-11-25 19:35:48,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 954 states have (on average 1.3249475890985325) internal successors, (1264), 975 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1264 transitions. [2021-11-25 19:35:48,328 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1264 transitions. Word has length 115 [2021-11-25 19:35:48,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:48,329 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 1264 transitions. [2021-11-25 19:35:48,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:48,329 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1264 transitions. [2021-11-25 19:35:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-25 19:35:48,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:48,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:48,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-25 19:35:48,330 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:48,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:48,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1104101316, now seen corresponding path program 1 times [2021-11-25 19:35:48,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:48,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708429994] [2021-11-25 19:35:48,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:48,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:48,666 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:48,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708429994] [2021-11-25 19:35:48,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708429994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:48,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:48,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 19:35:48,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349621609] [2021-11-25 19:35:48,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:48,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:35:48,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:48,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:35:48,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:35:48,668 INFO L87 Difference]: Start difference. First operand 976 states and 1264 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:49,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:49,942 INFO L93 Difference]: Finished difference Result 2314 states and 3033 transitions. [2021-11-25 19:35:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:35:49,943 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-25 19:35:49,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:49,945 INFO L225 Difference]: With dead ends: 2314 [2021-11-25 19:35:49,945 INFO L226 Difference]: Without dead ends: 2113 [2021-11-25 19:35:49,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-11-25 19:35:49,946 INFO L933 BasicCegarLoop]: 1501 mSDtfsCounter, 3409 mSDsluCounter, 5320 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3409 SdHoareTripleChecker+Valid, 6686 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:49,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3409 Valid, 6686 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 19:35:49,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2021-11-25 19:35:50,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 887. [2021-11-25 19:35:50,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 866 states have (on average 1.3198614318706698) internal successors, (1143), 886 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:50,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1143 transitions. [2021-11-25 19:35:50,111 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1143 transitions. Word has length 115 [2021-11-25 19:35:50,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:50,111 INFO L470 AbstractCegarLoop]: Abstraction has 887 states and 1143 transitions. [2021-11-25 19:35:50,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:50,112 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1143 transitions. [2021-11-25 19:35:50,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-25 19:35:50,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:50,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:50,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-25 19:35:50,114 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:50,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:50,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1513076373, now seen corresponding path program 1 times [2021-11-25 19:35:50,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:50,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229715678] [2021-11-25 19:35:50,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:50,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:50,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:50,257 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:50,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229715678] [2021-11-25 19:35:50,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229715678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:50,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:50,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:50,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95106214] [2021-11-25 19:35:50,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:50,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:50,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:50,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:50,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:50,259 INFO L87 Difference]: Start difference. First operand 887 states and 1143 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:51,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:51,448 INFO L93 Difference]: Finished difference Result 1693 states and 2190 transitions. [2021-11-25 19:35:51,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:35:51,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-25 19:35:51,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:51,450 INFO L225 Difference]: With dead ends: 1693 [2021-11-25 19:35:51,450 INFO L226 Difference]: Without dead ends: 1561 [2021-11-25 19:35:51,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:35:51,451 INFO L933 BasicCegarLoop]: 554 mSDtfsCounter, 2596 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2596 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:51,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2596 Valid, 2211 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:35:51,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2021-11-25 19:35:51,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 887. [2021-11-25 19:35:51,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 866 states have (on average 1.3175519630484989) internal successors, (1141), 886 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1141 transitions. [2021-11-25 19:35:51,617 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1141 transitions. Word has length 116 [2021-11-25 19:35:51,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:51,618 INFO L470 AbstractCegarLoop]: Abstraction has 887 states and 1141 transitions. [2021-11-25 19:35:51,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:51,618 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1141 transitions. [2021-11-25 19:35:51,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-25 19:35:51,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:51,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:51,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-25 19:35:51,620 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:51,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:51,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1287146171, now seen corresponding path program 1 times [2021-11-25 19:35:51,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:51,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124583827] [2021-11-25 19:35:51,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:51,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:52,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:52,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:52,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124583827] [2021-11-25 19:35:52,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124583827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:52,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:52,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 19:35:52,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218855593] [2021-11-25 19:35:52,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:52,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:35:52,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:52,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:35:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:35:52,018 INFO L87 Difference]: Start difference. First operand 887 states and 1141 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:53,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:53,401 INFO L93 Difference]: Finished difference Result 1967 states and 2558 transitions. [2021-11-25 19:35:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:35:53,401 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-25 19:35:53,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:53,403 INFO L225 Difference]: With dead ends: 1967 [2021-11-25 19:35:53,403 INFO L226 Difference]: Without dead ends: 1823 [2021-11-25 19:35:53,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-25 19:35:53,404 INFO L933 BasicCegarLoop]: 962 mSDtfsCounter, 3625 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3625 SdHoareTripleChecker+Valid, 5018 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:53,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3625 Valid, 5018 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 19:35:53,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2021-11-25 19:35:53,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 855. [2021-11-25 19:35:53,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.315347721822542) internal successors, (1097), 854 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1097 transitions. [2021-11-25 19:35:53,583 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1097 transitions. Word has length 116 [2021-11-25 19:35:53,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:53,584 INFO L470 AbstractCegarLoop]: Abstraction has 855 states and 1097 transitions. [2021-11-25 19:35:53,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:53,584 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1097 transitions. [2021-11-25 19:35:53,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 19:35:53,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:53,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:53,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-25 19:35:53,586 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:53,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:53,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1810504601, now seen corresponding path program 1 times [2021-11-25 19:35:53,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:53,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889755228] [2021-11-25 19:35:53,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:53,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:53,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:53,756 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:53,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889755228] [2021-11-25 19:35:53,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889755228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:53,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:53,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:53,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892628284] [2021-11-25 19:35:53,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:53,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:53,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:53,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:53,758 INFO L87 Difference]: Start difference. First operand 855 states and 1097 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:35:55,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:55,239 INFO L93 Difference]: Finished difference Result 1870 states and 2424 transitions. [2021-11-25 19:35:55,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:55,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-25 19:35:55,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:55,241 INFO L225 Difference]: With dead ends: 1870 [2021-11-25 19:35:55,241 INFO L226 Difference]: Without dead ends: 1614 [2021-11-25 19:35:55,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:55,242 INFO L933 BasicCegarLoop]: 739 mSDtfsCounter, 1812 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:55,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1812 Valid, 2821 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 19:35:55,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2021-11-25 19:35:55,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 855. [2021-11-25 19:35:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.3129496402877698) internal successors, (1095), 854 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:55,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1095 transitions. [2021-11-25 19:35:55,425 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1095 transitions. Word has length 117 [2021-11-25 19:35:55,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:55,425 INFO L470 AbstractCegarLoop]: Abstraction has 855 states and 1095 transitions. [2021-11-25 19:35:55,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:35:55,425 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1095 transitions. [2021-11-25 19:35:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 19:35:55,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:55,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:55,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-25 19:35:55,427 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:55,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:55,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1811786073, now seen corresponding path program 1 times [2021-11-25 19:35:55,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:55,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397357854] [2021-11-25 19:35:55,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:55,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:55,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:55,599 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:55,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397357854] [2021-11-25 19:35:55,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397357854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:55,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:55,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:55,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001079658] [2021-11-25 19:35:55,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:55,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:55,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:55,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:55,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:55,602 INFO L87 Difference]: Start difference. First operand 855 states and 1095 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:35:57,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:57,035 INFO L93 Difference]: Finished difference Result 1724 states and 2229 transitions. [2021-11-25 19:35:57,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:57,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-25 19:35:57,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:57,038 INFO L225 Difference]: With dead ends: 1724 [2021-11-25 19:35:57,038 INFO L226 Difference]: Without dead ends: 1549 [2021-11-25 19:35:57,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:35:57,039 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1890 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:57,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1890 Valid, 2384 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:35:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2021-11-25 19:35:57,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 855. [2021-11-25 19:35:57,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.3105515587529977) internal successors, (1093), 854 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:57,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1093 transitions. [2021-11-25 19:35:57,227 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1093 transitions. Word has length 117 [2021-11-25 19:35:57,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:57,228 INFO L470 AbstractCegarLoop]: Abstraction has 855 states and 1093 transitions. [2021-11-25 19:35:57,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:35:57,228 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1093 transitions. [2021-11-25 19:35:57,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 19:35:57,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:57,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:57,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-25 19:35:57,229 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:57,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:57,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1153256871, now seen corresponding path program 1 times [2021-11-25 19:35:57,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:57,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994851123] [2021-11-25 19:35:57,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:57,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:57,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:57,364 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:57,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994851123] [2021-11-25 19:35:57,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994851123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:57,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:57,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:57,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541015027] [2021-11-25 19:35:57,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:57,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:57,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:57,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:57,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:57,366 INFO L87 Difference]: Start difference. First operand 855 states and 1093 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:35:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:58,761 INFO L93 Difference]: Finished difference Result 1667 states and 2147 transitions. [2021-11-25 19:35:58,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:35:58,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-25 19:35:58,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:58,763 INFO L225 Difference]: With dead ends: 1667 [2021-11-25 19:35:58,763 INFO L226 Difference]: Without dead ends: 1529 [2021-11-25 19:35:58,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:35:58,764 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 2612 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2612 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:58,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2612 Valid, 2370 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:35:58,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2021-11-25 19:35:58,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 855. [2021-11-25 19:35:58,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.3081534772182255) internal successors, (1091), 854 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:35:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1091 transitions. [2021-11-25 19:35:58,954 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1091 transitions. Word has length 117 [2021-11-25 19:35:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:58,955 INFO L470 AbstractCegarLoop]: Abstraction has 855 states and 1091 transitions. [2021-11-25 19:35:58,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:35:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1091 transitions. [2021-11-25 19:35:58,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 19:35:58,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:58,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:58,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-25 19:35:58,957 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:35:58,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:58,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1208891289, now seen corresponding path program 1 times [2021-11-25 19:35:58,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:58,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578682791] [2021-11-25 19:35:58,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:58,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:35:59,103 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:59,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578682791] [2021-11-25 19:35:59,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578682791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:59,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:59,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:35:59,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071724017] [2021-11-25 19:35:59,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:59,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:35:59,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:59,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:35:59,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:35:59,105 INFO L87 Difference]: Start difference. First operand 855 states and 1091 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:36:00,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:00,493 INFO L93 Difference]: Finished difference Result 1724 states and 2225 transitions. [2021-11-25 19:36:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:00,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-25 19:36:00,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:00,495 INFO L225 Difference]: With dead ends: 1724 [2021-11-25 19:36:00,495 INFO L226 Difference]: Without dead ends: 1549 [2021-11-25 19:36:00,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:00,496 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 1829 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:00,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1829 Valid, 2425 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:36:00,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2021-11-25 19:36:00,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 855. [2021-11-25 19:36:00,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.3057553956834533) internal successors, (1089), 854 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:00,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1089 transitions. [2021-11-25 19:36:00,683 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1089 transitions. Word has length 117 [2021-11-25 19:36:00,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:00,683 INFO L470 AbstractCegarLoop]: Abstraction has 855 states and 1089 transitions. [2021-11-25 19:36:00,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:36:00,683 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1089 transitions. [2021-11-25 19:36:00,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 19:36:00,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:00,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:00,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-25 19:36:00,684 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:00,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:00,685 INFO L85 PathProgramCache]: Analyzing trace with hash -934243495, now seen corresponding path program 1 times [2021-11-25 19:36:00,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:00,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91170898] [2021-11-25 19:36:00,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:00,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:00,824 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:00,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91170898] [2021-11-25 19:36:00,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91170898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:00,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:00,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:00,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389436978] [2021-11-25 19:36:00,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:00,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:00,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:00,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:00,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:00,826 INFO L87 Difference]: Start difference. First operand 855 states and 1089 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:36:02,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:02,457 INFO L93 Difference]: Finished difference Result 1667 states and 2143 transitions. [2021-11-25 19:36:02,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:02,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-25 19:36:02,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:02,459 INFO L225 Difference]: With dead ends: 1667 [2021-11-25 19:36:02,459 INFO L226 Difference]: Without dead ends: 1529 [2021-11-25 19:36:02,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:36:02,460 INFO L933 BasicCegarLoop]: 623 mSDtfsCounter, 2428 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2428 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:02,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2428 Valid, 2555 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 19:36:02,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2021-11-25 19:36:02,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 855. [2021-11-25 19:36:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.303357314148681) internal successors, (1087), 854 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:02,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1087 transitions. [2021-11-25 19:36:02,652 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1087 transitions. Word has length 117 [2021-11-25 19:36:02,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:02,652 INFO L470 AbstractCegarLoop]: Abstraction has 855 states and 1087 transitions. [2021-11-25 19:36:02,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:36:02,653 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1087 transitions. [2021-11-25 19:36:02,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 19:36:02,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:02,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:02,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-25 19:36:02,654 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:02,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:02,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1147282969, now