./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5990b1cf211e12a23ca85722a0e539783495fb8504bce43e0d5e789fe089f178 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:32:30,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:32:30,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:32:30,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:32:30,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:32:30,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:32:30,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:32:30,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:32:30,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:32:30,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:32:30,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:32:30,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:32:30,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:32:30,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:32:30,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:32:30,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:32:30,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:32:30,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:32:30,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:32:30,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:32:30,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:32:30,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:32:30,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:32:30,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:32:30,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:32:30,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:32:30,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:32:30,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:32:30,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:32:30,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:32:30,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:32:30,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:32:30,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:32:30,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:32:30,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:32:30,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:32:30,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:32:30,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:32:30,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:32:30,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:32:30,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:32:30,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:32:30,997 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:32:30,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:32:30,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:32:30,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:32:30,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:32:31,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:32:31,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:32:31,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:32:31,002 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:32:31,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:32:31,002 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:32:31,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:32:31,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:32:31,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:32:31,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:32:31,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:32:31,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:32:31,004 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:32:31,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:32:31,005 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:32:31,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:32:31,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:32:31,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:32:31,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:32:31,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:32:31,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:32:31,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:32:31,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:32:31,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:32:31,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:32:31,009 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:32:31,009 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:32:31,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:32:31,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:32:31,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5990b1cf211e12a23ca85722a0e539783495fb8504bce43e0d5e789fe089f178 [2021-11-13 18:32:31,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:32:31,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:32:31,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:32:31,332 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:32:31,333 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:32:31,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-11-13 18:32:31,417 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/data/5e4336018/5cb4c63995d941318d7db16f425da437/FLAG3a313e839 [2021-11-13 18:32:32,209 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:32:32,210 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-11-13 18:32:32,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/data/5e4336018/5cb4c63995d941318d7db16f425da437/FLAG3a313e839 [2021-11-13 18:32:32,373 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/data/5e4336018/5cb4c63995d941318d7db16f425da437 [2021-11-13 18:32:32,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:32:32,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:32:32,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:32:32,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:32:32,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:32:32,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:32:32" (1/1) ... [2021-11-13 18:32:32,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71aa3329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:32, skipping insertion in model container [2021-11-13 18:32:32,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:32:32" (1/1) ... [2021-11-13 18:32:32,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:32:32,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:32:32,955 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[18815,18828] [2021-11-13 18:32:33,031 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[25895,25908] [2021-11-13 18:32:33,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[29420,29433] [2021-11-13 18:32:33,077 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32798,32811] [2021-11-13 18:32:33,098 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[36856,36869] [2021-11-13 18:32:33,115 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[40310,40323] [2021-11-13 18:32:33,132 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[43875,43888] [2021-11-13 18:32:33,148 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[47290,47303] [2021-11-13 18:32:33,166 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[50969,50982] [2021-11-13 18:32:33,183 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[54551,54564] [2021-11-13 18:32:33,199 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[58080,58093] [2021-11-13 18:32:33,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:32:33,266 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:32:33,445 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[18815,18828] [2021-11-13 18:32:33,506 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[25895,25908] [2021-11-13 18:32:33,548 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[29420,29433] [2021-11-13 18:32:33,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32798,32811] [2021-11-13 18:32:33,615 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[36856,36869] [2021-11-13 18:32:33,641 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[40310,40323] [2021-11-13 18:32:33,659 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[43875,43888] [2021-11-13 18:32:33,671 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[47290,47303] [2021-11-13 18:32:33,683 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[50969,50982] [2021-11-13 18:32:33,695 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[54551,54564] [2021-11-13 18:32:33,708 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[58080,58093] [2021-11-13 18:32:33,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:32:33,768 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:32:33,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33 WrapperNode [2021-11-13 18:32:33,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:32:33,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:32:33,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:32:33,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:32:33,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (1/1) ... [2021-11-13 18:32:33,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (1/1) ... [2021-11-13 18:32:33,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:32:33,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:32:33,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:32:33,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:32:33,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (1/1) ... [2021-11-13 18:32:33,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (1/1) ... [2021-11-13 18:32:33,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (1/1) ... [2021-11-13 18:32:33,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (1/1) ... [2021-11-13 18:32:34,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (1/1) ... [2021-11-13 18:32:34,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (1/1) ... [2021-11-13 18:32:34,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (1/1) ... [2021-11-13 18:32:34,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:32:34,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:32:34,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:32:34,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:32:34,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (1/1) ... [2021-11-13 18:32:34,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:32:34,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:32:34,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:32:34,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:32:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:32:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:32:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:32:34,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:32:36,566 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:32:36,567 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:32:36,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:32:36 BoogieIcfgContainer [2021-11-13 18:32:36,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:32:36,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:32:36,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:32:36,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:32:36,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:32:32" (1/3) ... [2021-11-13 18:32:36,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de6bb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:32:36, skipping insertion in model container [2021-11-13 18:32:36,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:33" (2/3) ... [2021-11-13 18:32:36,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de6bb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:32:36, skipping insertion in model container [2021-11-13 18:32:36,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:32:36" (3/3) ... [2021-11-13 18:32:36,584 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-11-13 18:32:36,590 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:32:36,590 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-13 18:32:36,661 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:32:36,669 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:32:36,670 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-13 18:32:36,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 558 states have (on average 1.7831541218637992) internal successors, (995), 569 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:36,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-13 18:32:36,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:36,731 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] [2021-11-13 18:32:36,732 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:36,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash 646480323, now seen corresponding path program 1 times [2021-11-13 18:32:36,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:36,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697111938] [2021-11-13 18:32:36,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:36,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:37,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:37,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697111938] [2021-11-13 18:32:37,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697111938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:37,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:37,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:32:37,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110458588] [2021-11-13 18:32:37,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:37,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:32:37,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:37,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:32:37,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:32:37,409 INFO L87 Difference]: Start difference. First operand has 570 states, 558 states have (on average 1.7831541218637992) internal successors, (995), 569 states have internal predecessors, (995), 0 states have call successors, (0), 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 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:38,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:38,239 INFO L93 Difference]: Finished difference Result 785 states and 1334 transitions. [2021-11-13 18:32:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:32:38,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-11-13 18:32:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:38,271 INFO L225 Difference]: With dead ends: 785 [2021-11-13 18:32:38,271 INFO L226 Difference]: Without dead ends: 503 [2021-11-13 18:32:38,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:32:38,287 INFO L933 BasicCegarLoop]: 489 mSDtfsCounter, 2416 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 471.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2416 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.80ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 597.78ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:38,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2416 Valid, 551 Invalid, 403 Unknown, 0 Unchecked, 24.80ms Time], IncrementalHoareTripleChecker [37 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 597.78ms Time] [2021-11-13 18:32:38,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-11-13 18:32:38,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2021-11-13 18:32:38,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 492 states have (on average 1.274390243902439) internal successors, (627), 502 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:38,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 627 transitions. [2021-11-13 18:32:38,411 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 627 transitions. Word has length 60 [2021-11-13 18:32:38,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:38,413 INFO L470 AbstractCegarLoop]: Abstraction has 503 states and 627 transitions. [2021-11-13 18:32:38,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:38,413 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 627 transitions. [2021-11-13 18:32:38,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-13 18:32:38,425 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:38,425 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] [2021-11-13 18:32:38,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:32:38,426 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:38,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:38,430 INFO L85 PathProgramCache]: Analyzing trace with hash 221242932, now seen corresponding path program 1 times [2021-11-13 18:32:38,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:38,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722247270] [2021-11-13 18:32:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:38,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:38,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:38,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:38,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722247270] [2021-11-13 18:32:38,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722247270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:38,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:38,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:32:38,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929076092] [2021-11-13 18:32:38,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:38,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:32:38,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:38,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:32:38,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:32:38,611 INFO L87 Difference]: Start difference. First operand 503 states and 627 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:38,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:38,943 INFO L93 Difference]: Finished difference Result 637 states and 796 transitions. [2021-11-13 18:32:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:32:38,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-11-13 18:32:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:38,947 INFO L225 Difference]: With dead ends: 637 [2021-11-13 18:32:38,947 INFO L226 Difference]: Without dead ends: 381 [2021-11-13 18:32:38,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:32:38,950 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 1366 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 210.