./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8 --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 be1fcaa299b4a26d5c3c0d4f857b13329cbb7ec0505911e54bd9d27d2647b4d4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:21:52,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:21:52,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:21:52,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:21:52,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:21:52,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:21:52,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:21:52,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:21:52,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:21:52,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:21:52,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:21:52,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:21:52,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:21:52,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:21:52,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:21:52,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:21:52,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:21:52,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:21:52,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:21:52,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:21:52,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:21:52,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:21:52,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:21:52,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:21:52,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:21:52,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:21:52,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:21:52,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:21:52,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:21:52,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:21:52,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:21:52,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:21:52,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:21:52,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:21:52,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:21:52,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:21:52,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:21:52,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:21:52,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:21:52,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:21:52,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:21:52,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:21:52,959 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:21:52,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:21:52,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:21:52,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:21:52,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:21:52,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:21:52,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:21:52,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:21:52,962 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:21:52,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:21:52,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:21:52,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:21:52,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:21:52,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:21:52,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:21:52,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:21:52,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:21:52,964 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:21:52,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:21:52,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:21:52,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:21:52,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:21:52,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:21:52,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:21:52,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:21:52,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:21:52,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:21:52,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:21:52,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:21:52,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:21:52,967 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:21:52,967 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:21:52,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:21:52,967 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_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be1fcaa299b4a26d5c3c0d4f857b13329cbb7ec0505911e54bd9d27d2647b4d4 [2022-11-16 12:21:53,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:21:53,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:21:53,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:21:53,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:21:53,368 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:21:53,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-16 12:21:53,459 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/data/95d837e9b/96823ef94cf04be882ebe893df5f3f9f/FLAG1193d6da0 [2022-11-16 12:21:54,281 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:21:54,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-16 12:21:54,312 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/data/95d837e9b/96823ef94cf04be882ebe893df5f3f9f/FLAG1193d6da0 [2022-11-16 12:21:54,396 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/data/95d837e9b/96823ef94cf04be882ebe893df5f3f9f [2022-11-16 12:21:54,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:21:54,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:21:54,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:21:54,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:21:54,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:21:54,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:54" (1/1) ... [2022-11-16 12:21:54,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7bca0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:54, skipping insertion in model container [2022-11-16 12:21:54,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:54" (1/1) ... [2022-11-16 12:21:54,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:21:54,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:21:55,015 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7172,7185] [2022-11-16 12:21:55,070 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[10914,10927] [2022-11-16 12:21:55,156 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[17944,17957] [2022-11-16 12:21:55,212 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24017,24030] [2022-11-16 12:21:55,360 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42645,42658] [2022-11-16 12:21:55,488 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[64626,64639] [2022-11-16 12:21:55,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:21:55,702 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:21:55,746 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7172,7185] [2022-11-16 12:21:55,764 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[10914,10927] [2022-11-16 12:21:55,796 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[17944,17957] [2022-11-16 12:21:55,816 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24017,24030] [2022-11-16 12:21:55,877 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42645,42658] [2022-11-16 12:21:55,930 WARN L229 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_5a0a9358-632c-4447-8a33-ba7e3839399a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[64626,64639] [2022-11-16 12:21:56,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:21:56,103 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:21:56,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56 WrapperNode [2022-11-16 12:21:56,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:21:56,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:21:56,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:21:56,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:21:56,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,292 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5288 [2022-11-16 12:21:56,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:21:56,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:21:56,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:21:56,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:21:56,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,433 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:21:56,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:21:56,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:21:56,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:21:56,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (1/1) ... [2022-11-16 12:21:56,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:21:56,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:21:56,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:21:56,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0a9358-632c-4447-8a33-ba7e3839399a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:21:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:21:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:21:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:21:56,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:21:56,954 