seen corresponding path program 1 times [2021-11-25 19:36:02,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:02,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510369094] [2021-11-25 19:36:02,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:02,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:02,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:02,798 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:02,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510369094] [2021-11-25 19:36:02,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510369094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:02,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:02,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:02,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042344392] [2021-11-25 19:36:02,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:02,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:02,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:02,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:02,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:02,800 INFO L87 Difference]: Start difference. First operand 855 states and 1087 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:36:04,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:04,308 INFO L93 Difference]: Finished difference Result 1667 states and 2141 transitions. [2021-11-25 19:36:04,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:36:04,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-25 19:36:04,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:04,310 INFO L225 Difference]: With dead ends: 1667 [2021-11-25 19:36:04,310 INFO L226 Difference]: Without dead ends: 1529 [2021-11-25 19:36:04,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:36:04,311 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 1582 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 3015 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:04,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1582 Valid, 3015 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 19:36:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2021-11-25 19:36:04,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 855. [2021-11-25 19:36:04,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.3009592326139088) internal successors, (1085), 854 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:04,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1085 transitions. [2021-11-25 19:36:04,504 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1085 transitions. Word has length 117 [2021-11-25 19:36:04,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:04,504 INFO L470 AbstractCegarLoop]: Abstraction has 855 states and 1085 transitions. [2021-11-25 19:36:04,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:36:04,505 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1085 transitions. [2021-11-25 19:36:04,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 19:36:04,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:04,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:04,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-25 19:36:04,506 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:04,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:04,506 INFO L85 PathProgramCache]: Analyzing trace with hash 708418848, now seen corresponding path program 1 times [2021-11-25 19:36:04,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:04,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618032060] [2021-11-25 19:36:04,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:04,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:04,650 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:04,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618032060] [2021-11-25 19:36:04,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618032060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:04,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:04,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:04,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100959615] [2021-11-25 19:36:04,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:04,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:04,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:04,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:04,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:04,653 INFO L87 Difference]: Start difference. First operand 855 states and 1085 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:36:05,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:05,976 INFO L93 Difference]: Finished difference Result 1582 states and 2010 transitions. [2021-11-25 19:36:05,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:05,977 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-25 19:36:05,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:05,978 INFO L225 Difference]: With dead ends: 1582 [2021-11-25 19:36:05,978 INFO L226 Difference]: Without dead ends: 1467 [2021-11-25 19:36:05,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:05,979 INFO L933 BasicCegarLoop]: 486 mSDtfsCounter, 2772 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2772 SdHoareTripleChecker+Valid, 1955 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:05,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2772 Valid, 1955 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:36:05,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2021-11-25 19:36:06,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 855. [2021-11-25 19:36:06,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.2997601918465227) internal successors, (1084), 854 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:06,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1084 transitions. [2021-11-25 19:36:06,179 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1084 transitions. Word has length 117 [2021-11-25 19:36:06,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:06,179 INFO L470 AbstractCegarLoop]: Abstraction has 855 states and 1084 transitions. [2021-11-25 19:36:06,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:36:06,180 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1084 transitions. [2021-11-25 19:36:06,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 19:36:06,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:06,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:06,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-25 19:36:06,181 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:06,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:06,182 INFO L85 PathProgramCache]: Analyzing trace with hash -327780634, now seen corresponding path program 1 times [2021-11-25 19:36:06,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:06,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007074330] [2021-11-25 19:36:06,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:06,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:06,524 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:06,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007074330] [2021-11-25 19:36:06,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007074330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:06,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:06,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 19:36:06,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047061960] [2021-11-25 19:36:06,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:06,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:36:06,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:06,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:36:06,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:36:06,527 INFO L87 Difference]: Start difference. First operand 855 states and 1084 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 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) [2021-11-25 19:36:08,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:08,191 INFO L93 Difference]: Finished difference Result 1868 states and 2404 transitions. [2021-11-25 19:36:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:36:08,194 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-25 19:36:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:08,195 INFO L225 Difference]: With dead ends: 1868 [2021-11-25 19:36:08,195 INFO L226 Difference]: Without dead ends: 1755 [2021-11-25 19:36:08,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-25 19:36:08,196 INFO L933 BasicCegarLoop]: 967 mSDtfsCounter, 3274 mSDsluCounter, 4872 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3274 SdHoareTripleChecker+Valid, 5711 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:08,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3274 Valid, 5711 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 19:36:08,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2021-11-25 19:36:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 854. [2021-11-25 19:36:08,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2989195678271308) internal successors, (1082), 853 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1082 transitions. [2021-11-25 19:36:08,413 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1082 transitions. Word has length 117 [2021-11-25 19:36:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:08,413 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1082 transitions. [2021-11-25 19:36:08,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 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) [2021-11-25 19:36:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1082 transitions. [2021-11-25 19:36:08,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 19:36:08,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:08,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:08,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-25 19:36:08,414 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:08,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:08,415 INFO L85 PathProgramCache]: Analyzing trace with hash 660005984, now seen corresponding path program 1 times [2021-11-25 19:36:08,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:08,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120648128] [2021-11-25 19:36:08,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:08,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:08,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:08,543 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:08,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120648128] [2021-11-25 19:36:08,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120648128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:08,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:08,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:08,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897644998] [2021-11-25 19:36:08,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:08,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:08,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:08,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:08,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:08,546 INFO L87 Difference]: Start difference. First operand 854 states and 1082 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:36:10,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:10,127 INFO L93 Difference]: Finished difference Result 1796 states and 2306 transitions. [2021-11-25 19:36:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:10,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-25 19:36:10,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:10,129 INFO L225 Difference]: With dead ends: 1796 [2021-11-25 19:36:10,129 INFO L226 Difference]: Without dead ends: 1612 [2021-11-25 19:36:10,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:10,130 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 1676 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 2956 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:10,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1676 Valid, 2956 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 19:36:10,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2021-11-25 19:36:10,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 854. [2021-11-25 19:36:10,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.297719087635054) internal successors, (1081), 853 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:10,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1081 transitions. [2021-11-25 19:36:10,357 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1081 transitions. Word has length 117 [2021-11-25 19:36:10,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:10,357 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1081 transitions. [2021-11-25 19:36:10,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2021-11-25 19:36:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1081 transitions. [2021-11-25 19:36:10,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-25 19:36:10,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:10,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:10,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-25 19:36:10,358 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:10,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:10,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1530313190, now seen corresponding path program 1 times [2021-11-25 19:36:10,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:10,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153202969] [2021-11-25 19:36:10,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:10,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:10,493 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:10,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153202969] [2021-11-25 19:36:10,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153202969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:10,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:10,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:10,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541152160] [2021-11-25 19:36:10,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:10,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:10,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:10,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:10,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:10,496 INFO L87 Difference]: Start difference. First operand 854 states and 1081 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:12,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:12,022 INFO L93 Difference]: Finished difference Result 1584 states and 2008 transitions. [2021-11-25 19:36:12,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:12,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-11-25 19:36:12,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:12,024 INFO L225 Difference]: With dead ends: 1584 [2021-11-25 19:36:12,024 INFO L226 Difference]: Without dead ends: 1466 [2021-11-25 19:36:12,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:12,025 INFO L933 BasicCegarLoop]: 486 mSDtfsCounter, 1890 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:12,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1890 Valid, 1967 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:36:12,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-11-25 19:36:12,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 854. [2021-11-25 19:36:12,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2953181272509005) internal successors, (1079), 853 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1079 transitions. [2021-11-25 19:36:12,247 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1079 transitions. Word has length 118 [2021-11-25 19:36:12,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:12,247 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1079 transitions. [2021-11-25 19:36:12,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:12,247 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1079 transitions. [2021-11-25 19:36:12,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-25 19:36:12,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:12,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:12,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-25 19:36:12,248 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:12,249 INFO L85 PathProgramCache]: Analyzing trace with hash -267490650, now seen corresponding path program 1 times [2021-11-25 19:36:12,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:12,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791220461] [2021-11-25 19:36:12,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:12,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:12,380 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:12,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791220461] [2021-11-25 19:36:12,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791220461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:12,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:12,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:12,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911926846] [2021-11-25 19:36:12,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:12,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:12,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:12,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:12,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:12,382 INFO L87 Difference]: Start difference. First operand 854 states and 1079 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:13,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:13,956 INFO L93 Difference]: Finished difference Result 1584 states and 2006 transitions. [2021-11-25 19:36:13,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:13,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-11-25 19:36:13,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:13,958 INFO L225 Difference]: With dead ends: 1584 [2021-11-25 19:36:13,958 INFO L226 Difference]: Without dead ends: 1466 [2021-11-25 19:36:13,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:36:13,959 INFO L933 BasicCegarLoop]: 486 mSDtfsCounter, 2731 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:13,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2731 Valid, 1967 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:36:13,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-11-25 19:36:14,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 854. [2021-11-25 19:36:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2929171668667467) internal successors, (1077), 853 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1077 transitions. [2021-11-25 19:36:14,186 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1077 transitions. Word has length 118 [2021-11-25 19:36:14,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:14,186 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1077 transitions. [2021-11-25 19:36:14,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:14,187 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1077 transitions. [2021-11-25 19:36:14,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-25 19:36:14,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:14,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:14,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-25 19:36:14,188 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:14,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:14,188 INFO L85 PathProgramCache]: Analyzing trace with hash -163297850, now seen corresponding path program 1 times [2021-11-25 19:36:14,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:14,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885805639] [2021-11-25 19:36:14,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:14,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:14,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:14,356 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:14,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885805639] [2021-11-25 19:36:14,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885805639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:14,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:14,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:14,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553522427] [2021-11-25 19:36:14,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:14,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:14,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:14,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:14,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:14,359 INFO L87 Difference]: Start difference. First operand 854 states and 1077 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:15,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:15,980 INFO L93 Difference]: Finished difference Result 1584 states and 2004 transitions. [2021-11-25 19:36:15,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:15,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-11-25 19:36:15,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:15,982 INFO L225 Difference]: With dead ends: 1584 [2021-11-25 19:36:15,982 INFO L226 Difference]: Without dead ends: 1466 [2021-11-25 19:36:15,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:36:15,984 INFO L933 BasicCegarLoop]: 486 mSDtfsCounter, 2728 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2728 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:15,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2728 Valid, 1967 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:36:15,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-11-25 19:36:16,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 854. [2021-11-25 19:36:16,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.290516206482593) internal successors, (1075), 853 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1075 transitions. [2021-11-25 19:36:16,218 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1075 transitions. Word has length 118 [2021-11-25 19:36:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:16,218 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1075 transitions. [2021-11-25 19:36:16,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1075 transitions. [2021-11-25 19:36:16,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-25 19:36:16,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:16,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:16,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-25 19:36:16,220 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:16,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1717089788, now seen corresponding path program 1 times [2021-11-25 19:36:16,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:16,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435952769] [2021-11-25 19:36:16,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:16,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:16,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:16,382 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:16,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435952769] [2021-11-25 19:36:16,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435952769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:16,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:16,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:16,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406510943] [2021-11-25 19:36:16,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:16,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:16,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:16,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:16,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:16,385 INFO L87 Difference]: Start difference. First operand 854 states and 1075 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:17,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:17,937 INFO L93 Difference]: Finished difference Result 1584 states and 2002 transitions. [2021-11-25 19:36:17,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:17,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-11-25 19:36:17,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:17,939 INFO L225 Difference]: With dead ends: 1584 [2021-11-25 19:36:17,939 INFO L226 Difference]: Without dead ends: 1466 [2021-11-25 19:36:17,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:17,940 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 2726 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2726 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:17,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2726 Valid, 1988 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:36:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-11-25 19:36:18,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 854. [2021-11-25 19:36:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2893157262905162) internal successors, (1074), 853 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:18,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1074 transitions. [2021-11-25 19:36:18,199 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1074 transitions. Word has length 118 [2021-11-25 19:36:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:18,199 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1074 transitions. [2021-11-25 19:36:18,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1074 transitions. [2021-11-25 19:36:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:18,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:18,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:18,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-25 19:36:18,200 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:18,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:18,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1287563938, now seen corresponding path program 1 times [2021-11-25 19:36:18,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:18,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036109163] [2021-11-25 19:36:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:18,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:18,320 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:18,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036109163] [2021-11-25 19:36:18,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036109163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:18,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:18,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:18,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677462051] [2021-11-25 19:36:18,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:18,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:18,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:18,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:18,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:18,322 INFO L87 Difference]: Start difference. First operand 854 states and 1074 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:19,770 INFO L93 Difference]: Finished difference