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.97ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 268.38ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:38,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1366 Valid, 266 Invalid, 243 Unknown, 0 Unchecked, 5.97ms Time], IncrementalHoareTripleChecker [19 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 268.38ms Time] [2021-11-13 18:32:38,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-11-13 18:32:38,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2021-11-13 18:32:38,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 370 states have (on average 1.2864864864864864) internal successors, (476), 380 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 476 transitions. [2021-11-13 18:32:38,971 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 476 transitions. Word has length 60 [2021-11-13 18:32:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:38,972 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 476 transitions. [2021-11-13 18:32:38,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 476 transitions. [2021-11-13 18:32:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-13 18:32:38,974 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:38,974 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] [2021-11-13 18:32:38,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:32:38,974 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:38,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:38,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2147344789, now seen corresponding path program 1 times [2021-11-13 18:32:38,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:38,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570512420] [2021-11-13 18:32:38,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:38,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:39,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:39,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:39,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570512420] [2021-11-13 18:32:39,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570512420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:39,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:39,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:32:39,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878941259] [2021-11-13 18:32:39,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:39,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:32:39,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:39,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:32:39,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:32:39,074 INFO L87 Difference]: Start difference. First operand 381 states and 476 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:39,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:39,378 INFO L93 Difference]: Finished difference Result 539 states and 682 transitions. [2021-11-13 18:32:39,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:32:39,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-11-13 18:32:39,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:39,381 INFO L225 Difference]: With dead ends: 539 [2021-11-13 18:32:39,381 INFO L226 Difference]: Without dead ends: 335 [2021-11-13 18:32:39,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:32:39,385 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 1218 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 206.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.69ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 247.95ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:39,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1218 Valid, 240 Invalid, 199 Unknown, 0 Unchecked, 4.69ms Time], IncrementalHoareTripleChecker [12 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 247.95ms Time] [2021-11-13 18:32:39,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-11-13 18:32:39,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2021-11-13 18:32:39,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 324 states have (on average 1.2993827160493827) internal successors, (421), 334 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 421 transitions. [2021-11-13 18:32:39,411 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 421 transitions. Word has length 60 [2021-11-13 18:32:39,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:39,413 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 421 transitions. [2021-11-13 18:32:39,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:39,413 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 421 transitions. [2021-11-13 18:32:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-13 18:32:39,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:39,415 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] [2021-11-13 18:32:39,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:32:39,417 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:39,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:39,419 INFO L85 PathProgramCache]: Analyzing trace with hash 604643521, now seen corresponding path program 1 times [2021-11-13 18:32:39,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:39,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882197025] [2021-11-13 18:32:39,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:39,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:39,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:39,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:39,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882197025] [2021-11-13 18:32:39,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882197025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:39,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:39,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:32:39,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348207958] [2021-11-13 18:32:39,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:39,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:32:39,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:39,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:32:39,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:32:39,563 INFO L87 Difference]: Start difference. First operand 335 states and 421 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:39,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:39,742 INFO L93 Difference]: Finished difference Result 433 states and 540 transitions. [2021-11-13 18:32:39,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:32:39,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2021-11-13 18:32:39,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:39,745 INFO L225 Difference]: With dead ends: 433 [2021-11-13 18:32:39,746 INFO L226 Difference]: Without dead ends: 261 [2021-11-13 18:32:39,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:32:39,747 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 899 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.02ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.78ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:39,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [899 Valid, 209 Invalid, 155 Unknown, 0 Unchecked, 3.02ms Time], IncrementalHoareTripleChecker [18 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 139.78ms Time] [2021-11-13 18:32:39,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-11-13 18:32:39,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2021-11-13 18:32:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.296) internal successors, (324), 260 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:39,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 324 transitions. [2021-11-13 18:32:39,768 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 324 transitions. Word has length 62 [2021-11-13 18:32:39,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:39,768 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 324 transitions. [2021-11-13 18:32:39,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:39,769 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 324 transitions. [2021-11-13 18:32:39,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-13 18:32:39,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:39,770 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] [2021-11-13 18:32:39,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:32:39,771 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:39,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:39,771 INFO L85 PathProgramCache]: Analyzing trace with hash -699288056, now seen corresponding path program 1 times [2021-11-13 18:32:39,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:39,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021897357] [2021-11-13 18:32:39,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:39,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:39,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:39,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021897357] [2021-11-13 18:32:39,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021897357] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:39,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:39,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:32:39,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732133050] [2021-11-13 18:32:39,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:39,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:32:39,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:39,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:32:39,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:32:39,942 INFO L87 Difference]: Start difference. First operand 261 states and 324 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:40,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:40,671 INFO L93 Difference]: Finished difference Result 607 states and 794 transitions. [2021-11-13 18:32:40,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:32:40,672 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2021-11-13 18:32:40,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:40,676 INFO L225 Difference]: With dead ends: 607 [2021-11-13 18:32:40,676 INFO L226 Difference]: Without dead ends: 515 [2021-11-13 18:32:40,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:32:40,678 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 1630 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 397.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.42ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 488.46ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:40,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1630 Valid, 925 Invalid, 694 Unknown, 0 Unchecked, 10.42ms Time], IncrementalHoareTripleChecker [25 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 488.46ms Time] [2021-11-13 18:32:40,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-11-13 18:32:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 261. [2021-11-13 18:32:40,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.292) internal successors, (323), 260 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 323 transitions. [2021-11-13 18:32:40,715 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 323 transitions. Word has length 64 [2021-11-13 18:32:40,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:40,716 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 323 transitions. [2021-11-13 18:32:40,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:40,716 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 323 transitions. [2021-11-13 18:32:40,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-13 18:32:40,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:40,717 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] [2021-11-13 18:32:40,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:32:40,718 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:40,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:40,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1796013608, now seen corresponding path program 1 times [2021-11-13 18:32:40,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:40,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055253969] [2021-11-13 18:32:40,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:40,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:40,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:40,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055253969] [2021-11-13 18:32:40,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055253969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:40,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:40,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:32:40,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854907194] [2021-11-13 18:32:40,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:40,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:32:40,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:40,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:32:40,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:32:40,912 INFO L87 Difference]: Start difference. First operand 261 states and 323 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:41,592 INFO L93 Difference]: Finished difference Result 509 states and 652 transitions. [2021-11-13 18:32:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:32:41,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2021-11-13 18:32:41,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:41,596 INFO L225 Difference]: With dead ends: 509 [2021-11-13 18:32:41,597 INFO L226 Difference]: Without dead ends: 503 [2021-11-13 18:32:41,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:32:41,598 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 1073 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 371.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.24ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 455.94ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:41,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1073 Valid, 951 Invalid, 705 Unknown, 0 Unchecked, 8.24ms Time], IncrementalHoareTripleChecker [40 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 455.94ms Time] [2021-11-13 18:32:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-11-13 18:32:41,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 261. [2021-11-13 18:32:41,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.288) internal successors, (322), 260 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:41,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 322 transitions. [2021-11-13 18:32:41,628 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 322 transitions. Word has length 64 [2021-11-13 18:32:41,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:41,629 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 322 transitions. [2021-11-13 18:32:41,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:41,629 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 322 transitions. [2021-11-13 18:32:41,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-13 18:32:41,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:41,631 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] [2021-11-13 18:32:41,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:32:41,631 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:41,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:41,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1577721816, now seen corresponding path program 1 times [2021-11-13 18:32:41,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:41,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122887741] [2021-11-13 18:32:41,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:41,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:41,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:41,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:41,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122887741] [2021-11-13 18:32:41,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122887741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:41,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:41,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:32:41,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299129998] [2021-11-13 18:32:41,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:41,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:32:41,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:41,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:32:41,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:32:41,806 INFO L87 Difference]: Start difference. First operand 261 states and 322 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:42,268 INFO L93 Difference]: Finished difference Result 516 states and 638 transitions. [2021-11-13 18:32:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:32:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2021-11-13 18:32:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:42,272 INFO L225 Difference]: With dead ends: 516 [2021-11-13 18:32:42,272 INFO L226 Difference]: Without dead ends: 375 [2021-11-13 18:32:42,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:32:42,274 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 1528 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 263.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.29ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 322.45ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:42,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1528 Valid, 492 Invalid, 397 Unknown, 0 Unchecked, 7.29ms Time], IncrementalHoareTripleChecker [36 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 322.45ms Time] [2021-11-13 18:32:42,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-11-13 18:32:42,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 261. [2021-11-13 18:32:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.284) internal successors, (321), 260 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 321 transitions. [2021-11-13 18:32:42,306 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 321 transitions. Word has length 64 [2021-11-13 18:32:42,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:42,306 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 321 transitions. [2021-11-13 18:32:42,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:42,307 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 321 transitions. [2021-11-13 18:32:42,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-13 18:32:42,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:42,308 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] [2021-11-13 18:32:42,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:32:42,309 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:42,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:42,309 INFO L85 PathProgramCache]: Analyzing trace with hash -295025225, now seen corresponding path program 1 times [2021-11-13 18:32:42,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:42,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655813870] [2021-11-13 18:32:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:42,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:42,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:42,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:42,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655813870] [2021-11-13 18:32:42,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655813870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:42,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:42,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:32:42,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085180522] [2021-11-13 18:32:42,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:42,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:32:42,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:42,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:32:42,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:32:42,478 INFO L87 Difference]: Start difference. First operand 261 states and 321 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:43,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:43,437 INFO L93 Difference]: Finished difference Result 560 states and 726 transitions. [2021-11-13 18:32:43,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:32:43,438 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-11-13 18:32:43,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:43,442 INFO L225 Difference]: With dead ends: 560 [2021-11-13 18:32:43,442 INFO L226 Difference]: Without dead ends: 503 [2021-11-13 18:32:43,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-13 18:32:43,454 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 1944 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 494.