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:21:56,956 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:22:00,005 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:22:00,022 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:22:00,023 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:22:00,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:00 BoogieIcfgContainer [2022-11-16 12:22:00,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:22:00,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:22:00,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:22:00,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:22:00,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:21:54" (1/3) ... [2022-11-16 12:22:00,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7683f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:22:00, skipping insertion in model container [2022-11-16 12:22:00,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:56" (2/3) ... [2022-11-16 12:22:00,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7683f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:22:00, skipping insertion in model container [2022-11-16 12:22:00,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:00" (3/3) ... [2022-11-16 12:22:00,038 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-16 12:22:00,057 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:22:00,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 12:22:00,168 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:22:00,178 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20df3016, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:22:00,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-16 12:22:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 1121 states, 1114 states have (on average 1.8285457809694794) internal successors, (2037), 1120 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:00,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-16 12:22:00,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:00,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:00,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:00,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:00,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1703299446, now seen corresponding path program 1 times [2022-11-16 12:22:00,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:00,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673106496] [2022-11-16 12:22:00,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:00,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:00,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:00,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673106496] [2022-11-16 12:22:00,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673106496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:00,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:00,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:22:00,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522961964] [2022-11-16 12:22:00,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:00,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:22:00,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:00,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:22:00,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:22:00,916 INFO L87 Difference]: Start difference. First operand has 1121 states, 1114 states have (on average 1.8285457809694794) internal successors, (2037), 1120 states have internal predecessors, (2037), 0 states have call successors, (0), 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 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:02,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:02,618 INFO L93 Difference]: Finished difference Result 2061 states and 3646 transitions. [2022-11-16 12:22:02,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:22:02,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-11-16 12:22:02,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:02,641 INFO L225 Difference]: With dead ends: 2061 [2022-11-16 12:22:02,641 INFO L226 Difference]: Without dead ends: 1339 [2022-11-16 12:22:02,646 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:02,650 INFO L413 NwaCegarLoop]: 1064 mSDtfsCounter, 6445 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6445 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:02,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6445 Valid, 1421 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:22:02,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-11-16 12:22:02,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1327. [2022-11-16 12:22:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1321 states have (on average 1.336109008327025) internal successors, (1765), 1326 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:02,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1765 transitions. [2022-11-16 12:22:02,786 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1765 transitions. Word has length 51 [2022-11-16 12:22:02,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:02,786 INFO L495 AbstractCegarLoop]: Abstraction has 1327 states and 1765 transitions. [2022-11-16 12:22:02,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:02,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1765 transitions. [2022-11-16 12:22:02,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-16 12:22:02,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:02,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:02,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:22:02,791 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:02,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:02,792 INFO L85 PathProgramCache]: Analyzing trace with hash 199718681, now seen corresponding path program 1 times [2022-11-16 12:22:02,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:02,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500596107] [2022-11-16 12:22:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:02,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:02,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:02,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500596107] [2022-11-16 12:22:02,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500596107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:03,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:03,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:22:03,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385473315] [2022-11-16 12:22:03,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:03,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:22:03,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:22:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:22:03,005 INFO L87 Difference]: Start difference. First operand 1327 states and 1765 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:04,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:04,270 INFO L93 Difference]: Finished difference Result 2510 states and 3426 transitions. [2022-11-16 12:22:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:22:04,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-11-16 12:22:04,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:04,279 INFO L225 Difference]: With dead ends: 2510 [2022-11-16 12:22:04,280 INFO L226 Difference]: Without dead ends: 1697 [2022-11-16 12:22:04,284 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:04,285 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 4284 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4284 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:04,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4284 Valid, 820 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:22:04,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2022-11-16 12:22:04,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1687. [2022-11-16 12:22:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1681 states have (on average 1.3652587745389648) internal successors, (2295), 1686 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:04,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2295 transitions. [2022-11-16 12:22:04,390 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2295 transitions. Word has length 51 [2022-11-16 12:22:04,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:04,391 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2295 transitions. [2022-11-16 12:22:04,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:04,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2295 transitions. [2022-11-16 12:22:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-16 12:22:04,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:04,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:04,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:22:04,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:04,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:04,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1084504014, now seen corresponding path program 1 times [2022-11-16 12:22:04,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:04,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140931242] [2022-11-16 12:22:04,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:04,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:04,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:04,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140931242] [2022-11-16 