Result 1667 states and 2123 transitions. [2021-11-25 19:36:19,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:36:19,771 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:19,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:19,773 INFO L225 Difference]: With dead ends: 1667 [2021-11-25 19:36:19,773 INFO L226 Difference]: Without dead ends: 1528 [2021-11-25 19:36:19,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:36:19,774 INFO L933 BasicCegarLoop]: 688 mSDtfsCounter, 2263 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1603 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:19,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2263 Valid, 2582 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1603 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:36:19,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2021-11-25 19:36:20,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 854. [2021-11-25 19:36:20,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2869147659063624) internal successors, (1072), 853 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:20,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1072 transitions. [2021-11-25 19:36:20,018 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1072 transitions. Word has length 119 [2021-11-25 19:36:20,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:20,018 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1072 transitions. [2021-11-25 19:36:20,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:20,018 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1072 transitions. [2021-11-25 19:36:20,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:20,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:20,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:20,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-25 19:36:20,019 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:20,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:20,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1428201762, now seen corresponding path program 1 times [2021-11-25 19:36:20,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:20,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176821899] [2021-11-25 19:36:20,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:20,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:20,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:20,148 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:20,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176821899] [2021-11-25 19:36:20,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176821899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:20,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:20,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:20,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391369376] [2021-11-25 19:36:20,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:20,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:20,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:20,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:20,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:20,150 INFO L87 Difference]: Start difference. First operand 854 states and 1072 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:21,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:21,826 INFO L93 Difference]: Finished difference Result 1731 states and 2204 transitions. [2021-11-25 19:36:21,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:21,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:21,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:21,828 INFO L225 Difference]: With dead ends: 1731 [2021-11-25 19:36:21,828 INFO L226 Difference]: Without dead ends: 1548 [2021-11-25 19:36:21,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:21,829 INFO L933 BasicCegarLoop]: 692 mSDtfsCounter, 1642 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 2714 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:21,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1642 Valid, 2714 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:36:21,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2021-11-25 19:36:22,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 854. [2021-11-25 19:36:22,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.284513805522209) internal successors, (1070), 853 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:22,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1070 transitions. [2021-11-25 19:36:22,068 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1070 transitions. Word has length 119 [2021-11-25 19:36:22,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:22,068 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1070 transitions. [2021-11-25 19:36:22,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:22,068 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1070 transitions. [2021-11-25 19:36:22,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:22,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:22,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:22,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-25 19:36:22,069 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:22,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:22,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1328095074, now seen corresponding path program 1 times [2021-11-25 19:36:22,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:22,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211247010] [2021-11-25 19:36:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:22,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:22,209 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:22,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211247010] [2021-11-25 19:36:22,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211247010] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:22,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:22,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:22,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093123012] [2021-11-25 19:36:22,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:22,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:22,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:22,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:22,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:22,211 INFO L87 Difference]: Start difference. First operand 854 states and 1070 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:23,687 INFO L93 Difference]: Finished difference Result 1588 states and 2001 transitions. [2021-11-25 19:36:23,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:23,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:23,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:23,689 INFO L225 Difference]: With dead ends: 1588 [2021-11-25 19:36:23,689 INFO L226 Difference]: Without dead ends: 1466 [2021-11-25 19:36:23,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:23,690 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 2617 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2617 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:23,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2617 Valid, 2094 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:36:23,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-11-25 19:36:23,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 854. [2021-11-25 19:36:23,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2821128451380552) internal successors, (1068), 853 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:23,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1068 transitions. [2021-11-25 19:36:23,932 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1068 transitions. Word has length 119 [2021-11-25 19:36:23,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:23,933 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1068 transitions. [2021-11-25 19:36:23,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:23,933 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1068 transitions. [2021-11-25 19:36:23,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:23,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:23,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:23,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-25 19:36:23,934 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:23,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:23,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2127835810, now seen corresponding path program 1 times [2021-11-25 19:36:23,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:23,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300566213] [2021-11-25 19:36:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:23,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:24,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:24,068 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:24,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300566213] [2021-11-25 19:36:24,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300566213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:24,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:24,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:24,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567693775] [2021-11-25 19:36:24,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:24,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:24,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:24,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:24,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:24,070 INFO L87 Difference]: Start difference. First operand 854 states and 1068 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:25,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:25,512 INFO L93 Difference]: Finished difference Result 1588 states and 1997 transitions. [2021-11-25 19:36:25,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:25,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:25,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:25,514 INFO L225 Difference]: With dead ends: 1588 [2021-11-25 19:36:25,514 INFO L226 Difference]: Without dead ends: 1466 [2021-11-25 19:36:25,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:25,514 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 2659 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:25,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2659 Valid, 2050 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:36:25,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-11-25 19:36:25,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 854. [2021-11-25 19:36:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2797118847539015) internal successors, (1066), 853 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1066 transitions. [2021-11-25 19:36:25,755 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1066 transitions. Word has length 119 [2021-11-25 19:36:25,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:25,755 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1066 transitions. [2021-11-25 19:36:25,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:25,755 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1066 transitions. [2021-11-25 19:36:25,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:25,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:25,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:25,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-25 19:36:25,757 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:25,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:25,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1345223326, now seen corresponding path program 1 times [2021-11-25 19:36:25,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:25,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278416370] [2021-11-25 19:36:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:25,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:25,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:25,904 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:25,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278416370] [2021-11-25 19:36:25,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278416370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:25,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:25,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:25,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202863699] [2021-11-25 19:36:25,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:25,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:25,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:25,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:25,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:25,906 INFO L87 Difference]: Start difference. First operand 854 states and 1066 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:27,568 INFO L93 Difference]: Finished difference Result 1667 states and 2113 transitions. [2021-11-25 19:36:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:36:27,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:27,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:27,570 INFO L225 Difference]: With dead ends: 1667 [2021-11-25 19:36:27,570 INFO L226 Difference]: Without dead ends: 1528 [2021-11-25 19:36:27,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:36:27,571 INFO L933 BasicCegarLoop]: 779 mSDtfsCounter, 1555 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 2166 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:27,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1555 Valid, 3324 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2166 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 19:36:27,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2021-11-25 19:36:27,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 854. [2021-11-25 19:36:27,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2773109243697478) internal successors, (1064), 853 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1064 transitions. [2021-11-25 19:36:27,843 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1064 transitions. Word has length 119 [2021-11-25 19:36:27,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:27,844 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1064 transitions. [2021-11-25 19:36:27,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1064 transitions. [2021-11-25 19:36:27,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:27,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:27,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:27,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-25 19:36:27,845 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:27,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:27,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1363592542, now seen corresponding path program 1 times [2021-11-25 19:36:27,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:27,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594861344] [2021-11-25 19:36:27,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:27,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:27,981 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:27,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594861344] [2021-11-25 19:36:27,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594861344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:27,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:27,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:27,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449392003] [2021-11-25 19:36:27,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:27,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:27,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:27,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:27,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:27,983 INFO L87 Difference]: Start difference. First operand 854 states and 1064 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:29,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:29,578 INFO L93 Difference]: Finished difference Result 1667 states and 2109 transitions. [2021-11-25 19:36:29,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:36:29,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:29,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:29,580 INFO L225 Difference]: With dead ends: 1667 [2021-11-25 19:36:29,580 INFO L226 Difference]: Without dead ends: 1528 [2021-11-25 19:36:29,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:36:29,580 INFO L933 BasicCegarLoop]: 723 mSDtfsCounter, 1556 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:29,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 3128 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 19:36:29,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2021-11-25 19:36:29,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 854. [2021-11-25 19:36:29,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2749099639855943) internal successors, (1062), 853 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:29,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1062 transitions. [2021-11-25 19:36:29,828 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1062 transitions. Word has length 119 [2021-11-25 19:36:29,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:29,828 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1062 transitions. [2021-11-25 19:36:29,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:29,828 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1062 transitions. [2021-11-25 19:36:29,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:29,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:29,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:29,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-11-25 19:36:29,829 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:29,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2109466594, now seen corresponding path program 1 times [2021-11-25 19:36:29,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:29,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707996382] [2021-11-25 19:36:29,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:29,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:29,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:29,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707996382] [2021-11-25 19:36:29,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707996382] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:29,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:29,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:29,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560289428] [2021-11-25 19:36:29,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:29,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:29,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:29,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:29,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:29,957 INFO L87 Difference]: Start difference. First operand 854 states and 1062 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:31,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:31,536 INFO L93 Difference]: Finished difference Result 1588 states and 1991 transitions. [2021-11-25 19:36:31,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:31,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:31,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:31,538 INFO L225 Difference]: With dead ends: 1588 [2021-11-25 19:36:31,538 INFO L226 Difference]: Without dead ends: 1466 [2021-11-25 19:36:31,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:36:31,539 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 2463 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2463 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:31,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2463 Valid, 2246 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:36:31,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-11-25 19:36:31,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 854. [2021-11-25 19:36:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2725090036014406) internal successors, (1060), 853 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:31,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1060 transitions. [2021-11-25 19:36:31,807 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1060 transitions. Word has length 119 [2021-11-25 19:36:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:31,808 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1060 transitions. [2021-11-25 19:36:31,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1060 transitions. [2021-11-25 19:36:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:31,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:31,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:31,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-25 19:36:31,809 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:31,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:31,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1309725858, now seen corresponding path program 1 times [2021-11-25 19:36:31,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:31,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488937773] [2021-11-25 19:36:31,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:31,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:31,929 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:31,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488937773] [2021-11-25 19:36:31,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488937773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:31,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:31,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:31,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113898556] [2021-11-25 19:36:31,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:31,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:31,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:31,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:31,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:31,931 INFO L87 Difference]: Start difference. First operand 854 states and 1060 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:33,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:33,471 INFO L93 Difference]: Finished difference Result 1588 states and 1989 transitions. [2021-11-25 19:36:33,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:33,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:33,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:33,473 INFO L225 Difference]: With dead ends: 1588 [2021-11-25 19:36:33,473 INFO L226 Difference]: Without dead ends: 1466 [2021-11-25 19:36:33,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:33,474 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 1685 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:33,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1685 Valid, 2294 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:36:33,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-11-25 19:36:33,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 854. [2021-11-25 19:36:33,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2701080432172869) internal successors, (1058), 853 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:33,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1058 transitions. [2021-11-25 19:36:33,731 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1058 transitions. Word has length 119 [2021-11-25 19:36:33,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:33,732 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1058 transitions. [2021-11-25 19:36:33,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:33,732 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1058 transitions. [2021-11-25 19:36:33,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:33,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:33,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:33,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-25 19:36:33,733 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:33,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:33,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1877368830, now seen corresponding path program 1 times [2021-11-25 19:36:33,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:33,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605301998] [2021-11-25 19:36:33,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:33,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:33,862 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:33,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605301998] [2021-11-25 19:36:33,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605301998] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:33,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:33,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:33,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092617318] [2021-11-25 19:36:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:33,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:33,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:33,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:33,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:33,864 INFO L87 Difference]: Start difference. First operand 854 states and 1058 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:35,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:35,410 INFO L93 Difference]: Finished difference Result 1588 states and 1985 transitions. [2021-11-25 19:36:35,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:35,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:35,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:35,411 INFO L225 Difference]: With dead ends: 1588 [2021-11-25 19:36:35,412 INFO L226 Difference]: Without dead ends: 1466 [2021-11-25 19:36:35,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:35,412 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 2505 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2505 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:35,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2505 Valid, 2216 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:36:35,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-11-25 19:36:35,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 854. [2021-11-25 19:36:35,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2677070828331332) internal successors, (1056), 853 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:35,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1056 transitions. [2021-11-25 19:36:35,667 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1056 transitions. Word has length 119 [2021-11-25 19:36:35,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:35,668 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1056 transitions. [2021-11-25 19:36:35,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:35,668 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1056 transitions. [2021-11-25 19:36:35,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:35,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:35,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:35,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-11-25 