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.64ms SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 630.40ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:43,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1944 Valid, 946 Invalid, 758 Unknown, 0 Unchecked, 12.64ms Time], IncrementalHoareTripleChecker [78 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 630.40ms Time] [2021-11-13 18:32:43,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-11-13 18:32:43,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 261. [2021-11-13 18:32:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.28) internal successors, (320), 260 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:43,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 320 transitions. [2021-11-13 18:32:43,493 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 320 transitions. Word has length 65 [2021-11-13 18:32:43,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:43,494 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 320 transitions. [2021-11-13 18:32:43,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:43,494 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 320 transitions. [2021-11-13 18:32:43,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-13 18:32:43,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:43,502 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] [2021-11-13 18:32:43,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:32:43,503 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:43,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:43,503 INFO L85 PathProgramCache]: Analyzing trace with hash -535072361, now seen corresponding path program 1 times [2021-11-13 18:32:43,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:43,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044141911] [2021-11-13 18:32:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:43,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:43,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:43,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:43,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044141911] [2021-11-13 18:32:43,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044141911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:43,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:43,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:32:43,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364450919] [2021-11-13 18:32:43,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:43,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:32:43,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:43,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:32:43,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:32:43,739 INFO L87 Difference]: Start difference. First operand 261 states and 320 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:44,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:44,664 INFO L93 Difference]: Finished difference Result 579 states and 754 transitions. [2021-11-13 18:32:44,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:32:44,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-11-13 18:32:44,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:44,672 INFO L225 Difference]: With dead ends: 579 [2021-11-13 18:32:44,673 INFO L226 Difference]: Without dead ends: 511 [2021-11-13 18:32:44,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:32:44,677 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 1627 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 508.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.32ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 616.93ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:44,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1627 Valid, 1091 Invalid, 766 Unknown, 0 Unchecked, 18.32ms Time], IncrementalHoareTripleChecker [37 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 616.93ms Time] [2021-11-13 18:32:44,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-11-13 18:32:44,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 261. [2021-11-13 18:32:44,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.276) internal successors, (319), 260 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 319 transitions. [2021-11-13 18:32:44,716 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 319 transitions. Word has length 65 [2021-11-13 18:32:44,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:44,717 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 319 transitions. [2021-11-13 18:32:44,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:44,717 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 319 transitions. [2021-11-13 18:32:44,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 18:32:44,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:44,719 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] [2021-11-13 18:32:44,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:32:44,719 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:44,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:44,720 INFO L85 PathProgramCache]: Analyzing trace with hash -168692467, now seen corresponding path program 1 times [2021-11-13 18:32:44,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:44,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031934607] [2021-11-13 18:32:44,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:44,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:44,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:44,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031934607] [2021-11-13 18:32:44,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031934607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:44,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:44,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:32:44,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838462696] [2021-11-13 18:32:44,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:44,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:32:44,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:44,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:32:44,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:32:44,930 INFO L87 Difference]: Start difference. First operand 261 states and 319 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:45,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:45,808 INFO L93 Difference]: Finished difference Result 530 states and 679 transitions. [2021-11-13 18:32:45,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:32:45,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-11-13 18:32:45,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:45,813 INFO L225 Difference]: With dead ends: 530 [2021-11-13 18:32:45,813 INFO L226 Difference]: Without dead ends: 511 [2021-11-13 18:32:45,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:32:45,815 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 1594 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 478.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.67ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 587.99ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:45,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1594 Valid, 1112 Invalid, 760 Unknown, 0 Unchecked, 12.67ms Time], IncrementalHoareTripleChecker [37 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 587.99ms Time] [2021-11-13 18:32:45,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-11-13 18:32:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 261. [2021-11-13 18:32:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.272) internal successors, (318), 260 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 318 transitions. [2021-11-13 18:32:45,852 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 318 transitions. Word has length 66 [2021-11-13 18:32:45,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:45,852 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 318 transitions. [2021-11-13 18:32:45,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 318 transitions. [2021-11-13 18:32:45,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 18:32:45,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:45,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:32:45,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:32:45,855 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:45,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:45,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1424145869, now seen corresponding path program 1 times [2021-11-13 18:32:45,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:45,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890805811] [2021-11-13 18:32:45,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:45,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:46,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:46,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:46,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890805811] [2021-11-13 18:32:46,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890805811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:46,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:46,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:32:46,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992294868] [2021-11-13 18:32:46,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:46,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:32:46,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:46,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:32:46,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:32:46,013 INFO L87 Difference]: Start difference. First operand 261 states and 318 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:46,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:46,926 INFO L93 Difference]: Finished difference Result 509 states and 646 transitions. [2021-11-13 18:32:46,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:32:46,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-11-13 18:32:46,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:46,931 INFO L225 Difference]: With dead ends: 509 [2021-11-13 18:32:46,932 INFO L226 Difference]: Without dead ends: 503 [2021-11-13 18:32:46,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-13 18:32:46,933 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 1796 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 481.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.06ms SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 613.34ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:46,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1796 Valid, 1061 Invalid, 784 Unknown, 0 Unchecked, 13.06ms Time], IncrementalHoareTripleChecker [72 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 613.34ms Time] [2021-11-13 18:32:46,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-11-13 18:32:46,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 261. [2021-11-13 18:32:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.268) internal successors, (317), 260 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 317 transitions. [2021-11-13 18:32:46,969 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 317 transitions. Word has length 66 [2021-11-13 18:32:46,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:46,969 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 317 transitions. [2021-11-13 18:32:46,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:46,970 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 317 transitions. [2021-11-13 18:32:46,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 18:32:46,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:46,971 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] [2021-11-13 18:32:46,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 18:32:46,972 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:46,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:46,972 INFO L85 PathProgramCache]: Analyzing trace with hash -155488627, now seen corresponding path program 1 times [2021-11-13 18:32:46,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:46,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785755548] [2021-11-13 18:32:46,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:46,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:47,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:47,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:47,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785755548] [2021-11-13 18:32:47,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785755548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:47,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:47,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:32:47,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333159768] [2021-11-13 18:32:47,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:47,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:32:47,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:47,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:32:47,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:32:47,119 INFO L87 Difference]: Start difference. First operand 261 states and 317 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:47,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:47,954 INFO L93 Difference]: Finished difference Result 613 states and 790 transitions. [2021-11-13 18:32:47,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:32:47,954 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-11-13 18:32:47,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:47,958 INFO L225 Difference]: With dead ends: 613 [2021-11-13 18:32:47,958 INFO L226 Difference]: Without dead ends: 515 [2021-11-13 18:32:47,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:32:47,960 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 1442 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 462.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.25ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 562.46ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:47,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1442 Valid, 1240 Invalid, 845 Unknown, 0 Unchecked, 11.25ms Time], IncrementalHoareTripleChecker [23 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 562.46ms Time] [2021-11-13 18:32:47,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-11-13 18:32:47,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 261. [2021-11-13 18:32:47,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.264) internal successors, (316), 260 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:47,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 316 transitions. [2021-11-13 18:32:47,996 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 316 transitions. Word has length 66 [2021-11-13 18:32:47,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:47,996 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 316 transitions. [2021-11-13 18:32:47,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:47,997 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 316 transitions. [2021-11-13 18:32:47,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 18:32:47,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:47,998 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] [2021-11-13 18:32:47,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 18:32:47,998 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:47,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:47,999 INFO L85 PathProgramCache]: Analyzing trace with hash -131812051, now seen corresponding path program 1 times [2021-11-13 18:32:47,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:47,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074243257] [2021-11-13 18:32:48,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:48,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:48,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:48,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:48,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074243257] [2021-11-13 18:32:48,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074243257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:48,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:48,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:32:48,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540590964] [2021-11-13 18:32:48,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:48,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:32:48,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:48,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:32:48,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:32:48,130 INFO L87 Difference]: Start difference. First operand 261 states and 316 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:49,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:49,023 INFO L93 Difference]: Finished difference Result 563 states and 724 transitions. [2021-11-13 18:32:49,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:32:49,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-11-13 18:32:49,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:49,028 INFO L225 Difference]: With dead ends: 563 [2021-11-13 18:32:49,028 INFO L226 Difference]: Without dead ends: 503 [2021-11-13 18:32:49,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-13 18:32:49,030 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 1772 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 457.