12:22:04,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140931242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:04,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:04,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:22:04,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386473646] [2022-11-16 12:22:04,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:04,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:22:04,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:04,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:22:04,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:22:04,525 INFO L87 Difference]: Start difference. First operand 1687 states and 2295 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:05,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:05,767 INFO L93 Difference]: Finished difference Result 3362 states and 4642 transitions. [2022-11-16 12:22:05,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:22:05,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-11-16 12:22:05,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:05,778 INFO L225 Difference]: With dead ends: 3362 [2022-11-16 12:22:05,778 INFO L226 Difference]: Without dead ends: 2476 [2022-11-16 12:22:05,780 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:05,784 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 3830 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3830 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:05,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3830 Valid, 776 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:22:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2022-11-16 12:22:05,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2470. [2022-11-16 12:22:05,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.364448051948052) internal successors, (3362), 2469 states have internal predecessors, (3362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:05,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3362 transitions. [2022-11-16 12:22:05,962 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3362 transitions. Word has length 51 [2022-11-16 12:22:05,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:05,962 INFO L495 AbstractCegarLoop]: Abstraction has 2470 states and 3362 transitions. [2022-11-16 12:22:05,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:05,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3362 transitions. [2022-11-16 12:22:05,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-16 12:22:05,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:05,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:05,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:22:05,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:05,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:05,967 INFO L85 PathProgramCache]: Analyzing trace with hash -614217846, now seen corresponding path program 1 times [2022-11-16 12:22:05,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:05,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285195816] [2022-11-16 12:22:05,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:05,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:06,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:06,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285195816] [2022-11-16 12:22:06,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285195816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:06,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:06,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:22:06,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893235266] [2022-11-16 12:22:06,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:06,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:22:06,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:06,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:22:06,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:22:06,447 INFO L87 Difference]: Start difference. First operand 2470 states and 3362 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:09,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:09,484 INFO L93 Difference]: Finished difference Result 5298 states and 7527 transitions. [2022-11-16 12:22:09,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:22:09,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-16 12:22:09,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:09,506 INFO L225 Difference]: With dead ends: 5298 [2022-11-16 12:22:09,506 INFO L226 Difference]: Without dead ends: 5293 [2022-11-16 12:22:09,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:22:09,518 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 4005 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 2917 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4005 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 2955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:09,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4005 Valid, 3082 Invalid, 2955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2917 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 12:22:09,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5293 states. [2022-11-16 12:22:09,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5293 to 2470. [2022-11-16 12:22:09,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.3640422077922079) internal successors, (3361), 2469 states have internal predecessors, (3361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:09,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3361 transitions. [2022-11-16 12:22:09,834 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3361 transitions. Word has length 52 [2022-11-16 12:22:09,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:09,834 INFO L495 AbstractCegarLoop]: Abstraction has 2470 states and 3361 transitions. [2022-11-16 12:22:09,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:09,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3361 transitions. [2022-11-16 12:22:09,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-16 12:22:09,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:09,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:09,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:22:09,839 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:09,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:09,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1085905725, now seen corresponding path program 1 times [2022-11-16 12:22:09,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:09,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074941442] [2022-11-16 12:22:09,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:09,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:10,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:10,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074941442] [2022-11-16 12:22:10,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074941442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:10,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:10,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:22:10,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620779572] [2022-11-16 12:22:10,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:10,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:22:10,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:10,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:22:10,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:22:10,156 INFO L87 Difference]: Start difference. First operand 2470 states and 3361 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:13,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:13,349 INFO L93 Difference]: Finished difference Result 5694 states and 8151 transitions. [2022-11-16 12:22:13,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:22:13,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-16 12:22:13,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:13,369 INFO L225 Difference]: With dead ends: 5694 [2022-11-16 12:22:13,369 INFO L226 Difference]: Without dead ends: 5187 [2022-11-16 12:22:13,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:22:13,372 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 4149 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 2972 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4149 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:13,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4149 Valid, 3219 Invalid, 3013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2972 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-16 12:22:13,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5187 states. [2022-11-16 12:22:13,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5187 to 2470. [2022-11-16 12:22:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.3636363636363635) internal successors, (3360), 2469 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:13,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3360 transitions. [2022-11-16 12:22:13,665 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3360 transitions. Word has length 52 [2022-11-16 12:22:13,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:13,667 INFO L495 AbstractCegarLoop]: Abstraction has 2470 states and 3360 transitions. [2022-11-16 12:22:13,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:13,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3360 transitions. [2022-11-16 12:22:13,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-16 12:22:13,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:13,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:13,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:22:13,677 