19:36:35,669 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:35,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:35,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1509015355, now seen corresponding path program 1 times [2021-11-25 19:36:35,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:35,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445515359] [2021-11-25 19:36:35,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:35,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:35,817 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:35,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445515359] [2021-11-25 19:36:35,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445515359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:35,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:35,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:35,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910056031] [2021-11-25 19:36:35,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:35,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:35,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:35,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:35,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:35,819 INFO L87 Difference]: Start difference. First operand 854 states and 1056 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:37,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:37,390 INFO L93 Difference]: Finished difference Result 1654 states and 2078 transitions. [2021-11-25 19:36:37,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:36:37,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:37,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:37,392 INFO L225 Difference]: With dead ends: 1654 [2021-11-25 19:36:37,392 INFO L226 Difference]: Without dead ends: 1528 [2021-11-25 19:36:37,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:36:37,397 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 1719 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 1639 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 2852 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:37,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1719 Valid, 2852 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1639 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:36:37,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2021-11-25 19:36:37,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 854. [2021-11-25 19:36:37,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2665066026410565) internal successors, (1055), 853 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1055 transitions. [2021-11-25 19:36:37,680 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1055 transitions. Word has length 119 [2021-11-25 19:36:37,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:37,681 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1055 transitions. [2021-11-25 19:36:37,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1055 transitions. [2021-11-25 19:36:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:37,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:37,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:37,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-25 19:36:37,682 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:37,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:37,682 INFO L85 PathProgramCache]: Analyzing trace with hash -853614373, now seen corresponding path program 1 times [2021-11-25 19:36:37,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:37,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983198638] [2021-11-25 19:36:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:37,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:37,815 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:37,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983198638] [2021-11-25 19:36:37,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983198638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:37,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:37,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:37,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041177643] [2021-11-25 19:36:37,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:37,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:37,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:37,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:37,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:37,817 INFO L87 Difference]: Start difference. First operand 854 states and 1055 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:39,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:39,384 INFO L93 Difference]: Finished difference Result 1581 states and 1972 transitions. [2021-11-25 19:36:39,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:39,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:39,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:39,386 INFO L225 Difference]: With dead ends: 1581 [2021-11-25 19:36:39,386 INFO L226 Difference]: Without dead ends: 1466 [2021-11-25 19:36:39,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:39,387 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 2525 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2525 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:39,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2525 Valid, 2187 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:36:39,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2021-11-25 19:36:39,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 854. [2021-11-25 19:36:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 833 states have (on average 1.2653061224489797) internal successors, (1054), 853 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:39,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1054 transitions. [2021-11-25 19:36:39,648 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1054 transitions. Word has length 119 [2021-11-25 19:36:39,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:39,648 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1054 transitions. [2021-11-25 19:36:39,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:39,649 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1054 transitions. [2021-11-25 19:36:39,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:39,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:39,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:39,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-25 19:36:39,650 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:39,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:39,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2134274085, now seen corresponding path program 1 times [2021-11-25 19:36:39,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:39,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178799537] [2021-11-25 19:36:39,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:39,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:39,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:39,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178799537] [2021-11-25 19:36:39,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178799537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:39,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:39,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-25 19:36:39,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788780959] [2021-11-25 19:36:39,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:39,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 19:36:39,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:39,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 19:36:39,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-25 19:36:39,838 INFO L87 Difference]: Start difference. First operand 854 states and 1054 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:42,979 INFO L93 Difference]: Finished difference Result 2271 states and 2888 transitions. [2021-11-25 19:36:42,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 19:36:42,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:42,982 INFO L225 Difference]: With dead ends: 2271 [2021-11-25 19:36:42,982 INFO L226 Difference]: Without dead ends: 2145 [2021-11-25 19:36:42,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-25 19:36:42,983 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 4681 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4681 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:42,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4681 Valid, 3447 Invalid, 2796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 19:36:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2021-11-25 19:36:43,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 859. [2021-11-25 19:36:43,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 838 states have (on average 1.2637231503579953) internal successors, (1059), 858 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1059 transitions. [2021-11-25 19:36:43,277 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1059 transitions. Word has length 119 [2021-11-25 19:36:43,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:43,278 INFO L470 AbstractCegarLoop]: Abstraction has 859 states and 1059 transitions. [2021-11-25 19:36:43,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:43,278 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1059 transitions. [2021-11-25 19:36:43,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:43,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:43,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:43,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-11-25 19:36:43,279 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:43,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:43,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1458165509, now seen corresponding path program 1 times [2021-11-25 19:36:43,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:43,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022399064] [2021-11-25 19:36:43,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:43,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:43,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:43,388 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:43,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022399064] [2021-11-25 19:36:43,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022399064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:43,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:43,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:43,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347554297] [2021-11-25 19:36:43,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:43,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:43,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:43,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:43,390 INFO L87 Difference]: Start difference. First operand 859 states and 1059 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:45,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:45,034 INFO L93 Difference]: Finished difference Result 1586 states and 1976 transitions. [2021-11-25 19:36:45,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:36:45,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:45,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:45,036 INFO L225 Difference]: With dead ends: 1586 [2021-11-25 19:36:45,036 INFO L226 Difference]: Without dead ends: 1471 [2021-11-25 19:36:45,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:36:45,037 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 1769 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:45,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1769 Valid, 2187 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:36:45,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2021-11-25 19:36:45,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 859. [2021-11-25 19:36:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 838 states have (on average 1.2625298329355608) internal successors, (1058), 858 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:45,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1058 transitions. [2021-11-25 19:36:45,323 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1058 transitions. Word has length 119 [2021-11-25 19:36:45,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:45,323 INFO L470 AbstractCegarLoop]: Abstraction has 859 states and 1058 transitions. [2021-11-25 19:36:45,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:45,323 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1058 transitions. [2021-11-25 19:36:45,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 19:36:45,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:45,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:45,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-11-25 19:36:45,325 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:45,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:45,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2038910331, now seen corresponding path program 1 times [2021-11-25 19:36:45,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:45,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639443217] [2021-11-25 19:36:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:45,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:45,458 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:45,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639443217] [2021-11-25 19:36:45,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639443217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:45,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:45,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:36:45,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955723126] [2021-11-25 19:36:45,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:45,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:36:45,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:45,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:36:45,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:36:45,461 INFO L87 Difference]: Start difference. First operand 859 states and 1058 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:47,054 INFO L93 Difference]: Finished difference Result 1650 states and 2069 transitions. [2021-11-25 19:36:47,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:36:47,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-25 19:36:47,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:47,056 INFO L225 Difference]: With dead ends: 1650 [2021-11-25 19:36:47,056 INFO L226 Difference]: Without dead ends: 1528 [2021-11-25 19:36:47,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:36:47,056 INFO L933 BasicCegarLoop]: 706 mSDtfsCounter, 2212 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2212 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:47,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2212 Valid, 2672 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:36:47,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2021-11-25 19:36:47,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 859. [2021-11-25 19:36:47,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 838 states have (on average 1.2613365155131264) internal successors, (1057), 858 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:47,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1057 transitions. [2021-11-25 19:36:47,365 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1057 transitions. Word has length 119 [2021-11-25 19:36:47,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:47,365 INFO L470 AbstractCegarLoop]: Abstraction has 859 states and 1057 transitions. [2021-11-25 19:36:47,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1057 transitions. [2021-11-25 19:36:47,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-25 19:36:47,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:47,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:47,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-11-25 19:36:47,367 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:47,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:47,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2000163967, now seen corresponding path program 1 times [2021-11-25 19:36:47,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:47,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630759583] [2021-11-25 19:36:47,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:47,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:47,733 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:47,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630759583] [2021-11-25 19:36:47,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630759583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:47,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:47,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 19:36:47,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695359484] [2021-11-25 19:36:47,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:47,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 19:36:47,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:47,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 19:36:47,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-25 19:36:47,735 INFO L87 Difference]: Start difference. First operand 859 states and 1057 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:50,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:50,976 INFO L93 Difference]: Finished difference Result 2543 states and 3147 transitions. [2021-11-25 19:36:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-25 19:36:50,976 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-25 19:36:50,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:50,978 INFO L225 Difference]: With dead ends: 2543 [2021-11-25 19:36:50,978 INFO L226 Difference]: Without dead ends: 2429 [2021-11-25 19:36:50,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-11-25 19:36:50,979 INFO L933 BasicCegarLoop]: 1072 mSDtfsCounter, 3231 mSDsluCounter, 7181 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3231 SdHoareTripleChecker+Valid, 7976 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:50,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3231 Valid, 7976 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-25 19:36:50,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2021-11-25 19:36:51,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 857. [2021-11-25 19:36:51,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 836 states have (on average 1.2595693779904307) internal successors, (1053), 856 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:51,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1053 transitions. [2021-11-25 19:36:51,300 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1053 transitions. Word has length 120 [2021-11-25 19:36:51,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:51,300 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 1053 transitions. [2021-11-25 19:36:51,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:51,301 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1053 transitions. [2021-11-25 19:36:51,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-25 19:36:51,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:51,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:51,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-11-25 19:36:51,302 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:51,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:51,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1331033441, now seen corresponding path program 1 times [2021-11-25 19:36:51,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:51,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628065241] [2021-11-25 19:36:51,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:51,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:51,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:51,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:51,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628065241] [2021-11-25 19:36:51,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628065241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:51,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:51,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 19:36:51,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424078639] [2021-11-25 19:36:51,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:51,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 19:36:51,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:51,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 19:36:51,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-25 19:36:51,681 INFO L87 Difference]: Start difference. First operand 857 states and 1053 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:55,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:55,278 INFO L93 Difference]: Finished difference Result 2539 states and 3141 transitions. [2021-11-25 19:36:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 19:36:55,278 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-25 19:36:55,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:55,280 INFO L225 Difference]: With dead ends: 2539 [2021-11-25 19:36:55,280 INFO L226 Difference]: Without dead ends: 2425 [2021-11-25 19:36:55,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-25 19:36:55,281 INFO L933 BasicCegarLoop]: 1086 mSDtfsCounter, 3891 mSDsluCounter, 6779 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3891 SdHoareTripleChecker+Valid, 7600 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:55,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3891 Valid, 7600 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-25 19:36:55,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2021-11-25 19:36:55,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 855. [2021-11-25 19:36:55,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.2577937649880095) internal successors, (1049), 854 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:55,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1049 transitions. [2021-11-25 19:36:55,613 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1049 transitions. Word has length 120 [2021-11-25 19:36:55,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:55,614 INFO L470 AbstractCegarLoop]: Abstraction has 855 states and 1049 transitions. [2021-11-25 19:36:55,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:36:55,614 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1049 transitions. [2021-11-25 19:36:55,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-25 19:36:55,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:55,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:55,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-11-25 19:36:55,615 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:36:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:55,616 INFO L85 PathProgramCache]: Analyzing trace with hash 826831361, now seen corresponding path program 1 times [2021-11-25 19:36:55,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:55,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236398279] [2021-11-25 19:36:55,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:55,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:57,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:36:57,112 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:57,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236398279] [2021-11-25 19:36:57,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236398279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:57,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:57,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2021-11-25 19:36:57,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490217049] [2021-11-25 19:36:57,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:57,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-25 19:36:57,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:57,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-25 19:36:57,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2021-11-25 19:36:57,115 INFO L87 Difference]: Start difference. First operand 855 states and 1049 transitions. Second operand has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:07,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:07,620 INFO L93 Difference]: Finished difference Result 1915 states and 2377 transitions. [2021-11-25 19:37:07,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-25 19:37:07,621 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-25 19:37:07,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:07,622 INFO L225 Difference]: With dead ends: 1915 [2021-11-25 19:37:07,622 INFO L226 Difference]: Without dead ends: 1799 [2021-11-25 19:37:07,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=691, Invalid=4279, Unknown=0, NotChecked=0, Total=4970 [2021-11-25 19:37:07,623 INFO L933 BasicCegarLoop]: 1160 mSDtfsCounter, 4035 mSDsluCounter, 25068 mSDsCounter, 0 mSdLazyCounter, 12678 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4035 SdHoareTripleChecker+Valid, 25908 SdHoareTripleChecker+Invalid, 12805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 12678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:07,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4035 Valid, 25908 Invalid, 12805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [127 Valid, 12678 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-11-25 19:37:07,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2021-11-25 19:37:07,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 880. [2021-11-25 19:37:07,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 859 states have (on average 1.2584400465657741) internal successors, (1081), 879 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:07,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1081 transitions. [2021-11-25 19:37:07,960 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1081 transitions. Word has length 120 [2021-11-25 19:37:07,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:07,960 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 1081 transitions. [2021-11-25 19:37:07,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:07,961 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1081 transitions. [2021-11-25 19:37:07,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-25 19:37:07,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:07,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:07,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-11-25 19:37:07,962 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:07,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:07,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1986769439, now seen corresponding path program 1 times [2021-11-25 19:37:07,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:07,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694279868] [2021-11-25 19:37:07,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:07,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:08,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:08,321 