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.20ms SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 570.22ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:49,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1772 Valid, 1072 Invalid, 777 Unknown, 0 Unchecked, 11.20ms Time], IncrementalHoareTripleChecker [72 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 570.22ms Time] [2021-11-13 18:32:49,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-11-13 18:32:49,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 261. [2021-11-13 18:32:49,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.26) internal successors, (315), 260 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:49,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 315 transitions. [2021-11-13 18:32:49,069 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 315 transitions. Word has length 66 [2021-11-13 18:32:49,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:49,069 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 315 transitions. [2021-11-13 18:32:49,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:49,070 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 315 transitions. [2021-11-13 18:32:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 18:32:49,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:49,071 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] [2021-11-13 18:32:49,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 18:32:49,072 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:49,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:49,073 INFO L85 PathProgramCache]: Analyzing trace with hash 2058619373, now seen corresponding path program 1 times [2021-11-13 18:32:49,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:49,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257587285] [2021-11-13 18:32:49,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:49,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:49,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:49,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:49,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257587285] [2021-11-13 18:32:49,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257587285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:49,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:49,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:32:49,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181958033] [2021-11-13 18:32:49,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:49,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:32:49,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:49,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:32:49,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:32:49,229 INFO L87 Difference]: Start difference. First operand 261 states and 315 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:50,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:50,154 INFO L93 Difference]: Finished difference Result 584 states and 754 transitions. [2021-11-13 18:32:50,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:32:50,155 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-11-13 18:32:50,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:50,158 INFO L225 Difference]: With dead ends: 584 [2021-11-13 18:32:50,159 INFO L226 Difference]: Without dead ends: 511 [2021-11-13 18:32:50,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:32:50,160 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 1517 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 509.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.03ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 622.59ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:50,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 1315 Invalid, 857 Unknown, 0 Unchecked, 10.03ms Time], IncrementalHoareTripleChecker [35 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 622.59ms Time] [2021-11-13 18:32:50,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-11-13 18:32:50,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 261. [2021-11-13 18:32:50,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.256) internal successors, (314), 260 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 314 transitions. [2021-11-13 18:32:50,201 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 314 transitions. Word has length 66 [2021-11-13 18:32:50,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:50,201 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 314 transitions. [2021-11-13 18:32:50,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:50,202 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 314 transitions. [2021-11-13 18:32:50,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-13 18:32:50,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:50,203 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] [2021-11-13 18:32:50,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 18:32:50,204 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:50,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:50,204 INFO L85 PathProgramCache]: Analyzing trace with hash 817551922, now seen corresponding path program 1 times [2021-11-13 18:32:50,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:50,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505711604] [2021-11-13 18:32:50,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:50,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:50,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:50,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:50,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505711604] [2021-11-13 18:32:50,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505711604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:50,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:50,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 18:32:50,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744116398] [2021-11-13 18:32:50,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:50,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 18:32:50,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:50,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:32:50,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-13 18:32:50,709 INFO L87 Difference]: Start difference. First operand 261 states and 314 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:52,164 INFO L93 Difference]: Finished difference Result 646 states and 797 transitions. [2021-11-13 18:32:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:32:52,165 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-11-13 18:32:52,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:52,170 INFO L225 Difference]: With dead ends: 646 [2021-11-13 18:32:52,170 INFO L226 Difference]: Without dead ends: 591 [2021-11-13 18:32:52,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-13 18:32:52,172 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 1477 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 614.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.13ms SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 723.70ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:52,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1477 Valid, 2800 Invalid, 901 Unknown, 0 Unchecked, 14.13ms Time], IncrementalHoareTripleChecker [67 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 723.70ms Time] [2021-11-13 18:32:52,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-11-13 18:32:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 260. [2021-11-13 18:32:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 249 states have (on average 1.2530120481927711) internal successors, (312), 259 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:52,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 312 transitions. [2021-11-13 18:32:52,226 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 312 transitions. Word has length 67 [2021-11-13 18:32:52,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:52,227 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 312 transitions. [2021-11-13 18:32:52,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:52,227 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 312 transitions. [2021-11-13 18:32:52,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-13 18:32:52,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:52,229 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] [2021-11-13 18:32:52,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 18:32:52,229 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:52,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:52,230 INFO L85 PathProgramCache]: Analyzing trace with hash 167509874, now seen corresponding path program 1 times [2021-11-13 18:32:52,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:52,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574796410] [2021-11-13 18:32:52,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:52,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:52,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:52,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574796410] [2021-11-13 18:32:52,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574796410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:52,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:52,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 18:32:52,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130146278] [2021-11-13 18:32:52,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:52,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 18:32:52,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:52,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:32:52,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-13 18:32:52,756 INFO L87 Difference]: Start difference. First operand 260 states and 312 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:55,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:55,095 INFO L93 Difference]: Finished difference Result 969 states and 1269 transitions. [2021-11-13 18:32:55,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:32:55,095 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-11-13 18:32:55,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:55,104 INFO L225 Difference]: With dead ends: 969 [2021-11-13 18:32:55,105 INFO L226 Difference]: Without dead ends: 914 [2021-11-13 18:32:55,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-11-13 18:32:55,107 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1746 mSDsluCounter, 4017 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 901.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 4577 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.72ms SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1069.76ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:55,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1746 Valid, 4577 Invalid, 1224 Unknown, 0 Unchecked, 20.72ms Time], IncrementalHoareTripleChecker [69 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 1069.76ms Time] [2021-11-13 18:32:55,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2021-11-13 18:32:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 259. [2021-11-13 18:32:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 248 states have (on average 1.25) internal successors, (310), 258 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 310 transitions. [2021-11-13 18:32:55,169 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 310 transitions. Word has length 67 [2021-11-13 18:32:55,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:55,170 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 310 transitions. [2021-11-13 18:32:55,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:55,171 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 310 transitions. [2021-11-13 18:32:55,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-13 18:32:55,172 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:55,172 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] [2021-11-13 18:32:55,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-13 18:32:55,173 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:55,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:55,173 INFO L85 PathProgramCache]: Analyzing trace with hash 620991698, now seen corresponding path program 1 times [2021-11-13 18:32:55,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:55,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327186245] [2021-11-13 18:32:55,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:55,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:55,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:55,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:55,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327186245] [2021-11-13 18:32:55,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327186245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:55,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:55,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-13 18:32:55,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938406901] [2021-11-13 18:32:55,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:55,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 18:32:55,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:55,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 18:32:55,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:32:55,632 INFO L87 Difference]: Start difference. First operand 259 states and 310 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:56,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:56,822 INFO L93 Difference]: Finished difference Result 736 states and 943 transitions. [2021-11-13 18:32:56,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:32:56,823 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-11-13 18:32:56,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:56,828 INFO L225 Difference]: With dead ends: 736 [2021-11-13 18:32:56,828 INFO L226 Difference]: Without dead ends: 613 [2021-11-13 18:32:56,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2021-11-13 18:32:56,830 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 2327 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 252.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.52ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 299.70ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:56,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2327 Valid, 1315 Invalid, 330 Unknown, 0 Unchecked, 7.52ms Time], IncrementalHoareTripleChecker [49 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 299.70ms Time] [2021-11-13 18:32:56,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-13 18:32:56,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 190. [2021-11-13 18:32:56,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 183 states have (on average 1.2459016393442623) internal successors, (228), 189 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:56,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 228 transitions. [2021-11-13 18:32:56,881 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 228 transitions. Word has length 67 [2021-11-13 18:32:56,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:56,882 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 228 transitions. [2021-11-13 18:32:56,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:56,883 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 228 transitions. [2021-11-13 18:32:56,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-13 18:32:56,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:56,884 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] [2021-11-13 18:32:56,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-13 18:32:56,884 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:56,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:56,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1968382194, now seen corresponding path program 1 times [2021-11-13 18:32:56,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:56,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317137230] [2021-11-13 18:32:56,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:56,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:57,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:57,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:57,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317137230] [2021-11-13 18:32:57,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317137230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:57,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:57,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-13 18:32:57,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832070131] [2021-11-13 18:32:57,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:57,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-13 18:32:57,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:57,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-13 18:32:57,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-11-13 18:32:57,583 INFO L87 Difference]: Start difference. First operand 190 states and 228 transitions. Second operand has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:59,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:59,424 INFO L93 Difference]: Finished difference Result 486 states and 607 transitions. [2021-11-13 18:32:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 18:32:59,424 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-13 18:32:59,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:59,427 INFO L225 Difference]: With dead ends: 486 [2021-11-13 18:32:59,427 INFO L226 Difference]: Without dead ends: 428 [2021-11-13 18:32:59,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2021-11-13 18:32:59,429 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 1643 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 484.