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:13,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:13,678 INFO L85 PathProgramCache]: Analyzing trace with hash -592999742, now seen corresponding path program 1 times [2022-11-16 12:22:13,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:13,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126787958] [2022-11-16 12:22:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:13,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:14,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:14,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126787958] [2022-11-16 12:22:14,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126787958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:14,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:14,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:22:14,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299602183] [2022-11-16 12:22:14,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:14,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:22:14,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:14,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:22:14,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:22:14,013 INFO L87 Difference]: Start difference. First operand 2470 states and 3360 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:15,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:15,912 INFO L93 Difference]: Finished difference Result 4398 states and 6210 transitions. [2022-11-16 12:22:15,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:22:15,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-16 12:22:15,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:15,927 INFO L225 Difference]: With dead ends: 4398 [2022-11-16 12:22:15,927 INFO L226 Difference]: Without dead ends: 3751 [2022-11-16 12:22:15,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:22:15,930 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 5618 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5618 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:15,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5618 Valid, 1796 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:22:15,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3751 states. [2022-11-16 12:22:16,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3751 to 2470. [2022-11-16 12:22:16,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.3632305194805194) internal successors, (3359), 2469 states have internal predecessors, (3359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3359 transitions. [2022-11-16 12:22:16,206 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3359 transitions. Word has length 52 [2022-11-16 12:22:16,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:16,207 INFO L495 AbstractCegarLoop]: Abstraction has 2470 states and 3359 transitions. [2022-11-16 12:22:16,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:16,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3359 transitions. [2022-11-16 12:22:16,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-16 12:22:16,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:16,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:16,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:22:16,211 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:16,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:16,211 INFO L85 PathProgramCache]: Analyzing trace with hash 2034797542, now seen corresponding path program 1 times [2022-11-16 12:22:16,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:16,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233764110] [2022-11-16 12:22:16,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:16,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:16,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:16,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:16,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233764110] [2022-11-16 12:22:16,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233764110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:16,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:16,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:22:16,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255829708] [2022-11-16 12:22:16,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:16,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:16,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:16,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:16,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:16,293 INFO L87 Difference]: Start difference. First operand 2470 states and 3359 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:16,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:16,788 INFO L93 Difference]: Finished difference Result 3558 states and 4984 transitions. [2022-11-16 12:22:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:22:16,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-11-16 12:22:16,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:16,797 INFO L225 Difference]: With dead ends: 3558 [2022-11-16 12:22:16,797 INFO L226 Difference]: Without dead ends: 2241 [2022-11-16 12:22:16,799 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:16,799 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 622 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:16,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1291 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:22:16,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-11-16 12:22:17,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2239. [2022-11-16 12:22:17,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 2233 states have (on average 1.353784146887595) internal successors, (3023), 2238 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:17,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 3023 transitions. [2022-11-16 12:22:17,138 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 3023 transitions. Word has length 53 [2022-11-16 12:22:17,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:17,139 INFO L495 AbstractCegarLoop]: Abstraction has 2239 states and 3023 transitions. [2022-11-16 12:22:17,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:17,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 3023 transitions. [2022-11-16 12:22:17,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-16 12:22:17,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:17,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:17,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:22:17,142 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:17,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:17,143 INFO L85 PathProgramCache]: Analyzing trace with hash -512099954, now seen corresponding path program 1 times [2022-11-16 12:22:17,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:17,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415512252] [2022-11-16 12:22:17,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:17,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:17,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:17,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:17,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415512252] [2022-11-16 12:22:17,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415512252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:17,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:17,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:22:17,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154806563] [2022-11-16 12:22:17,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:17,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:17,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:17,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:17,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:17,221 INFO L87 Difference]: Start difference. First operand 2239 states and 3023 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:17,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:17,804 INFO L93 Difference]: Finished difference Result 3804 states and 5441 transitions. [2022-11-16 12:22:17,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:22:17,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-11-16 12:22:17,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:17,816 INFO L225 Difference]: With dead ends: 3804 [2022-11-16 12:22:17,817 INFO L226 Difference]: Without dead ends: 2763 [2022-11-16 12:22:17,819 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:17,820 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 457 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:17,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1386 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:22:17,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2022-11-16 12:22:18,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2761. [2022-11-16 12:22:18,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 2755 states have (on average 1.3978221415607985) internal successors, (3851), 2760 states have internal predecessors, (3851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 3851 transitions. [2022-11-16 12:22:18,309 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 3851 transitions. Word has length 53 [2022-11-16 12:22:18,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:18,310 INFO L495 AbstractCegarLoop]: Abstraction has 2761 states and 3851 transitions. [2022-11-16 