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:08,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694279868] [2021-11-25 19:37:08,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694279868] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:08,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:08,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 19:37:08,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674399159] [2021-11-25 19:37:08,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:08,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 19:37:08,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:08,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 19:37:08,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-25 19:37:08,323 INFO L87 Difference]: Start difference. First operand 880 states and 1081 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:11,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:11,691 INFO L93 Difference]: Finished difference Result 2562 states and 3167 transitions. [2021-11-25 19:37:11,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-25 19:37:11,691 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-25 19:37:11,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:11,693 INFO L225 Difference]: With dead ends: 2562 [2021-11-25 19:37:11,693 INFO L226 Difference]: Without dead ends: 2448 [2021-11-25 19:37:11,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-11-25 19:37:11,694 INFO L933 BasicCegarLoop]: 961 mSDtfsCounter, 3875 mSDsluCounter, 6173 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3875 SdHoareTripleChecker+Valid, 6905 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:11,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3875 Valid, 6905 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-25 19:37:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2021-11-25 19:37:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 878. [2021-11-25 19:37:12,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 857 states have (on average 1.2567094515752626) internal successors, (1077), 877 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1077 transitions. [2021-11-25 19:37:12,045 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1077 transitions. Word has length 120 [2021-11-25 19:37:12,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:12,046 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 1077 transitions. [2021-11-25 19:37:12,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:12,046 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1077 transitions. [2021-11-25 19:37:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-25 19:37:12,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:12,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:12,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-11-25 19:37:12,047 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:12,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:12,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1414607647, now seen corresponding path program 1 times [2021-11-25 19:37:12,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:12,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321849011] [2021-11-25 19:37:12,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:12,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:12,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:12,417 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:12,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321849011] [2021-11-25 19:37:12,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321849011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:12,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:12,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 19:37:12,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186086900] [2021-11-25 19:37:12,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:12,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 19:37:12,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:12,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 19:37:12,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-25 19:37:12,419 INFO L87 Difference]: Start difference. First operand 878 states and 1077 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:15,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:15,451 INFO L93 Difference]: Finished difference Result 2958 states and 3740 transitions. [2021-11-25 19:37:15,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 19:37:15,452 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-25 19:37:15,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:15,454 INFO L225 Difference]: With dead ends: 2958 [2021-11-25 19:37:15,454 INFO L226 Difference]: Without dead ends: 2641 [2021-11-25 19:37:15,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-25 19:37:15,455 INFO L933 BasicCegarLoop]: 1614 mSDtfsCounter, 3921 mSDsluCounter, 9971 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3921 SdHoareTripleChecker+Valid, 11279 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:15,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3921 Valid, 11279 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 19:37:15,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2021-11-25 19:37:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 673. [2021-11-25 19:37:15,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 657 states have (on average 1.2465753424657535) internal successors, (819), 672 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:15,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 819 transitions. [2021-11-25 19:37:15,815 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 819 transitions. Word has length 120 [2021-11-25 19:37:15,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:15,815 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 819 transitions. [2021-11-25 19:37:15,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:15,815 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 819 transitions. [2021-11-25 19:37:15,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-25 19:37:15,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:15,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:15,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-11-25 19:37:15,816 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:15,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:15,817 INFO L85 PathProgramCache]: Analyzing trace with hash -2134984887, now seen corresponding path program 1 times [2021-11-25 19:37:15,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:15,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867025189] [2021-11-25 19:37:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:15,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:15,954 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:15,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867025189] [2021-11-25 19:37:15,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867025189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:15,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:15,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:37:15,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693118076] [2021-11-25 19:37:15,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:15,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:37:15,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:15,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:37:15,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:37:15,956 INFO L87 Difference]: Start difference. First operand 673 states and 819 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:17,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:17,682 INFO L93 Difference]: Finished difference Result 1316 states and 1634 transitions. [2021-11-25 19:37:17,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:37:17,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-25 19:37:17,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:17,684 INFO L225 Difference]: With dead ends: 1316 [2021-11-25 19:37:17,684 INFO L226 Difference]: Without dead ends: 1198 [2021-11-25 19:37:17,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:37:17,685 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 2036 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:17,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2036 Valid, 1736 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 19:37:17,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2021-11-25 19:37:17,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 673. [2021-11-25 19:37:17,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 657 states have (on average 1.2450532724505328) internal successors, (818), 672 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:17,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 818 transitions. [2021-11-25 19:37:17,988 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 818 transitions. Word has length 120 [2021-11-25 19:37:17,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:17,988 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 818 transitions. [2021-11-25 19:37:17,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:17,989 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 818 transitions. [2021-11-25 19:37:17,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-25 19:37:17,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:17,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:17,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-11-25 19:37:17,990 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:17,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash 826376713, now seen corresponding path program 1 times [2021-11-25 19:37:17,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:17,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098420264] [2021-11-25 19:37:17,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:17,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:18,112 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:18,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098420264] [2021-11-25 19:37:18,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098420264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:18,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:18,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:37:18,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624127049] [2021-11-25 19:37:18,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:18,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:37:18,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:37:18,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:37:18,115 INFO L87 Difference]: Start difference. First operand 673 states and 818 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:19,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:19,723 INFO L93 Difference]: Finished difference Result 1348 states and 1682 transitions. [2021-11-25 19:37:19,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:37:19,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-25 19:37:19,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:19,724 INFO L225 Difference]: With dead ends: 1348 [2021-11-25 19:37:19,724 INFO L226 Difference]: Without dead ends: 1217 [2021-11-25 19:37:19,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:37:19,725 INFO L933 BasicCegarLoop]: 554 mSDtfsCounter, 1739 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:19,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1739 Valid, 2051 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 19:37:19,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2021-11-25 19:37:20,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 673. [2021-11-25 19:37:20,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 657 states have (on average 1.243531202435312) internal successors, (817), 672 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:20,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 817 transitions. [2021-11-25 19:37:20,034 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 817 transitions. Word has length 120 [2021-11-25 19:37:20,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:20,034 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 817 transitions. [2021-11-25 19:37:20,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:20,035 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 817 transitions. [2021-11-25 19:37:20,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-25 19:37:20,035 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:20,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:20,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-11-25 19:37:20,036 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:20,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:20,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2098188955, now seen corresponding path program 1 times [2021-11-25 19:37:20,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:20,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186482910] [2021-11-25 19:37:20,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:20,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:20,152 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:20,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186482910] [2021-11-25 19:37:20,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186482910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:20,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:20,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:37:20,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008426843] [2021-11-25 19:37:20,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:20,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:37:20,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:20,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:37:20,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:37:20,154 INFO L87 Difference]: Start difference. First operand 673 states and 817 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:21,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:21,831 INFO L93 Difference]: Finished difference Result 1343 states and 1675 transitions. [2021-11-25 19:37:21,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:37:21,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-25 19:37:21,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:21,833 INFO L225 Difference]: With dead ends: 1343 [2021-11-25 19:37:21,833 INFO L226 Difference]: Without dead ends: 1217 [2021-11-25 19:37:21,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:37:21,834 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 1780 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:21,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1780 Valid, 2126 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:37:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2021-11-25 19:37:22,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 668. [2021-11-25 19:37:22,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 652 states have (on average 1.2438650306748467) internal successors, (811), 667 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:22,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 811 transitions. [2021-11-25 19:37:22,137 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 811 transitions. Word has length 120 [2021-11-25 19:37:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:22,138 INFO L470 AbstractCegarLoop]: Abstraction has 668 states and 811 transitions. [2021-11-25 19:37:22,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:22,138 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 811 transitions. [2021-11-25 19:37:22,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-25 19:37:22,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:22,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:22,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-11-25 19:37:22,139 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:22,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:22,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1130103171, now seen corresponding path program 1 times [2021-11-25 19:37:22,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:22,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211536487] [2021-11-25 19:37:22,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:22,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:22,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:22,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:22,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211536487] [2021-11-25 19:37:22,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211536487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:22,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:22,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 19:37:22,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107801520] [2021-11-25 19:37:22,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:22,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 19:37:22,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:22,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 19:37:22,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-25 19:37:22,489 INFO L87 Difference]: Start difference. First operand 668 states and 811 transitions. Second operand has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:24,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:24,612 INFO L93 Difference]: Finished difference Result 1507 states and 1818 transitions. [2021-11-25 19:37:24,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:37:24,612 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-11-25 19:37:24,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:24,614 INFO L225 Difference]: With dead ends: 1507 [2021-11-25 19:37:24,614 INFO L226 Difference]: Without dead ends: 1389 [2021-11-25 19:37:24,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-25 19:37:24,615 INFO L933 BasicCegarLoop]: 715 mSDtfsCounter, 2611 mSDsluCounter, 4413 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2611 SdHoareTripleChecker+Valid, 5010 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:24,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2611 Valid, 5010 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:37:24,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2021-11-25 19:37:24,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 658. [2021-11-25 19:37:24,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 643 states have (on average 1.2379471228615864) internal successors, (796), 657 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:24,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 796 transitions. [2021-11-25 19:37:24,948 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 796 transitions. Word has length 121 [2021-11-25 19:37:24,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:24,948 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 796 transitions. [2021-11-25 19:37:24,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:24,949 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 796 transitions. [2021-11-25 19:37:24,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-25 19:37:24,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:24,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:24,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-11-25 19:37:24,950 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:24,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:24,950 INFO L85 PathProgramCache]: Analyzing trace with hash 740557379, now seen corresponding path program 1 times [2021-11-25 19:37:24,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:24,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235238921] [2021-11-25 19:37:24,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:24,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:25,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:25,417 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:25,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235238921] [2021-11-25 19:37:25,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235238921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:25,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:25,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-25 19:37:25,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059510352] [2021-11-25 19:37:25,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:25,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 19:37:25,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:25,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 19:37:25,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-25 19:37:25,418 INFO L87 Difference]: Start difference. First operand 658 states and 796 transitions. Second operand has 16 states, 16 states have (on average 7.5625) internal successors, (121), 15 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:27,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:27,774 INFO L93 Difference]: Finished difference Result 1339 states and 1606 transitions. [2021-11-25 19:37:27,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 19:37:27,774 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.5625) internal successors, (121), 15 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-11-25 19:37:27,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:27,776 INFO L225 Difference]: With dead ends: 1339 [2021-11-25 19:37:27,776 INFO L226 Difference]: Without dead ends: 1223 [2021-11-25 19:37:27,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2021-11-25 19:37:27,776 INFO L933 BasicCegarLoop]: 635 mSDtfsCounter, 4144 mSDsluCounter, 3844 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4144 SdHoareTripleChecker+Valid, 4396 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:27,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4144 Valid, 4396 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 19:37:27,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2021-11-25 19:37:28,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 656. [2021-11-25 19:37:28,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 641 states have (on average 1.2355694227769112) internal successors, (792), 655 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 792 transitions. [2021-11-25 19:37:28,093 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 792 transitions. Word has length 121 [2021-11-25 19:37:28,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:28,093 INFO L470 AbstractCegarLoop]: Abstraction has 656 states and 792 transitions. [2021-11-25 19:37:28,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.5625) internal successors, (121), 15 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:28,093 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 792 transitions. [2021-11-25 19:37:28,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-25 19:37:28,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:28,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:28,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-11-25 19:37:28,094 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:28,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:28,094 INFO L85 PathProgramCache]: Analyzing trace with hash 883326787, now seen corresponding path program 1 times [2021-11-25 19:37:28,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:28,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757552760] [2021-11-25 19:37:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:28,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:29,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:29,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757552760] [2021-11-25 19:37:29,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757552760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:29,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:29,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2021-11-25 19:37:29,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968373136] [2021-11-25 19:37:29,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:29,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-25 19:37:29,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:29,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-25 19:37:29,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2021-11-25 19:37:29,475 INFO L87 Difference]: Start difference. First operand 656 states and 792 transitions. Second operand has 38 states, 38 states have (on average 3.1842105263157894) internal successors, (121), 37 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:40,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:40,031 INFO L93 Difference]: Finished difference Result 1707 states and 2099 transitions. [2021-11-25 19:37:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-25 19:37:40,032 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.1842105263157894) internal successors, (121), 37 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-11-25 19:37:40,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:40,033 INFO L225 Difference]: With dead ends: 1707 [2021-11-25 19:37:40,033 INFO L226 Difference]: Without dead ends: 1588 [2021-11-25 19:37:40,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=691, Invalid=4279, Unknown=0, NotChecked=0, Total=4970 [2021-11-25 19:37:40,034 INFO L933 BasicCegarLoop]: 1200 mSDtfsCounter, 4771 mSDsluCounter, 23227 mSDsCounter, 0 mSdLazyCounter, 12443 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4771 SdHoareTripleChecker+Valid, 24136 SdHoareTripleChecker+Invalid, 12581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 12443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:40,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4771 Valid, 24136 Invalid, 12581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [138 Valid, 12443 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-11-25 19:37:40,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2021-11-25 19:37:40,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 670. [2021-11-25 19:37:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 655 states have (on average 1.2366412213740459) internal successors, (810), 669 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:40,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 810 transitions. [2021-11-25 19:37:40,351 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 810 transitions. Word has length 121 [2021-11-25 19:37:40,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:40,352 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 810 transitions. [2021-11-25 19:37:40,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.1842105263157894) internal successors, (121), 37 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:40,352 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 810 transitions. [2021-11-25 19:37:40,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-25 19:37:40,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:40,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:40,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-11-25 19:37:40,353 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:40,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1007785507, now