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1643 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.20ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 582.06ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:59,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1643 Valid, 1948 Invalid, 758 Unknown, 0 Unchecked, 8.20ms Time], IncrementalHoareTripleChecker [87 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 582.06ms Time] [2021-11-13 18:32:59,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-11-13 18:32:59,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 208. [2021-11-13 18:32:59,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 201 states have (on average 1.2587064676616915) internal successors, (253), 207 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:59,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 253 transitions. [2021-11-13 18:32:59,481 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 253 transitions. Word has length 68 [2021-11-13 18:32:59,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:59,482 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 253 transitions. [2021-11-13 18:32:59,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:59,483 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 253 transitions. [2021-11-13 18:32:59,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-13 18:32:59,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:59,484 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] [2021-11-13 18:32:59,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-13 18:32:59,484 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:32:59,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:59,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1424994738, now seen corresponding path program 1 times [2021-11-13 18:32:59,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:59,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47517637] [2021-11-13 18:32:59,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:59,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:59,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:59,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:59,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47517637] [2021-11-13 18:32:59,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47517637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:59,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:59,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 18:32:59,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337303069] [2021-11-13 18:32:59,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:59,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 18:32:59,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:59,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:32:59,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-13 18:32:59,872 INFO L87 Difference]: Start difference. First operand 208 states and 253 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:00,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:00,935 INFO L93 Difference]: Finished difference Result 473 states and 591 transitions. [2021-11-13 18:33:00,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 18:33:00,936 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-13 18:33:00,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:00,939 INFO L225 Difference]: With dead ends: 473 [2021-11-13 18:33:00,939 INFO L226 Difference]: Without dead ends: 469 [2021-11-13 18:33:00,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-11-13 18:33:00,941 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 1441 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 260.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.17ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 332.46ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:00,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 1502 Invalid, 456 Unknown, 0 Unchecked, 6.17ms Time], IncrementalHoareTripleChecker [52 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 332.46ms Time] [2021-11-13 18:33:00,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2021-11-13 18:33:00,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 204. [2021-11-13 18:33:00,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 198 states have (on average 1.2575757575757576) internal successors, (249), 203 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:00,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 249 transitions. [2021-11-13 18:33:00,999 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 249 transitions. Word has length 68 [2021-11-13 18:33:00,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:00,999 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 249 transitions. [2021-11-13 18:33:01,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:01,000 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 249 transitions. [2021-11-13 18:33:01,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-13 18:33:01,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:01,001 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] [2021-11-13 18:33:01,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-13 18:33:01,002 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:01,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:01,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1956272974, now seen corresponding path program 1 times [2021-11-13 18:33:01,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:01,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771759819] [2021-11-13 18:33:01,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:01,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:01,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:01,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771759819] [2021-11-13 18:33:01,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771759819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:01,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:01,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-13 18:33:01,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057065509] [2021-11-13 18:33:01,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:01,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-13 18:33:01,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:01,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-13 18:33:01,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-11-13 18:33:01,627 INFO L87 Difference]: Start difference. First operand 204 states and 249 transitions. Second operand has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:04,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:04,170 INFO L93 Difference]: Finished difference Result 611 states and 766 transitions. [2021-11-13 18:33:04,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-13 18:33:04,171 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-13 18:33:04,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:04,176 INFO L225 Difference]: With dead ends: 611 [2021-11-13 18:33:04,177 INFO L226 Difference]: Without dead ends: 604 [2021-11-13 18:33:04,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=251, Invalid=1231, Unknown=0, NotChecked=0, Total=1482 [2021-11-13 18:33:04,182 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 1715 mSDsluCounter, 4226 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1306.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.44ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1568.56ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:04,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 4598 Invalid, 2310 Unknown, 0 Unchecked, 19.44ms Time], IncrementalHoareTripleChecker [66 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 1568.56ms Time] [2021-11-13 18:33:04,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-11-13 18:33:04,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 211. [2021-11-13 18:33:04,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 205 states have (on average 1.2585365853658537) internal successors, (258), 210 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:04,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 258 transitions. [2021-11-13 18:33:04,259 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 258 transitions. Word has length 68 [2021-11-13 18:33:04,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:04,260 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 258 transitions. [2021-11-13 18:33:04,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:04,260 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 258 transitions. [2021-11-13 18:33:04,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-13 18:33:04,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:04,262 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] [2021-11-13 18:33:04,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-13 18:33:04,262 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:04,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:04,263 INFO L85 PathProgramCache]: Analyzing trace with hash 859380364, now seen corresponding path program 1 times [2021-11-13 18:33:04,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:04,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552343759] [2021-11-13 18:33:04,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:04,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:04,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:04,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:04,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552343759] [2021-11-13 18:33:04,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552343759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:04,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:04,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 18:33:04,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783590123] [2021-11-13 18:33:04,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:04,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 18:33:04,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:04,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 18:33:04,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:33:04,707 INFO L87 Difference]: Start difference. First operand 211 states and 258 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:05,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:05,639 INFO L93 Difference]: Finished difference Result 489 states and 625 transitions. [2021-11-13 18:33:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 18:33:05,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-11-13 18:33:05,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:05,643 INFO L225 Difference]: With dead ends: 489 [2021-11-13 18:33:05,643 INFO L226 Difference]: Without dead ends: 451 [2021-11-13 18:33:05,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-13 18:33:05,645 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 1454 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 240.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.50ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 285.55ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:05,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1454 Valid, 2133 Invalid, 375 Unknown, 0 Unchecked, 7.50ms Time], IncrementalHoareTripleChecker [22 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 285.55ms Time] [2021-11-13 18:33:05,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2021-11-13 18:33:05,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 173. [2021-11-13 18:33:05,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 169 states have (on average 1.2603550295857988) internal successors, (213), 172 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:05,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 213 transitions. [2021-11-13 18:33:05,723 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 213 transitions. Word has length 69 [2021-11-13 18:33:05,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:05,724 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 213 transitions. [2021-11-13 18:33:05,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:05,724 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 213 transitions. [2021-11-13 18:33:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-13 18:33:05,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:05,726 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] [2021-11-13 18:33:05,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-13 18:33:05,726 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:05,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:05,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1452889883, now seen corresponding path program 1 times [2021-11-13 18:33:05,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:05,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374560020] [2021-11-13 18:33:05,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:05,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:06,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:06,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:06,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374560020] [2021-11-13 18:33:06,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374560020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:06,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:06,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 18:33:06,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276341889] [2021-11-13 18:33:06,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:06,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 18:33:06,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:06,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 18:33:06,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:33:06,159 INFO L87 Difference]: Start difference. First operand 173 states and 213 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:07,072 INFO L93 Difference]: Finished difference Result 466 states and 618 transitions. [2021-11-13 18:33:07,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 18:33:07,075 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-11-13 18:33:07,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:07,078 INFO L225 Difference]: With dead ends: 466 [2021-11-13 18:33:07,078 INFO L226 Difference]: Without dead ends: 391 [2021-11-13 18:33:07,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2021-11-13 18:33:07,080 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 801 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 232.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.05ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 277.38ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:07,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [801 Valid, 2012 Invalid, 392 Unknown, 0 Unchecked, 6.05ms Time], IncrementalHoareTripleChecker [14 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 277.38ms Time] [2021-11-13 18:33:07,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2021-11-13 18:33:07,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 138. [2021-11-13 18:33:07,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 136 states have (on average 1.2426470588235294) internal successors, (169), 137 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 169 transitions. [2021-11-13 18:33:07,132 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 169 transitions. Word has length 69 [2021-11-13 18:33:07,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:07,132 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 169 transitions. [2021-11-13 18:33:07,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 169 transitions. [2021-11-13 18:33:07,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-13 18:33:07,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:07,134 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] [2021-11-13 18:33:07,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-13 18:33:07,134 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:07,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:07,135 INFO L85 PathProgramCache]: Analyzing trace with hash -957086542, now seen corresponding path program 1 times [2021-11-13 18:33:07,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:07,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100731268] [2021-11-13 18:33:07,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:07,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:07,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:07,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:07,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100731268] [2021-11-13 18:33:07,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100731268] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:07,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:07,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:33:07,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981840248] [2021-11-13 18:33:07,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:07,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:33:07,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:07,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:33:07,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:33:07,285 INFO L87 Difference]: Start difference. First operand 138 states and 169 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:07,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:07,788 INFO L93 Difference]: Finished difference Result 296 states and 383 transitions. [2021-11-13 18:33:07,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:33:07,788 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-13 18:33:07,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:07,790 INFO L225 Difference]: With dead ends: 296 [2021-11-13 18:33:07,791 INFO L226 Difference]: Without dead ends: 222 [2021-11-13 18:33:07,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-11-13 18:33:07,792 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 764 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 204.