12:22:18,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 3851 transitions. [2022-11-16 12:22:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-16 12:22:18,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:18,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:18,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:22:18,313 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:18,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:18,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1062086298, now seen corresponding path program 1 times [2022-11-16 12:22:18,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:18,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535546243] [2022-11-16 12:22:18,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:18,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:18,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:18,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:18,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535546243] [2022-11-16 12:22:18,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535546243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:18,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:18,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:22:18,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709668497] [2022-11-16 12:22:18,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:18,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:18,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:18,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:18,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:18,394 INFO L87 Difference]: Start difference. First operand 2761 states and 3851 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:19,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:19,123 INFO L93 Difference]: Finished difference Result 5591 states and 8154 transitions. [2022-11-16 12:22:19,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:22:19,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-11-16 12:22:19,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:19,137 INFO L225 Difference]: With dead ends: 5591 [2022-11-16 12:22:19,137 INFO L226 Difference]: Without dead ends: 3827 [2022-11-16 12:22:19,140 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:19,140 INFO L413 NwaCegarLoop]: 912 mSDtfsCounter, 434 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:19,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1400 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:22:19,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states. [2022-11-16 12:22:19,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 3825. [2022-11-16 12:22:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3825 states, 3819 states have (on average 1.422623723487824) internal successors, (5433), 3824 states have internal predecessors, (5433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:19,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3825 states to 3825 states and 5433 transitions. [2022-11-16 12:22:19,870 INFO L78 Accepts]: Start accepts. Automaton has 3825 states and 5433 transitions. Word has length 53 [2022-11-16 12:22:19,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:19,870 INFO L495 AbstractCegarLoop]: Abstraction has 3825 states and 5433 transitions. [2022-11-16 12:22:19,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:19,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3825 states and 5433 transitions. [2022-11-16 12:22:19,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-16 12:22:19,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:19,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:19,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:22:19,873 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:19,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:19,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1383066013, now seen corresponding path program 1 times [2022-11-16 12:22:19,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:19,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738785943] [2022-11-16 12:22:19,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:19,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:19,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:19,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738785943] [2022-11-16 12:22:19,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738785943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:19,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:19,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:22:19,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88428594] [2022-11-16 12:22:19,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:19,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:19,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:19,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:19,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:19,967 INFO L87 Difference]: Start difference. First operand 3825 states and 5433 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:20,999 INFO L93 Difference]: Finished difference Result 7514 states and 10894 transitions. [2022-11-16 12:22:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:22:20,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-11-16 12:22:21,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:21,012 INFO L225 Difference]: With dead ends: 7514 [2022-11-16 12:22:21,013 INFO L226 Difference]: Without dead ends: 4238 [2022-11-16 12:22:21,018 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:21,019 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 645 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:21,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 974 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:22:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2022-11-16 12:22:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 3413. [2022-11-16 12:22:21,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3408 states have (on average 1.4360328638497653) internal successors, (4894), 3412 states have internal predecessors, (4894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:21,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 4894 transitions. [2022-11-16 12:22:21,522 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 4894 transitions. Word has length 54 [2022-11-16 12:22:21,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:21,522 INFO L495 AbstractCegarLoop]: Abstraction has 3413 states and 4894 transitions. [2022-11-16 12:22:21,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:21,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 4894 transitions. [2022-11-16 12:22:21,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-16 12:22:21,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:21,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:21,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:22:21,525 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:21,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:21,525 INFO L85 PathProgramCache]: Analyzing trace with hash -111097732, now seen corresponding path program 1 times [2022-11-16 12:22:21,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:21,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326589403] [2022-11-16 12:22:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:21,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:21,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:21,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:21,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326589403] [2022-11-16 12:22:21,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326589403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:21,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:21,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:22:21,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575246464] [2022-11-16 12:22:21,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:21,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:21,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:21,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:21,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:21,583 INFO L87 Difference]: Start difference. First operand 3413 states and 4894 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:22,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:22,463 INFO L93 Difference]: Finished difference Result 6968 states and 10156 transitions. [2022-11-16 12:22:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:22:22,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-11-16 12:22:22,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:22,471 INFO L225 Difference]: With dead ends: 6968 [2022-11-16 12:22:22,471 INFO L226 Difference]: Without dead ends: 3921 [2022-11-16 12:22:22,476 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:22,477 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 523 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:22,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 737 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:22:22,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3921 states. [2022-11-16 12:22:22,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3921 to 3157. [2022-11-16 12:22:22,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 3153 states have (on average 1.4487789406914051) internal successors, (4568), 3156 states have internal predecessors, (4568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 4568 