seen corresponding path program 1 times [2021-11-25 19:37:40,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:40,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576186540] [2021-11-25 19:37:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:40,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:42,029 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:42,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576186540] [2021-11-25 19:37:42,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576186540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:42,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:42,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2021-11-25 19:37:42,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492875322] [2021-11-25 19:37:42,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:42,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-25 19:37:42,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:42,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-25 19:37:42,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1316, Unknown=0, NotChecked=0, Total=1406 [2021-11-25 19:37:42,030 INFO L87 Difference]: Start difference. First operand 670 states and 810 transitions. Second operand has 38 states, 38 states have (on average 3.1842105263157894) internal successors, (121), 37 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:53,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:53,073 INFO L93 Difference]: Finished difference Result 1709 states and 2101 transitions. [2021-11-25 19:37:53,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-25 19:37:53,074 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.1842105263157894) internal successors, (121), 37 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-11-25 19:37:53,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:53,075 INFO L225 Difference]: With dead ends: 1709 [2021-11-25 19:37:53,075 INFO L226 Difference]: Without dead ends: 1590 [2021-11-25 19:37:53,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=626, Invalid=4344, Unknown=0, NotChecked=0, Total=4970 [2021-11-25 19:37:53,076 INFO L933 BasicCegarLoop]: 1227 mSDtfsCounter, 4424 mSDsluCounter, 24576 mSDsCounter, 0 mSdLazyCounter, 12818 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4424 SdHoareTripleChecker+Valid, 25482 SdHoareTripleChecker+Invalid, 12937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 12818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:53,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4424 Valid, 25482 Invalid, 12937 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 12818 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-11-25 19:37:53,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2021-11-25 19:37:53,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 676. [2021-11-25 19:37:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 661 states have (on average 1.2344931921331317) internal successors, (816), 675 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 816 transitions. [2021-11-25 19:37:53,406 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 816 transitions. Word has length 121 [2021-11-25 19:37:53,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:53,406 INFO L470 AbstractCegarLoop]: Abstraction has 676 states and 816 transitions. [2021-11-25 19:37:53,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.1842105263157894) internal successors, (121), 37 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:53,406 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 816 transitions. [2021-11-25 19:37:53,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-25 19:37:53,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:53,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:53,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-11-25 19:37:53,407 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:53,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:53,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1156078687, now seen corresponding path program 1 times [2021-11-25 19:37:53,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:53,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904968056] [2021-11-25 19:37:53,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:53,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:53,694 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:53,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904968056] [2021-11-25 19:37:53,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904968056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:53,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:53,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 19:37:53,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208122255] [2021-11-25 19:37:53,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:53,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:37:53,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:53,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:37:53,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:37:53,696 INFO L87 Difference]: Start difference. First operand 676 states and 816 transitions. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:55,677 INFO L93 Difference]: Finished difference Result 1887 states and 2355 transitions. [2021-11-25 19:37:55,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:37:55,677 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-11-25 19:37:55,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:55,678 INFO L225 Difference]: With dead ends: 1887 [2021-11-25 19:37:55,679 INFO L226 Difference]: Without dead ends: 1636 [2021-11-25 19:37:55,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:37:55,679 INFO L933 BasicCegarLoop]: 1122 mSDtfsCounter, 1759 mSDsluCounter, 5696 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 6658 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:55,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1759 Valid, 6658 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 19:37:55,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2021-11-25 19:37:55,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 536. [2021-11-25 19:37:55,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 525 states have (on average 1.220952380952381) internal successors, (641), 535 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:55,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 641 transitions. [2021-11-25 19:37:55,980 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 641 transitions. Word has length 121 [2021-11-25 19:37:55,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:55,981 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 641 transitions. [2021-11-25 19:37:55,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:55,981 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 641 transitions. [2021-11-25 19:37:55,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-25 19:37:55,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:55,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:55,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-11-25 19:37:55,982 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:55,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:55,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1869995562, now seen corresponding path program 1 times [2021-11-25 19:37:55,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:55,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371901656] [2021-11-25 19:37:55,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:55,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:56,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:56,242 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:56,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371901656] [2021-11-25 19:37:56,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371901656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:56,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:56,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 19:37:56,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290645359] [2021-11-25 19:37:56,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:56,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 19:37:56,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:56,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 19:37:56,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-25 19:37:56,244 INFO L87 Difference]: Start difference. First operand 536 states and 641 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:57,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:57,345 INFO L93 Difference]: Finished difference Result 970 states and 1177 transitions. [2021-11-25 19:37:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 19:37:57,346 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-11-25 19:37:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:57,347 INFO L225 Difference]: With dead ends: 970 [2021-11-25 19:37:57,347 INFO L226 Difference]: Without dead ends: 718 [2021-11-25 19:37:57,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-11-25 19:37:57,347 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 1807 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:57,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1807 Valid, 1404 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:37:57,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-11-25 19:37:57,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 396. [2021-11-25 19:37:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 390 states have (on average 1.2102564102564102) internal successors, (472), 395 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:57,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 472 transitions. [2021-11-25 19:37:57,597 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 472 transitions. Word has length 121 [2021-11-25 19:37:57,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:57,598 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 472 transitions. [2021-11-25 19:37:57,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:57,598 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 472 transitions. [2021-11-25 19:37:57,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-25 19:37:57,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:57,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:57,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-11-25 19:37:57,599 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:57,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:57,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1373813729, now seen corresponding path program 1 times [2021-11-25 19:37:57,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:57,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738842343] [2021-11-25 19:37:57,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:57,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:57,947 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:57,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738842343] [2021-11-25 19:37:57,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738842343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:57,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:57,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 19:37:57,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553369811] [2021-11-25 19:37:57,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:57,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:37:57,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:57,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:37:57,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:37:57,948 INFO L87 Difference]: Start difference. First operand 396 states and 472 transitions. Second operand has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 11 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:59,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:59,362 INFO L93 Difference]: Finished difference Result 1047 states and 1307 transitions. [2021-11-25 19:37:59,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:37:59,362 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 11 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2021-11-25 19:37:59,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:59,363 INFO L225 Difference]: With dead ends: 1047 [2021-11-25 19:37:59,363 INFO L226 Difference]: Without dead ends: 873 [2021-11-25 19:37:59,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-25 19:37:59,364 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 1141 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:59,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1141 Valid, 2706 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 19:37:59,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2021-11-25 19:37:59,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 315. [2021-11-25 19:37:59,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 312 states have (on average 1.1923076923076923) internal successors, (372), 314 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:59,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 372 transitions. [2021-11-25 19:37:59,593 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 372 transitions. Word has length 122 [2021-11-25 19:37:59,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:59,594 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 372 transitions. [2021-11-25 19:37:59,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 11 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:37:59,594 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 372 transitions. [2021-11-25 19:37:59,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-25 19:37:59,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:59,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:59,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-11-25 19:37:59,595 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:37:59,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:59,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1431269891, now seen corresponding path program 1 times [2021-11-25 19:37:59,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:59,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702178835] [2021-11-25 19:37:59,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:59,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:37:59,709 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:59,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702178835] [2021-11-25 19:37:59,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702178835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:59,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:59,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:37:59,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269343211] [2021-11-25 19:37:59,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:59,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:37:59,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:59,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:37:59,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:37:59,711 INFO L87 Difference]: Start difference. First operand 315 states and 372 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:00,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:00,429 INFO L93 Difference]: Finished difference Result 475 states and 572 transitions. [2021-11-25 19:38:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 19:38:00,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2021-11-25 19:38:00,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:00,430 INFO L225 Difference]: With dead ends: 475 [2021-11-25 19:38:00,430 INFO L226 Difference]: Without dead ends: 467 [2021-11-25 19:38:00,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:38:00,430 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 575 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:00,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [575 Valid, 606 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:38:00,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-11-25 19:38:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 315. [2021-11-25 19:38:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 312 states have (on average 1.189102564102564) internal successors, (371), 314 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:00,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 371 transitions. [2021-11-25 19:38:00,654 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 371 transitions. Word has length 123 [2021-11-25 19:38:00,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:00,654 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 371 transitions. [2021-11-25 19:38:00,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:00,654 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 371 transitions. [2021-11-25 19:38:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-25 19:38:00,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:00,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:00,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-11-25 19:38:00,655 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:00,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:00,655 INFO L85 PathProgramCache]: Analyzing trace with hash 875840387, now seen corresponding path program 1 times [2021-11-25 19:38:00,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:00,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149246508] [2021-11-25 19:38:00,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:00,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:00,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:00,768 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:00,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149246508] [2021-11-25 19:38:00,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149246508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:00,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:00,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:38:00,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545290994] [2021-11-25 19:38:00,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:00,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:38:00,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:00,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:38:00,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:38:00,769 INFO L87 Difference]: Start difference. First operand 315 states and 371 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:01,579 INFO L93 Difference]: Finished difference Result 640 states and 784 transitions. [2021-11-25 19:38:01,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 19:38:01,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2021-11-25 19:38:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:01,580 INFO L225 Difference]: With dead ends: 640 [2021-11-25 19:38:01,580 INFO L226 Difference]: Without dead ends: 494 [2021-11-25 19:38:01,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:38:01,581 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 653 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:01,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [653 Valid, 747 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 19:38:01,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2021-11-25 19:38:01,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 315. [2021-11-25 19:38:01,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 312 states have (on average 1.1826923076923077) internal successors, (369), 314 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:01,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 369 transitions. [2021-11-25 19:38:01,816 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 369 transitions. Word has length 123 [2021-11-25 19:38:01,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:01,816 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 369 transitions. [2021-11-25 19:38:01,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:01,816 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 369 transitions. [2021-11-25 19:38:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-25 19:38:01,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:01,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:01,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-11-25 19:38:01,817 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:01,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:01,818 INFO L85 PathProgramCache]: Analyzing trace with hash -756360920, now seen corresponding path program 1 times [2021-11-25 19:38:01,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:01,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227042874] [2021-11-25 19:38:01,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:01,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:02,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:02,182 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:02,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227042874] [2021-11-25 19:38:02,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227042874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:02,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:02,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 19:38:02,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864894424] [2021-11-25 19:38:02,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:02,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 19:38:02,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:02,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 19:38:02,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-25 19:38:02,183 INFO L87 Difference]: Start difference. First operand 315 states and 369 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:04,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:04,877 INFO L93 Difference]: Finished difference Result 1198 states and 1509 transitions. [2021-11-25 19:38:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 19:38:04,877 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-25 19:38:04,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:04,878 INFO L225 Difference]: With dead ends: 1198 [2021-11-25 19:38:04,878 INFO L226 Difference]: Without dead ends: 1192 [2021-11-25 19:38:04,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-25 19:38:04,879 INFO L933 BasicCegarLoop]: 473 mSDtfsCounter, 1183 mSDsluCounter, 3566 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 3813 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:04,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1183 Valid, 3813 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 19:38:04,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2021-11-25 19:38:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 309. [2021-11-25 19:38:05,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 307 states have (on average 1.1791530944625408) internal successors, (362), 308 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:05,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 362 transitions. [2021-11-25 19:38:05,116 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 362 transitions. Word has length 125 [2021-11-25 19:38:05,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:05,116 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 362 transitions. [2021-11-25 19:38:05,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:05,116 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 362 transitions. [2021-11-25 19:38:05,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-25 19:38:05,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:05,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:05,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-11-25 19:38:05,117 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:05,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:05,117 INFO L85 PathProgramCache]: Analyzing trace with hash -18243096, now seen corresponding path program 1 times [2021-11-25 19:38:05,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:05,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922730647] [2021-11-25 19:38:05,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:05,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:06,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:06,968 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:06,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922730647] [2021-11-25 19:38:06,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922730647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:06,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:06,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2021-11-25 19:38:06,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179538980] [2021-11-25 19:38:06,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:06,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-25 19:38:06,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:06,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-25 19:38:06,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1269, Unknown=0, NotChecked=0, Total=1406 [2021-11-25 19:38:06,969 INFO L87 Difference]: Start difference. First operand 309 states and 362 transitions. Second operand has 38 states, 38 states have (on average 3.289473684210526) internal successors, (125), 37 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:11,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:11,808 INFO L93 Difference]: Finished difference Result 379 states and 436 transitions. [2021-11-25 19:38:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-25 19:38:11,809 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.289473684210526) internal successors, (125), 37 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-25 19:38:11,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:11,809 INFO L225 Difference]: With dead ends: 379 [2021-11-25 19:38:11,809 INFO L226 Difference]: Without dead ends: 370 [2021-11-25 19:38:11,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 929 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=739, Invalid=4231, Unknown=0, NotChecked=0, Total=4970 [2021-11-25 19:38:11,810 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 1242 mSDsluCounter, 3284 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:11,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1242 Valid, 3359 Invalid, 2577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 19:38:11,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-11-25 19:38:12,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 337. [2021-11-25 19:38:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 335 states have (on average 1.1791044776119404) internal successors, (395), 336 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:12,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 395 transitions. [2021-11-25 19:38:12,073 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 395 transitions. Word has length 125 [2021-11-25 19:38:12,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:12,073 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 395 transitions. [2021-11-25 19:38:12,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.289473684210526) internal