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.05ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 257.21ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:07,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [764 Valid, 562 Invalid, 401 Unknown, 0 Unchecked, 4.05ms Time], IncrementalHoareTripleChecker [18 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 257.21ms Time] [2021-11-13 18:33:07,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-13 18:33:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 138. [2021-11-13 18:33:07,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 136 states have (on average 1.2352941176470589) internal successors, (168), 137 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 168 transitions. [2021-11-13 18:33:07,848 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 168 transitions. Word has length 70 [2021-11-13 18:33:07,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:07,848 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 168 transitions. [2021-11-13 18:33:07,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 168 transitions. [2021-11-13 18:33:07,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 18:33:07,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:07,849 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] [2021-11-13 18:33:07,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-13 18:33:07,850 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:07,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:07,851 INFO L85 PathProgramCache]: Analyzing trace with hash -918116841, now seen corresponding path program 1 times [2021-11-13 18:33:07,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:07,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724456937] [2021-11-13 18:33:07,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:07,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:08,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:08,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724456937] [2021-11-13 18:33:08,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724456937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:08,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:08,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-11-13 18:33:08,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731340650] [2021-11-13 18:33:08,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:08,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-13 18:33:08,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:08,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-13 18:33:08,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-11-13 18:33:08,727 INFO L87 Difference]: Start difference. First operand 138 states and 168 transitions. Second operand has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:12,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:12,110 INFO L93 Difference]: Finished difference Result 709 states and 951 transitions. [2021-11-13 18:33:12,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-13 18:33:12,110 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-13 18:33:12,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:12,114 INFO L225 Difference]: With dead ends: 709 [2021-11-13 18:33:12,114 INFO L226 Difference]: Without dead ends: 703 [2021-11-13 18:33:12,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=265, Invalid=1375, Unknown=0, NotChecked=0, Total=1640 [2021-11-13 18:33:12,116 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 1721 mSDsluCounter, 5824 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1460.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 6285 SdHoareTripleChecker+Invalid, 2870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.71ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1764.26ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:12,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1721 Valid, 6285 Invalid, 2870 Unknown, 0 Unchecked, 21.71ms Time], IncrementalHoareTripleChecker [52 Valid, 2818 Invalid, 0 Unknown, 0 Unchecked, 1764.26ms Time] [2021-11-13 18:33:12,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2021-11-13 18:33:12,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 157. [2021-11-13 18:33:12,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 155 states have (on average 1.232258064516129) internal successors, (191), 156 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:12,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 191 transitions. [2021-11-13 18:33:12,195 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 191 transitions. Word has length 72 [2021-11-13 18:33:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:12,196 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 191 transitions. [2021-11-13 18:33:12,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 191 transitions. [2021-11-13 18:33:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-13 18:33:12,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:12,197 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] [2021-11-13 18:33:12,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-13 18:33:12,198 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:12,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:12,198 INFO L85 PathProgramCache]: Analyzing trace with hash 370177890, now seen corresponding path program 1 times [2021-11-13 18:33:12,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:12,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966752583] [2021-11-13 18:33:12,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:12,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:12,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:12,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966752583] [2021-11-13 18:33:12,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966752583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:12,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:12,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 18:33:12,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494847784] [2021-11-13 18:33:12,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:12,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 18:33:12,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:12,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:33:12,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-13 18:33:12,589 INFO L87 Difference]: Start difference. First operand 157 states and 191 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:13,908 INFO L93 Difference]: Finished difference Result 580 states and 792 transitions. [2021-11-13 18:33:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:33:13,909 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-13 18:33:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:13,912 INFO L225 Difference]: With dead ends: 580 [2021-11-13 18:33:13,912 INFO L226 Difference]: Without dead ends: 574 [2021-11-13 18:33:13,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-13 18:33:13,914 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 1021 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 341.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.55ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 405.17ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:13,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1021 Valid, 2793 Invalid, 632 Unknown, 0 Unchecked, 7.55ms Time], IncrementalHoareTripleChecker [22 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 405.17ms Time] [2021-11-13 18:33:13,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-11-13 18:33:13,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 132. [2021-11-13 18:33:13,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.2366412213740459) internal successors, (162), 131 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:13,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 162 transitions. [2021-11-13 18:33:13,971 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 162 transitions. Word has length 73 [2021-11-13 18:33:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:13,971 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 162 transitions. [2021-11-13 18:33:13,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:13,972 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 162 transitions. [2021-11-13 18:33:13,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-13 18:33:13,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:13,973 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] [2021-11-13 18:33:13,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-13 18:33:13,974 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:13,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:13,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1364481581, now seen corresponding path program 1 times [2021-11-13 18:33:13,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:13,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337597559] [2021-11-13 18:33:13,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:13,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:14,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:14,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:14,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337597559] [2021-11-13 18:33:14,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337597559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:14,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:14,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:33:14,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498701057] [2021-11-13 18:33:14,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:14,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:33:14,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:14,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:33:14,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:33:14,057 INFO L87 Difference]: Start difference. First operand 132 states and 162 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:14,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:14,411 INFO L93 Difference]: Finished difference Result 564 states and 794 transitions. [2021-11-13 18:33:14,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:33:14,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2021-11-13 18:33:14,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:14,414 INFO L225 Difference]: With dead ends: 564 [2021-11-13 18:33:14,414 INFO L226 Difference]: Without dead ends: 510 [2021-11-13 18:33:14,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:33:14,418 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 896 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.02ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.58ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:14,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 944 Invalid, 91 Unknown, 0 Unchecked, 3.02ms Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 71.58ms Time] [2021-11-13 18:33:14,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2021-11-13 18:33:14,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 184. [2021-11-13 18:33:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.3005464480874316) internal successors, (238), 183 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:14,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 238 transitions. [2021-11-13 18:33:14,526 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 238 transitions. Word has length 96 [2021-11-13 18:33:14,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:14,527 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 238 transitions. [2021-11-13 18:33:14,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:14,527 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 238 transitions. [2021-11-13 18:33:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 18:33:14,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:14,529 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] [2021-11-13 18:33:14,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-13 18:33:14,529 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:14,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1426852022, now seen corresponding path program 1 times [2021-11-13 18:33:14,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:14,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358066882] [2021-11-13 18:33:14,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:14,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:14,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:14,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:14,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358066882] [2021-11-13 18:33:14,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358066882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:14,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:14,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:33:14,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880042288] [2021-11-13 18:33:14,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:14,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:33:14,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:14,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:33:14,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:33:14,615 INFO L87 Difference]: Start difference. First operand 184 states and 238 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:14,977 INFO L93 Difference]: Finished difference Result 662 states and 935 transitions. [2021-11-13 18:33:14,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:33:14,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2021-11-13 18:33:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:14,981 INFO L225 Difference]: With dead ends: 662 [2021-11-13 18:33:14,982 INFO L226 Difference]: Without dead ends: 556 [2021-11-13 18:33:14,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:33:14,983 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 649 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.46ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.79ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:14,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 664 Invalid, 63 Unknown, 0 Unchecked, 2.46ms Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 51.79ms Time] [2021-11-13 18:33:14,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2021-11-13 18:33:15,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 288. [2021-11-13 18:33:15,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.362369337979094) internal successors, (391), 287 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:15,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 391 transitions. [2021-11-13 18:33:15,165 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 391 transitions. Word has length 98 [2021-11-13 18:33:15,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:15,165 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 391 transitions. [2021-11-13 18:33:15,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:15,166 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 391 transitions. [2021-11-13 18:33:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 18:33:15,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:15,167 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] [2021-11-13 18:33:15,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-13 18:33:15,167 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:15,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:15,168 INFO L85 PathProgramCache]: Analyzing trace with hash 645902315, now seen corresponding path program 1 times [2021-11-13 18:33:15,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:15,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684416988] [2021-11-13 18:33:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:15,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:15,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:15,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684416988] [2021-11-13 18:33:15,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684416988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:15,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:15,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:33:15,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621211849] [2021-11-13 18:33:15,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:15,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:33:15,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:15,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:33:15,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:33:15,324 INFO L87 Difference]: Start difference. First operand 288 states and 391 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:15,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:15,577 INFO L93 Difference]: Finished difference Result 500 states and 700 transitions. [2021-11-13 18:33:15,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:33:15,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2021-11-13 18:33:15,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:15,579 INFO L225 Difference]: With dead ends: 500 [2021-11-13 18:33:15,579 INFO L226 Difference]: Without dead ends: 290 [2021-11-13 18:33:15,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:33:15,581 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 491 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.60ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.46ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:15,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [491 Valid, 377 Invalid, 52 Unknown, 0 Unchecked, 1.60ms Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 43.46ms Time] [2021-11-13 18:33:15,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-11-13 18:33:15,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 288. [2021-11-13 18:33:15,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.3554006968641115) internal successors, (389), 287 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) [2021-11-13 18:33:15,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 389 transitions. [2021-11-13 18:33:15,697 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 389 transitions. Word has length 98 [2021-11-13 18:33:15,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:15,698 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 389 transitions. [2021-11-13 18:33:15,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:15,698 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 389 transitions. [2021-11-13 18:33:15,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 18:33:15,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:15,698 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] [2021-11-13 18:33:15,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-13 18:33:15,699 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:15,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:15,699 INFO L85 PathProgramCache]: Analyzing trace with hash 579408803, now seen corresponding path program 1 times [2021-11-13 18:33:15,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:15,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77016139] [2021-11-13 18:33:15,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:15,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:15,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:15,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77016139] [2021-11-13 18:33:15,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77016139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:15,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:15,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:33:15,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516902466] [2021-11-13 18:33:15,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:15,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:15,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:15,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:15,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:15,755 INFO L87 Difference]: Start difference. First operand 288 states and 389 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:16,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:16,085 INFO L93 Difference]: Finished difference Result 682 states and 957 transitions. [2021-11-13 18:33:16,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:16,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2021-11-13 18:33:16,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:16,088 INFO L225 Difference]: With dead ends: 682 [2021-11-13 18:33:16,088 INFO L226 Difference]: Without dead ends: 472 [2021-11-13 18:33:16,089 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 [2021-11-13 18:33:16,089 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 66 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.18ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.17ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:16,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 371 Invalid, 17 Unknown, 0 Unchecked, 1.18ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 22.17ms Time] [2021-11-13 18:33:16,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-11-13 18:33:16,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 470. [2021-11-13 18:33:16,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.3688699360341152) internal successors, (642), 469 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:16,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 642 transitions. [2021-11-13 18:33:16,448 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 642 transitions. Word has length 98 [2021-11-13 18:33:16,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:16,448 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 642 transitions. [2021-11-13 18:33:16,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 642 transitions. [2021-11-13 18:33:16,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 18:33:16,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:16,450 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] [2021-11-13 18:33:16,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-13 18:33:16,451 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:16,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:16,451 INFO L85 PathProgramCache]: Analyzing trace with hash 628880202, now seen corresponding path program 1 times [2021-11-13 18:33:16,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:16,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854358651] [2021-11-13 18:33:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:16,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:16,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:16,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:16,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854358651] [2021-11-13 18:33:16,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854358651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:16,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:16,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:33:16,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638384020] [2021-11-13 18:33:16,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:16,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:33:16,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:16,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:33:16,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:33:16,538 INFO L87 Difference]: Start difference. First operand 470 states and 642 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:17,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:17,341 INFO L93 Difference]: Finished difference Result 1358 states and 1906 transitions. [2021-11-13 18:33:17,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:33:17,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2021-11-13 18:33:17,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:17,347 INFO L225 Difference]: With dead ends: 1358 [2021-11-13 18:33:17,347 INFO L226 Difference]: Without dead ends: 1161 [2021-11-13 18:33:17,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:33:17,348 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 614 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.26ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.27ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:17,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 691 Invalid, 86 Unknown, 0 Unchecked, 3.26ms Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 66.27ms Time] [2021-11-13 18:33:17,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2021-11-13 18:33:17,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 763. [2021-11-13 18:33:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 762 states have (on average 1.389763779527559) internal successors, (1059), 762 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) [2021-11-13 18:33:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1059 transitions. [2021-11-13 18:33:17,814 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1059 transitions. Word has length 98 [2021-11-13 18:33:17,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:17,815 INFO L470 AbstractCegarLoop]: Abstraction has 763 states and 1059 transitions. [2021-11-13 18:33:17,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:17,815 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1059 transitions. [2021-11-13 18:33:17,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 18:33:17,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:17,817 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] [2021-11-13 18:33:17,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-13 18:33:17,818 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:17,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1790937782, now seen corresponding path program 1 times [2021-11-13 18:33:17,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:17,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689672158] [2021-11-13 18:33:17,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:17,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:17,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:17,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689672158] [2021-11-13 18:33:17,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689672158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:17,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:17,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:33:17,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307533737] [2021-11-13 18:33:17,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:17,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:33:17,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:17,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:33:17,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:33:17,909 INFO L87 Difference]: Start difference. First operand 763 states and 1059 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:18,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:18,996 INFO L93 Difference]: Finished difference Result 1553 states and 2184 transitions. [2021-11-13 18:33:18,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:33:18,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2021-11-13 18:33:18,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:19,004 INFO L225 Difference]: With dead ends: 1553 [2021-11-13 18:33:19,004 INFO L226 Difference]: Without dead ends: 1356 [2021-11-13 18:33:19,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:33:19,007 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 584 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.72ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.82ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:19,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [584 Valid, 750 Invalid, 93 Unknown, 0 Unchecked, 3.72ms Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 78.82ms Time] [2021-11-13 18:33:19,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2021-11-13 18:33:19,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 958. [2021-11-13 18:33:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 1.3970741901776385) internal successors, (1337), 957 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:19,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1337 transitions. [2021-11-13 18:33:19,639 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1337 transitions. Word has length 98 [2021-11-13 18:33:19,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:19,640 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 1337 transitions. [2021-11-13 18:33:19,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:19,640 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1337 transitions. [2021-11-13 18:33:19,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 18:33:19,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:19,642 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] [2021-11-13 18:33:19,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-13 18:33:19,642 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:19,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:19,643 INFO L85 PathProgramCache]: Analyzing trace with hash -686393014, now seen corresponding path program 1 times [2021-11-13 18:33:19,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:19,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479927013] [2021-11-13 18:33:19,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:19,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:19,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:19,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479927013] [2021-11-13 18:33:19,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479927013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:19,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:19,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:33:19,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792251247] [2021-11-13 18:33:19,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:19,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:33:19,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:19,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:33:19,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:33:19,728 INFO L87 Difference]: Start difference. First operand 958 states and 1337 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:20,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:20,683 INFO L93 Difference]: Finished difference Result 1748 states and 2462 transitions. [2021-11-13 18:33:20,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:33:20,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2021-11-13 18:33:20,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:20,691 INFO L225 Difference]: With dead ends: 1748 [2021-11-13 18:33:20,691 INFO L226 Difference]: Without dead ends: 1551 [2021-11-13 18:33:20,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:33:20,692 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 644 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.07ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.11ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:20,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 754 Invalid, 77 Unknown, 0 Unchecked, 3.07ms Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 62.11ms Time] [2021-11-13 18:33:20,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2021-11-13 18:33:21,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1153. [2021-11-13 18:33:21,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.4019097222222223) internal successors, (1615), 1152 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1615 transitions. [2021-11-13 18:33:21,347 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1615 transitions. Word has length 98 [2021-11-13 18:33:21,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:21,348 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1615 transitions. [2021-11-13 18:33:21,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1615 transitions. [2021-11-13 18:33:21,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-13 18:33:21,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:21,350 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] [2021-11-13 18:33:21,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-13 18:33:21,350 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:21,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1897778033, now seen corresponding path program 1 times [2021-11-13 18:33:21,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:21,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439503295] [2021-11-13 18:33:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:21,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:21,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:21,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439503295] [2021-11-13 18:33:21,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439503295] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:21,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:21,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:33:21,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092504647] [2021-11-13 18:33:21,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:21,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:21,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:21,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:21,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:21,406 INFO L87 Difference]: Start difference. First operand 1153 states and 1615 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:22,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:22,457 INFO L93 Difference]: Finished difference Result 2885 states and 4062 transitions. [2021-11-13 18:33:22,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:22,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-11-13 18:33:22,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:22,466 INFO L225 Difference]: With dead ends: 2885 [2021-11-13 18:33:22,466 INFO L226 Difference]: Without dead ends: 1810 [2021-11-13 18:33:22,468 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 [2021-11-13 18:33:22,469 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 77 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.03ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.40ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:22,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 343 Invalid, 11 Unknown, 0 Unchecked, 1.03ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 14.40ms Time] [2021-11-13 18:33:22,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2021-11-13 18:33:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1720. [2021-11-13 18:33:23,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.3944153577661431) internal successors, (2397), 1719 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:23,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2397 transitions. [2021-11-13 18:33:23,525 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2397 transitions. Word has length 99 [2021-11-13 18:33:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:23,525 INFO L470 AbstractCegarLoop]: Abstraction has 1720 states and 2397 transitions. [2021-11-13 18:33:23,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2397 transitions. [2021-11-13 18:33:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-13 18:33:23,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:23,527 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] [2021-11-13 18:33:23,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-13 18:33:23,528 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:23,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:23,529 INFO L85 PathProgramCache]: Analyzing trace with hash 642959826, now seen corresponding path program 1 times [2021-11-13 18:33:23,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:23,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423795903] [2021-11-13 18:33:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:23,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:23,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:23,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423795903] [2021-11-13 18:33:23,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423795903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:23,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:23,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:33:23,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221812571] [2021-11-13 18:33:23,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:23,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:23,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:23,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:23,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:23,590 INFO L87 Difference]: Start difference. First operand 1720 states and 2397 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:25,291 INFO L93 Difference]: Finished difference Result 4872 states and 6794 transitions. [2021-11-13 18:33:25,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:25,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2021-11-13 18:33:25,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:25,319 INFO L225 Difference]: With dead ends: 4872 [2021-11-13 18:33:25,319 INFO L226 Difference]: Without dead ends: 3230 [2021-11-13 18:33:25,322 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 [2021-11-13 18:33:25,323 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 70 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.17ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:25,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 344 Invalid, 11 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 15.17ms Time] [2021-11-13 18:33:25,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2021-11-13 18:33:27,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3096. [2021-11-13 18:33:27,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3095 states have (on average 1.3831987075928918) internal successors, (4281), 3095 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:27,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4281 transitions. [2021-11-13 18:33:27,022 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4281 transitions. Word has length 100 [2021-11-13 18:33:27,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:27,022 INFO L470 AbstractCegarLoop]: Abstraction has 3096 states and 4281 transitions. [2021-11-13 18:33:27,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:27,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4281 transitions. [2021-11-13 18:33:27,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-13 18:33:27,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:27,023 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] [2021-11-13 18:33:27,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-13 18:33:27,024 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:27,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:27,024 INFO L85 PathProgramCache]: Analyzing trace with hash -563977445, now seen corresponding path program 1 times [2021-11-13 18:33:27,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:27,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653528582] [2021-11-13 