successors, (125), 37 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:12,073 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 395 transitions. [2021-11-25 19:38:12,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-25 19:38:12,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:12,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:12,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-11-25 19:38:12,074 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:12,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:12,074 INFO L85 PathProgramCache]: Analyzing trace with hash 68856123, now seen corresponding path program 1 times [2021-11-25 19:38:12,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:12,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932964892] [2021-11-25 19:38:12,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:12,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:12,566 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:12,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932964892] [2021-11-25 19:38:12,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932964892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:12,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:12,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-25 19:38:12,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794009474] [2021-11-25 19:38:12,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:12,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-25 19:38:12,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:12,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-25 19:38:12,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:38:12,570 INFO L87 Difference]: Start difference. First operand 337 states and 395 transitions. Second operand has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:15,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:15,683 INFO L93 Difference]: Finished difference Result 920 states and 1133 transitions. [2021-11-25 19:38:15,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-25 19:38:15,683 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2021-11-25 19:38:15,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:15,684 INFO L225 Difference]: With dead ends: 920 [2021-11-25 19:38:15,684 INFO L226 Difference]: Without dead ends: 907 [2021-11-25 19:38:15,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2021-11-25 19:38:15,685 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1254 mSDsluCounter, 3912 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 4083 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:15,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1254 Valid, 4083 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:38:15,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2021-11-25 19:38:15,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 333. [2021-11-25 19:38:15,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 331 states have (on average 1.1752265861027191) internal successors, (389), 332 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:15,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 389 transitions. [2021-11-25 19:38:15,962 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 389 transitions. Word has length 126 [2021-11-25 19:38:15,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:15,962 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 389 transitions. [2021-11-25 19:38:15,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:15,962 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 389 transitions. [2021-11-25 19:38:15,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-25 19:38:15,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:15,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:15,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-11-25 19:38:15,963 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:15,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:15,964 INFO L85 PathProgramCache]: Analyzing trace with hash 653818872, now seen corresponding path program 1 times [2021-11-25 19:38:15,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:15,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652202725] [2021-11-25 19:38:15,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:15,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:16,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:16,283 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:16,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652202725] [2021-11-25 19:38:16,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652202725] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:16,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:16,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 19:38:16,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827241680] [2021-11-25 19:38:16,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:16,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:38:16,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:16,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:38:16,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:38:16,285 INFO L87 Difference]: Start difference. First operand 333 states and 389 transitions. Second operand has 12 states, 12 states have (on average 10.5) internal successors, (126), 11 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:17,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:17,737 INFO L93 Difference]: Finished difference Result 773 states and 953 transitions. [2021-11-25 19:38:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:38:17,738 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.5) internal successors, (126), 11 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2021-11-25 19:38:17,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:17,739 INFO L225 Difference]: With dead ends: 773 [2021-11-25 19:38:17,739 INFO L226 Difference]: Without dead ends: 761 [2021-11-25 19:38:17,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-25 19:38:17,739 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1132 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:17,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 1984 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:38:17,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2021-11-25 19:38:17,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 296. [2021-11-25 19:38:17,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.176271186440678) internal successors, (347), 295 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:17,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 347 transitions. [2021-11-25 19:38:17,979 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 347 transitions. Word has length 126 [2021-11-25 19:38:17,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:17,979 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 347 transitions. [2021-11-25 19:38:17,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.5) internal successors, (126), 11 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:17,979 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 347 transitions. [2021-11-25 19:38:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-25 19:38:17,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:17,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:17,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-11-25 19:38:17,980 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:17,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:17,981 INFO L85 PathProgramCache]: Analyzing trace with hash 761741703, now seen corresponding path program 1 times [2021-11-25 19:38:17,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:17,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443511115] [2021-11-25 19:38:17,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:17,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:18,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:18,081 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:18,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443511115] [2021-11-25 19:38:18,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443511115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:18,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:18,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:18,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704015209] [2021-11-25 19:38:18,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:18,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:18,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:18,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:18,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:18,083 INFO L87 Difference]: Start difference. First operand 296 states and 347 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:18,482 INFO L93 Difference]: Finished difference Result 417 states and 506 transitions. [2021-11-25 19:38:18,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:38:18,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2021-11-25 19:38:18,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:18,483 INFO L225 Difference]: With dead ends: 417 [2021-11-25 19:38:18,483 INFO L226 Difference]: Without dead ends: 360 [2021-11-25 19:38:18,483 INFO L932 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 [2021-11-25 19:38:18,483 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 86 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:18,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 410 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:38:18,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-25 19:38:18,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 350. [2021-11-25 19:38:18,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 349 states have (on average 1.1948424068767909) internal successors, (417), 349 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:18,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 417 transitions. [2021-11-25 19:38:18,808 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 417 transitions. Word has length 149 [2021-11-25 19:38:18,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:18,808 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 417 transitions. [2021-11-25 19:38:18,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:18,808 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 417 transitions. [2021-11-25 19:38:18,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-25 19:38:18,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:18,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:18,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-11-25 19:38:18,810 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:18,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:18,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1435394043, now seen corresponding path program 1 times [2021-11-25 19:38:18,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:18,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616523370] [2021-11-25 19:38:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:18,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:18,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:18,900 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:18,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616523370] [2021-11-25 19:38:18,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616523370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:18,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:18,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:18,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119749409] [2021-11-25 19:38:18,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:18,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:18,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:18,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:18,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:18,902 INFO L87 Difference]: Start difference. First operand 350 states and 417 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:19,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:19,695 INFO L93 Difference]: Finished difference Result 676 states and 847 transitions. [2021-11-25 19:38:19,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:38:19,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2021-11-25 19:38:19,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:19,696 INFO L225 Difference]: With dead ends: 676 [2021-11-25 19:38:19,696 INFO L226 Difference]: Without dead ends: 513 [2021-11-25 19:38:19,697 INFO L932 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 [2021-11-25 19:38:19,697 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 79 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:19,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 411 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:38:19,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2021-11-25 19:38:20,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 499. [2021-11-25 19:38:20,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 498 states have (on average 1.2309236947791165) internal successors, (613), 498 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:20,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 613 transitions. [2021-11-25 19:38:20,276 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 613 transitions. Word has length 152 [2021-11-25 19:38:20,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:20,276 INFO L470 AbstractCegarLoop]: Abstraction has 499 states and 613 transitions. [2021-11-25 19:38:20,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:20,277 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 613 transitions. [2021-11-25 19:38:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-25 19:38:20,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:20,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:20,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-11-25 19:38:20,278 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:20,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash 102295120, now seen corresponding path program 1 times [2021-11-25 19:38:20,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:20,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56692135] [2021-11-25 19:38:20,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:20,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:20,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:20,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56692135] [2021-11-25 19:38:20,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56692135] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:20,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:20,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:20,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419466507] [2021-11-25 19:38:20,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:20,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:20,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:20,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:20,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:20,365 INFO L87 Difference]: Start difference. First operand 499 states and 613 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:21,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:21,578 INFO L93 Difference]: Finished difference Result 1123 states and 1435 transitions. [2021-11-25 19:38:21,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:38:21,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2021-11-25 19:38:21,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:21,580 INFO L225 Difference]: With dead ends: 1123 [2021-11-25 19:38:21,580 INFO L226 Difference]: Without dead ends: 811 [2021-11-25 19:38:21,580 INFO L932 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 [2021-11-25 19:38:21,581 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 72 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:21,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 412 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:38:21,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2021-11-25 19:38:22,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 785. [2021-11-25 19:38:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 784 states have (on average 1.2589285714285714) internal successors, (987), 784 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:22,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 987 transitions. [2021-11-25 19:38:22,675 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 987 transitions. Word has length 155 [2021-11-25 19:38:22,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:22,675 INFO L470 AbstractCegarLoop]: Abstraction has 785 states and 987 transitions. [2021-11-25 19:38:22,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:22,675 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 987 transitions. [2021-11-25 19:38:22,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-25 19:38:22,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:22,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:22,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-11-25 19:38:22,676 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:22,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:22,676 INFO L85 PathProgramCache]: Analyzing trace with hash 507100104, now seen corresponding path program 1 times [2021-11-25 19:38:22,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:22,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805158247] [2021-11-25 19:38:22,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:22,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:22,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:22,792 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:22,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805158247] [2021-11-25 19:38:22,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805158247] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:22,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:22,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:22,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659891723] [2021-11-25 19:38:22,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:22,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:22,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:22,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:22,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:22,794 INFO L87 Difference]: Start difference. First operand 785 states and 987 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:24,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:24,884 INFO L93 Difference]: Finished difference Result 1981 states and 2557 transitions. [2021-11-25 19:38:24,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:38:24,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2021-11-25 19:38:24,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:24,885 INFO L225 Difference]: With dead ends: 1981 [2021-11-25 19:38:24,885 INFO L226 Difference]: Without dead ends: 1383 [2021-11-25 19:38:24,886 INFO L932 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 [2021-11-25 19:38:24,886 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 65 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:24,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 413 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:38:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2021-11-25 19:38:26,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1333. [2021-11-25 19:38:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1332 states have (on average 1.2755255255255256) internal successors, (1699), 1332 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1699 transitions. [2021-11-25 19:38:26,856 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1699 transitions. Word has length 158 [2021-11-25 19:38:26,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:26,856 INFO L470 AbstractCegarLoop]: Abstraction has 1333 states and 1699 transitions. [2021-11-25 19:38:26,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:26,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1699 transitions. [2021-11-25 19:38:26,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-25 19:38:26,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:26,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:26,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-11-25 19:38:26,857 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:26,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:26,857 INFO L85 PathProgramCache]: Analyzing trace with hash -923206139, now seen corresponding path program 1 times [2021-11-25 19:38:26,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:26,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895095741] [2021-11-25 19:38:26,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:26,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:26,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:26,944 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:26,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895095741] [2021-11-25 19:38:26,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895095741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:26,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:26,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:26,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122088615] [2021-11-25 19:38:26,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:26,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:26,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:26,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:26,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:26,946 INFO L87 Difference]: Start difference. First operand 1333 states and 1699 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:30,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:30,874 INFO L93 Difference]: Finished difference Result 3625 states and 4693 transitions. [2021-11-25 19:38:30,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:38:30,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2021-11-25 19:38:30,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:30,876 INFO L225 Difference]: With dead ends: 3625 [2021-11-25 19:38:30,876 INFO L226 Difference]: Without dead ends: 2479 [2021-11-25 19:38:30,878 INFO L932 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 [2021-11-25 19:38:30,878 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 58 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:30,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 414 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:38:30,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2021-11-25 19:38:34,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2381. [2021-11-25 19:38:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2380 states have (on average 1.2819327731092438) internal successors, (3051), 2380 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:34,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3051 transitions. [2021-11-25 19:38:34,689 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3051 transitions. Word has length 161 [2021-11-25 19:38:34,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:34,689 INFO L470 AbstractCegarLoop]: Abstraction has 2381 states and 3051 transitions. [2021-11-25 19:38:34,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:34,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3051 transitions. [2021-11-25 19:38:34,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-25 19:38:34,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:34,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:34,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-11-25 19:38:34,690 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:34,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:34,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1834312951, now seen corresponding path program 1 times [2021-11-25 19:38:34,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:34,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809195821] [2021-11-25 19:38:34,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:34,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:34,768 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:34,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809195821] [2021-11-25 19:38:34,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809195821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:34,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:34,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:34,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690383524] [2021-11-25 19:38:34,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:34,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:34,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:34,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:34,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:34,770 INFO L87 Difference]: Start difference. First operand 2381 states and 3051 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:42,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:42,351 INFO L93 Difference]: Finished difference Result 6769 states and 8749 transitions. [2021-11-25 19:38:42,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:38:42,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2021-11-25 19:38:42,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:42,355 INFO L225 Difference]: With dead ends: 6769 [2021-11-25 19:38:42,355 INFO L226 Difference]: Without dead ends: 4575 [2021-11-25 19:38:42,357 INFO L932 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 [2021-11-25 19:38:42,357 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 51 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:42,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 415 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:38:42,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2021-11-25 19:38:49,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 4381. [2021-11-25 19:38:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4381 states, 4380 states have (on average 1.2810502283105023) internal successors, (5611), 4380 states have internal predecessors, (5611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:49,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 5611 transitions. [2021-11-25 19:38:49,659 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 5611 transitions. Word has length 164 [2021-11-25 19:38:49,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:49,659 INFO L470 AbstractCegarLoop]: Abstraction has 4381 states and 5611 transitions. [2021-11-25 19:38:49,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:38:49,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 5611 transitions. [2021-11-25 19:38:49,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-25 19:38:49,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:49,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:49,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-11-25 19:38:49,661 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:38:49,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:49,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1951979049, now