18:33:27,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:27,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:27,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:27,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653528582] [2021-11-13 18:33:27,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653528582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:27,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:27,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:33:27,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791210844] [2021-11-13 18:33:27,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:27,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:27,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:27,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:27,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:27,084 INFO L87 Difference]: Start difference. First operand 3096 states and 4281 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 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) [2021-11-13 18:33:30,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:30,296 INFO L93 Difference]: Finished difference Result 8868 states and 12215 transitions. [2021-11-13 18:33:30,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:30,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 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 [2021-11-13 18:33:30,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:30,325 INFO L225 Difference]: With dead ends: 8868 [2021-11-13 18:33:30,325 INFO L226 Difference]: Without dead ends: 5850 [2021-11-13 18:33:30,330 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 [2021-11-13 18:33:30,331 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 63 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.09ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.25ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:30,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 344 Invalid, 11 Unknown, 0 Unchecked, 1.09ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 15.25ms Time] [2021-11-13 18:33:30,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2021-11-13 18:33:33,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5584. [2021-11-13 18:33:33,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5584 states, 5583 states have (on average 1.3648576034390112) internal successors, (7620), 5583 states have internal predecessors, (7620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5584 states to 5584 states and 7620 transitions. [2021-11-13 18:33:33,535 INFO L78 Accepts]: Start accepts. Automaton has 5584 states and 7620 transitions. Word has length 101 [2021-11-13 18:33:33,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:33,535 INFO L470 AbstractCegarLoop]: Abstraction has 5584 states and 7620 transitions. [2021-11-13 18:33:33,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 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) [2021-11-13 18:33:33,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5584 states and 7620 transitions. [2021-11-13 18:33:33,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-13 18:33:33,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:33,537 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] [2021-11-13 18:33:33,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-13 18:33:33,537 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash 573353758, now seen corresponding path program 1 times [2021-11-13 18:33:33,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:33,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198909787] [2021-11-13 18:33:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:33,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:33,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:33,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198909787] [2021-11-13 18:33:33,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198909787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:33,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:33,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:33:33,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871804011] [2021-11-13 18:33:33,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:33,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:33,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:33,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:33,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:33,602 INFO L87 Difference]: Start difference. First operand 5584 states and 7620 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:39,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:39,752 INFO L93 Difference]: Finished difference Result 16068 states and 21770 transitions. [2021-11-13 18:33:39,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:39,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-11-13 18:33:39,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:39,772 INFO L225 Difference]: With dead ends: 16068 [2021-11-13 18:33:39,772 INFO L226 Difference]: Without dead ends: 10562 [2021-11-13 18:33:39,780 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 [2021-11-13 18:33:39,781 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 53 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.07ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.55ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:39,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 343 Invalid, 12 Unknown, 0 Unchecked, 1.07ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 54.55ms Time] [2021-11-13 18:33:39,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2021-11-13 18:33:45,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 10032. [2021-11-13 18:33:45,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10032 states, 10031 states have (on average 1.3398464759246336) internal successors, (13440), 10031 states have internal predecessors, (13440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:45,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10032 states to 10032 states and 13440 transitions. [2021-11-13 18:33:45,359 INFO L78 Accepts]: Start accepts. Automaton has 10032 states and 13440 transitions. Word has length 102 [2021-11-13 18:33:45,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:45,359 INFO L470 AbstractCegarLoop]: Abstraction has 10032 states and 13440 transitions. [2021-11-13 18:33:45,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:45,360 INFO L276 IsEmpty]: Start isEmpty. Operand 10032 states and 13440 transitions. [2021-11-13 18:33:45,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-13 18:33:45,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:45,360 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] [2021-11-13 18:33:45,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-13 18:33:45,360 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:33:45,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:45,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1488377255, now seen corresponding path program 1 times [2021-11-13 18:33:45,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:45,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090475329] [2021-11-13 18:33:45,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:45,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:45,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:45,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:45,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090475329] [2021-11-13 18:33:45,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090475329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:45,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:45,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:33:45,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722234932] [2021-11-13 18:33:45,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:45,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:33:45,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:45,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:33:45,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:33:45,438 INFO L87 Difference]: Start difference. First operand 10032 states and 13440 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 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) [2021-11-13 18:33:54,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:54,357 INFO L93 Difference]: Finished difference Result 15538 states and 20747 transitions. [2021-11-13 18:33:54,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:33:54,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 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 [2021-11-13 18:33:54,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:54,394 INFO L225 Difference]: With dead ends: 15538 [2021-11-13 18:33:54,394 INFO L226 Difference]: Without dead ends: 15536 [2021-11-13 18:33:54,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:33:54,399 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 257 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.71ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.11ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:54,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 815 Invalid, 49 Unknown, 0 Unchecked, 1.71ms Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 34.11ms Time] [2021-11-13 18:33:54,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15536 states. [2021-11-13 18:34:00,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15536 to 10272. [2021-11-13 18:34:00,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10272 states, 10271 states have (on average 1.3225586603057151) internal successors, (13584), 10271 states have internal predecessors, (13584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:34:00,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10272 states to 10272 states and 13584 transitions. [2021-11-13 18:34:00,539 INFO L78 Accepts]: Start accepts. Automaton has 10272 states and 13584 transitions. Word has length 103 [2021-11-13 18:34:00,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:34:00,539 INFO L470 AbstractCegarLoop]: Abstraction has 10272 states and 13584 transitions. [2021-11-13 18:34:00,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 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) [2021-11-13 18:34:00,540 INFO L276 IsEmpty]: Start isEmpty. Operand 10272 states and 13584 transitions. [2021-11-13 18:34:00,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-13 18:34:00,541 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:34:00,541 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] [2021-11-13 18:34:00,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-13 18:34:00,541 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:34:00,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:34:00,542 INFO L85 PathProgramCache]: Analyzing trace with hash -108390554, now seen corresponding path program 1 times [2021-11-13 18:34:00,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:34:00,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846319006] [2021-11-13 18:34:00,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:34:00,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:34:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:34:00,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:34:00,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846319006] [2021-11-13 18:34:00,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846319006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:34:00,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:34:00,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:34:00,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310664181] [2021-11-13 18:34:00,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:34:00,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:34:00,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:34:00,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:34:00,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:34:00,594 INFO L87 Difference]: Start difference. First operand 10272 states and 13584 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 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) [2021-11-13 18:34:06,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:34:06,345 INFO L93 Difference]: Finished difference Result 20788 states and 27514 transitions. [2021-11-13 18:34:06,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:34:06,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 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 [2021-11-13 18:34:06,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:34:06,367 INFO L225 Difference]: With dead ends: 20788 [2021-11-13 18:34:06,367 INFO L226 Difference]: Without dead ends: 10594 [2021-11-13 18:34:06,378 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 [2021-11-13 18:34:06,378 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 85 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.65ms IncrementalHoareTripleChecker+Time [2021-11-13 18:34:06,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 287 Invalid, 16 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 16.65ms Time] [2021-11-13 18:34:06,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2021-11-13 18:34:12,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 10592. [2021-11-13 18:34:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10592 states, 10591 states have (on average 1.3056368614861675) internal successors, (13828), 10591 states have internal predecessors, (13828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:34:12,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10592 states to 10592 states and 13828 transitions. [2021-11-13 18:34:12,160 INFO L78 Accepts]: Start accepts. Automaton has 10592 states and 13828 transitions. Word has length 103 [2021-11-13 18:34:12,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:34:12,160 INFO L470 AbstractCegarLoop]: Abstraction has 10592 states and 13828 transitions. [2021-11-13 18:34:12,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 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) [2021-11-13 18:34:12,161 INFO L276 IsEmpty]: Start isEmpty. Operand 10592 states and 13828 transitions. [2021-11-13 18:34:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-13 18:34:12,164 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:34:12,164 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-13 18:34:12,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-13 18:34:12,165 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-13 18:34:12,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:34:12,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1221771837, now seen corresponding path program 1 times [2021-11-13 18:34:12,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:34:12,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811197203] [2021-11-13 18:34:12,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:34:12,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:34:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:34:12,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:34:12,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811197203] [2021-11-13 18:34:12,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811197203] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:34:12,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234605383] [2021-11-13 18:34:12,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:34:12,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:34:12,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:34:12,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:34:12,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7646c1e4-5dfa-43bb-bb40-d92c2b8ebee9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:34:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:12,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 18:34:12,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:34:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:34:13,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:34:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:34:16,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234605383] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:34:16,237 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:34:16,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2021-11-13 18:34:16,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767797460] [2021-11-13 18:34:16,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:34:16,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-13 18:34:16,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:34:16,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-13 18:34:16,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-11-13 18:34:16,241 INFO L87 Difference]: Start difference. First operand 10592 states and 13828 transitions. Second operand has 27 states, 27 states have (on average 11.481481481481481) internal successors, (310), 26 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:37:25,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:37:25,758 INFO L93 Difference]: Finished difference Result 245137 states and 313468 transitions. [2021-11-13 18:37:25,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 348 states. [2021-11-13 18:37:25,758 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 11.481481481481481) internal successors, (310), 26 states have internal predecessors, (310), 0 states have call successors, (0), 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 130 [2021-11-13 18:37:25,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:37:26,498 INFO L225 Difference]: With dead ends: 245137 [2021-11-13 18:37:26,498 INFO L226 Difference]: Without dead ends: 234623 [2021-11-13 18:37:26,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 369 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60027 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=14715, Invalid=122555, Unknown=0, NotChecked=0, Total=137270 [2021-11-13 18:37:26,604 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 11830 mSDsluCounter, 4264 mSDsCounter, 0 mSdLazyCounter, 4226 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2923.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11830 SdHoareTripleChecker+Valid, 4604 SdHoareTripleChecker+Invalid, 4654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.64ms SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 4226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3457.58ms IncrementalHoareTripleChecker+Time [2021-11-13 18:37:26,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11830 Valid, 4604 Invalid, 4654 Unknown, 0 Unchecked, 49.64ms Time], IncrementalHoareTripleChecker [428 Valid, 4226 Invalid, 0 Unknown, 0 Unchecked, 3457.58ms Time] [2021-11-13 18:37:26,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234623 states.