seen corresponding path program 1 times [2021-11-25 19:38:49,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:49,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798199602] [2021-11-25 19:38:49,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:49,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:49,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:38:49,765 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:49,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798199602] [2021-11-25 19:38:49,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798199602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:49,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:49,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:49,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791285161] [2021-11-25 19:38:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:49,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:49,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:49,767 INFO L87 Difference]: Start difference. First operand 4381 states and 5611 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:39:04,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:39:04,436 INFO L93 Difference]: Finished difference Result 12769 states and 16429 transitions. [2021-11-25 19:39:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:39:04,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2021-11-25 19:39:04,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:39:04,444 INFO L225 Difference]: With dead ends: 12769 [2021-11-25 19:39:04,444 INFO L226 Difference]: Without dead ends: 8575 [2021-11-25 19:39:04,447 INFO L932 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 [2021-11-25 19:39:04,448 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 40 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:39:04,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 415 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:39:04,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8575 states. [2021-11-25 19:39:19,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8575 to 8189. [2021-11-25 19:39:19,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8189 states, 8188 states have (on average 1.2754030288226674) internal successors, (10443), 8188 states have internal predecessors, (10443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:39:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8189 states to 8189 states and 10443 transitions. [2021-11-25 19:39:19,031 INFO L78 Accepts]: Start accepts. Automaton has 8189 states and 10443 transitions. Word has length 167 [2021-11-25 19:39:19,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:39:19,031 INFO L470 AbstractCegarLoop]: Abstraction has 8189 states and 10443 transitions. [2021-11-25 19:39:19,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:39:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 8189 states and 10443 transitions. [2021-11-25 19:39:19,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-25 19:39:19,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:39:19,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:39:19,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-11-25 19:39:19,033 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:39:19,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:39:19,034 INFO L85 PathProgramCache]: Analyzing trace with hash 568446086, now seen corresponding path program 1 times [2021-11-25 19:39:19,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:39:19,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861839459] [2021-11-25 19:39:19,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:39:19,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:39:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:39:19,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:39:19,182 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:39:19,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861839459] [2021-11-25 19:39:19,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861839459] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:39:19,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:39:19,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 19:39:19,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165650551] [2021-11-25 19:39:19,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:39:19,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 19:39:19,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:39:19,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 19:39:19,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:39:19,185 INFO L87 Difference]: Start difference. First operand 8189 states and 10443 transitions. Second operand has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:03,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:40:03,215 INFO L93 Difference]: Finished difference Result 33020 states and 42424 transitions. [2021-11-25 19:40:03,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:40:03,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2021-11-25 19:40:03,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:40:03,243 INFO L225 Difference]: With dead ends: 33020 [2021-11-25 19:40:03,243 INFO L226 Difference]: Without dead ends: 25018 [2021-11-25 19:40:03,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:40:03,253 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 1651 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 3365 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:40:03,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1651 Valid, 3365 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 19:40:03,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25018 states. [2021-11-25 19:40:23,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25018 to 11261. [2021-11-25 19:40:23,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11261 states, 11260 states have (on average 1.2684724689165185) internal successors, (14283), 11260 states have internal predecessors, (14283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:23,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11261 states to 11261 states and 14283 transitions. [2021-11-25 19:40:23,537 INFO L78 Accepts]: Start accepts. Automaton has 11261 states and 14283 transitions. Word has length 170 [2021-11-25 19:40:23,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:40:23,537 INFO L470 AbstractCegarLoop]: Abstraction has 11261 states and 14283 transitions. [2021-11-25 19:40:23,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:23,537 INFO L276 IsEmpty]: Start isEmpty. Operand 11261 states and 14283 transitions. [2021-11-25 19:40:23,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-25 19:40:23,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:40:23,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:40:23,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-11-25 19:40:23,538 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:40:23,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:40:23,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1805355554, now seen corresponding path program 1 times [2021-11-25 19:40:23,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:40:23,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289426057] [2021-11-25 19:40:23,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:40:23,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:40:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:40:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:40:23,763 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:40:23,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289426057] [2021-11-25 19:40:23,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289426057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:40:23,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:40:23,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 19:40:23,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632709706] [2021-11-25 19:40:23,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:40:23,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 19:40:23,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:40:23,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 19:40:23,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:40:23,764 INFO L87 Difference]: Start difference. First operand 11261 states and 14283 transitions. Second operand has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:40:44,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:40:44,520 INFO L93 Difference]: Finished difference Result 22337 states and 28365 transitions. [2021-11-25 19:40:44,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 19:40:44,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2021-11-25 19:40:44,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:40:44,531 INFO L225 Difference]: With dead ends: 22337 [2021-11-25 19:40:44,531 INFO L226 Difference]: Without dead ends: 11263 [2021-11-25 19:40:44,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-11-25 19:40:44,540 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 1146 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:40:44,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 634 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:40:44,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11263 states. [2021-11-25 19:41:04,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11263 to 11261. [2021-11-25 19:41:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11261 states, 11260 states have (on average 1.2682948490230905) internal successors, (14281), 11260 states have internal predecessors, (14281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:41:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11261 states to 11261 states and 14281 transitions. [2021-11-25 19:41:04,714 INFO L78 Accepts]: Start accepts. Automaton has 11261 states and 14281 transitions. Word has length 172 [2021-11-25 19:41:04,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:41:04,714 INFO L470 AbstractCegarLoop]: Abstraction has 11261 states and 14281 transitions. [2021-11-25 19:41:04,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:41:04,715 INFO L276 IsEmpty]: Start isEmpty. Operand 11261 states and 14281 transitions. [2021-11-25 19:41:04,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-25 19:41:04,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:41:04,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:41:04,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-11-25 19:41:04,716 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:41:04,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:41:04,716 INFO L85 PathProgramCache]: Analyzing trace with hash 857155489, now seen corresponding path program 1 times [2021-11-25 19:41:04,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:41:04,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414612299] [2021-11-25 19:41:04,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:41:04,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:41:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:41:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:41:04,809 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:41:04,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414612299] [2021-11-25 19:41:04,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414612299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:41:04,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:41:04,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:41:04,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059344569] [2021-11-25 19:41:04,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:41:04,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:41:04,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:41:04,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:41:04,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:41:04,812 INFO L87 Difference]: Start difference. First operand 11261 states and 14281 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:41:30,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:41:30,166 INFO L93 Difference]: Finished difference Result 25345 states and 32201 transitions. [2021-11-25 19:41:30,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:41:30,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2021-11-25 19:41:30,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:41:30,182 INFO L225 Difference]: With dead ends: 25345 [2021-11-25 19:41:30,182 INFO L226 Difference]: Without dead ends: 14271 [2021-11-25 19:41:30,193 INFO L932 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 [2021-11-25 19:41:30,193 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 110 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:41:30,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 324 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:41:30,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14271 states. [2021-11-25 19:41:55,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14271 to 14269. [2021-11-25 19:41:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14269 states, 14268 states have (on average 1.2609335576114382) internal successors, (17991), 14268 states have internal predecessors, (17991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:41:55,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14269 states to 14269 states and 17991 transitions. [2021-11-25 19:41:55,833 INFO L78 Accepts]: Start accepts. Automaton has 14269 states and 17991 transitions. Word has length 172 [2021-11-25 19:41:55,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:41:55,833 INFO L470 AbstractCegarLoop]: Abstraction has 14269 states and 17991 transitions. [2021-11-25 19:41:55,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:41:55,833 INFO L276 IsEmpty]: Start isEmpty. Operand 14269 states and 17991 transitions. [2021-11-25 19:41:55,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-25 19:41:55,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:41:55,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:41:55,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-11-25 19:41:55,834 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:41:55,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:41:55,834 INFO L85 PathProgramCache]: Analyzing trace with hash 2143084327, now seen corresponding path program 1 times [2021-11-25 19:41:55,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:41:55,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727574610] [2021-11-25 19:41:55,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:41:55,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:41:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:41:55,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:41:55,972 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:41:55,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727574610] [2021-11-25 19:41:55,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727574610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:41:55,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:41:55,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:41:55,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072892543] [2021-11-25 19:41:55,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:41:55,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:41:55,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:41:55,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:41:55,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:41:55,975 INFO L87 Difference]: Start difference. First operand 14269 states and 17991 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:42:32,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:42:32,534 INFO L93 Difference]: Finished difference Result 20450 states and 25529 transitions. [2021-11-25 19:42:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:42:32,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2021-11-25 19:42:32,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:42:32,555 INFO L225 Difference]: With dead ends: 20450 [2021-11-25 19:42:32,555 INFO L226 Difference]: Without dead ends: 20448 [2021-11-25 19:42:32,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-11-25 19:42:32,559 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 453 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:42:32,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1342 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:42:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20448 states. [2021-11-25 19:42:59,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20448 to 14269. [2021-11-25 19:42:59,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14269 states, 14268 states have (on average 1.2474768713204374) internal successors, (17799), 14268 states have internal predecessors, (17799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:42:59,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14269 states to 14269 states and 17799 transitions. [2021-11-25 19:42:59,342 INFO L78 Accepts]: Start accepts. Automaton has 14269 states and 17799 transitions. Word has length 173 [2021-11-25 19:42:59,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:42:59,342 INFO L470 AbstractCegarLoop]: Abstraction has 14269 states and 17799 transitions. [2021-11-25 19:42:59,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:42:59,342 INFO L276 IsEmpty]: Start isEmpty. Operand 14269 states and 17799 transitions. [2021-11-25 19:42:59,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-25 19:42:59,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:42:59,344 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:42:59,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-11-25 19:42:59,344 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:42:59,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:42:59,345 INFO L85 PathProgramCache]: Analyzing trace with hash 66863863, now seen corresponding path program 1 times [2021-11-25 19:42:59,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:42:59,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678794459] [2021-11-25 19:42:59,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:42:59,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:42:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:42:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-25 19:42:59,514 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:42:59,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678794459] [2021-11-25 19:42:59,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678794459] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:42:59,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:42:59,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:42:59,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901093193] [2021-11-25 19:42:59,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:42:59,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:42:59,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:42:59,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:42:59,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:42:59,516 INFO L87 Difference]: Start difference. First operand 14269 states and 17799 transitions. Second operand has 8 states, 8 states have (on average 22.875) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:43:41,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:43:41,504 INFO L93 Difference]: Finished difference Result 36050 states and 45001 transitions. [2021-11-25 19:43:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 19:43:41,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 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 197 [2021-11-25 19:43:41,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:43:41,529 INFO L225 Difference]: With dead ends: 36050 [2021-11-25 19:43:41,529 INFO L226 Difference]: Without dead ends: 21951 [2021-11-25 19:43:41,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-11-25 19:43:41,540 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 720 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:43:41,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 562 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:43:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21951 states. [2021-11-25 19:44:08,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21951 to 14269. [2021-11-25 19:44:08,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14269 states, 14268 states have (on average 1.247336697504906) internal successors, (17797), 14268 states have internal predecessors, (17797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:44:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14269 states to 14269 states and 17797 transitions. [2021-11-25 19:44:08,727 INFO L78 Accepts]: Start accepts. Automaton has 14269 states and 17797 transitions. Word has length 197 [2021-11-25 19:44:08,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:44:08,727 INFO L470 AbstractCegarLoop]: Abstraction has 14269 states and 17797 transitions. [2021-11-25 19:44:08,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:44:08,728 INFO L276 IsEmpty]: Start isEmpty. Operand 14269 states and 17797 transitions. [2021-11-25 19:44:08,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-25 19:44:08,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:44:08,729 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:44:08,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-11-25 19:44:08,729 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:44:08,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:44:08,730 INFO L85 PathProgramCache]: Analyzing trace with hash -253256196, now seen corresponding path program 1 times [2021-11-25 19:44:08,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:44:08,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170290525] [2021-11-25 19:44:08,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:44:08,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:44:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:44:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-25 19:44:10,637 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:44:10,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170290525] [2021-11-25 19:44:10,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170290525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:44:10,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:44:10,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-11-25 19:44:10,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001488579] [2021-11-25 19:44:10,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:44:10,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-25 19:44:10,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:44:10,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-25 19:44:10,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1183, Unknown=0, NotChecked=0, Total=1260 [2021-11-25 19:44:10,639 INFO L87 Difference]: Start difference. First operand 14269 states and 17797 transitions. Second operand has 36 states, 36 states have (on average 5.138888888888889) internal successors, (185), 36 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:45:06,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:45:06,226 INFO L93 Difference]: Finished difference Result 42506 states and 53069 transitions. [2021-11-25 19:45:06,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-25 19:45:06,226 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.138888888888889) internal successors, (185), 36 states have internal predecessors, (185), 0 states have call successors, (0), 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 199 [2021-11-25 19:45:06,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:45:06,260 INFO L225 Difference]: With dead ends: 42506 [2021-11-25 19:45:06,260 INFO L226 Difference]: Without dead ends: 28413 [2021-11-25 19:45:06,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=572, Invalid=3984, Unknown=0, NotChecked=0, Total=4556 [2021-11-25 19:45:06,273 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1060 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 2662 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:45:06,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 3490 Invalid, 2698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2662 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 19:45:06,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28413 states. [2021-11-25 19:45:33,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28413 to 14299. [2021-11-25 19:45:33,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14299 states, 14298 states have (on average 1.2470974961533081) internal successors, (17831), 14298 states have internal predecessors, (17831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:45:33,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14299 states to 14299 states and 17831 transitions. [2021-11-25 19:45:33,035 INFO L78 Accepts]: Start accepts. Automaton has 14299 states and 17831 transitions. Word has length 199 [2021-11-25 19:45:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:45:33,035 INFO L470 AbstractCegarLoop]: Abstraction has 14299 states and 17831 transitions. [2021-11-25 19:45:33,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.138888888888889) internal successors, (185), 36 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:45:33,036 INFO L276 IsEmpty]: Start isEmpty. Operand 14299 states and 17831 transitions. [2021-11-25 19:45:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-25 19:45:33,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:45:33,038 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:45:33,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-11-25 19:45:33,038 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-25 19:45:33,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:45:33,038 INFO L85 PathProgramCache]: Analyzing trace with hash -28250534, now seen corresponding path program 1 times [2021-11-25 19:45:33,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:45:33,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978758485] [2021-11-25 19:45:33,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:45:33,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:45:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:45:45,819 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:45:45,819 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:45:45,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978758485] [2021-11-25 19:45:45,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978758485] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:45:45,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949863412] [2021-11-25 19:45:45,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:45:45,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:45:45,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:45:45,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:45:45,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d28e06-3709-4302-bdf2-0a5fb2d3b0bc/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:45:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:45:46,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 2134 conjuncts, 143 conjunts are in the unsatisfiable core [2021-11-25 19:45:46,853 INFO L286 TraceCheckSpWp]: Computing forward predicates...