transitions. [2022-11-16 12:22:22,940 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 4568 transitions. Word has length 54 [2022-11-16 12:22:22,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:22,940 INFO L495 AbstractCegarLoop]: Abstraction has 3157 states and 4568 transitions. [2022-11-16 12:22:22,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:22,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 4568 transitions. [2022-11-16 12:22:22,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-16 12:22:22,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:22,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:22,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:22:22,943 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:22,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:22,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1920628919, now seen corresponding path program 1 times [2022-11-16 12:22:22,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:22,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044744409] [2022-11-16 12:22:22,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:22,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:23,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:23,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044744409] [2022-11-16 12:22:23,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044744409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:23,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:23,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:22:23,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014233870] [2022-11-16 12:22:23,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:23,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:22:23,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:23,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:22:23,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:22:23,585 INFO L87 Difference]: Start difference. First operand 3157 states and 4568 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:26,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:26,300 INFO L93 Difference]: Finished difference Result 6885 states and 9991 transitions. [2022-11-16 12:22:26,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:22:26,300 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-11-16 12:22:26,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:26,342 INFO L225 Difference]: With dead ends: 6885 [2022-11-16 12:22:26,342 INFO L226 Difference]: Without dead ends: 6789 [2022-11-16 12:22:26,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:22:26,345 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3352 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3352 SdHoareTripleChecker+Valid, 3351 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:26,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3352 Valid, 3351 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:22:26,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2022-11-16 12:22:26,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 3110. [2022-11-16 12:22:26,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3108 states have (on average 1.4507722007722008) internal successors, (4509), 3109 states have internal predecessors, (4509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:26,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 4509 transitions. [2022-11-16 12:22:26,976 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 4509 transitions. Word has length 55 [2022-11-16 12:22:26,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:26,976 INFO L495 AbstractCegarLoop]: Abstraction has 3110 states and 4509 transitions. [2022-11-16 12:22:26,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:26,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 4509 transitions. [2022-11-16 12:22:26,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-16 12:22:26,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:26,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:26,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:22:26,980 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:26,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:26,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1431726049, now seen corresponding path program 1 times [2022-11-16 12:22:26,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:26,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376600672] [2022-11-16 12:22:26,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:26,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:28,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:28,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:28,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376600672] [2022-11-16 12:22:28,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376600672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:28,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:28,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 12:22:28,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707493003] [2022-11-16 12:22:28,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:28,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 12:22:28,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:28,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 12:22:28,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:22:28,208 INFO L87 Difference]: Start difference. First operand 3110 states and 4509 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:33,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:33,353 INFO L93 Difference]: Finished difference Result 5365 states and 7757 transitions. [2022-11-16 12:22:33,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:22:33,354 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-11-16 12:22:33,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:33,364 INFO L225 Difference]: With dead ends: 5365 [2022-11-16 12:22:33,364 INFO L226 Difference]: Without dead ends: 5361 [2022-11-16 12:22:33,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=225, Invalid=1035, Unknown=0, NotChecked=0, Total=1260 [2022-11-16 12:22:33,367 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 4760 mSDsluCounter, 6569 mSDsCounter, 0 mSdLazyCounter, 2904 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4760 SdHoareTripleChecker+Valid, 7186 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:33,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4760 Valid, 7186 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2904 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 12:22:33,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5361 states. [2022-11-16 12:22:34,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5361 to 3122. [2022-11-16 12:22:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3120 states have (on average 1.4506410256410256) internal successors, (4526), 3121 states have internal predecessors, (4526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:34,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 4526 transitions. [2022-11-16 12:22:34,370 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 4526 transitions. Word has length 55 [2022-11-16 12:22:34,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:34,371 INFO L495 AbstractCegarLoop]: Abstraction has 3122 states and 4526 transitions. [2022-11-16 12:22:34,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:34,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 4526 transitions. [2022-11-16 12:22:34,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-16 12:22:34,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:34,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:34,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:22:34,373 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:34,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:34,374 INFO L85 PathProgramCache]: Analyzing trace with hash -434174057, now seen corresponding path program 1 times [2022-11-16 12:22:34,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:34,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057894811] [2022-11-16 12:22:34,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:34,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:35,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:35,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057894811] [2022-11-16 12:22:35,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057894811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:35,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:35,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 12:22:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532670494] [2022-11-16 12:22:35,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:35,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:22:35,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:35,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:22:35,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:22:35,276 INFO L87 Difference]: Start difference. First operand 3122 states and 4526 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:39,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:39,356 INFO L93 Difference]: Finished difference Result 5532 states and 7987 transitions. [2022-11-16 12:22:39,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:22:39,356 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-11-16 12:22:39,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:39,367 INFO L225 Difference]: With dead ends: 5532 [2022-11-16 12:22:39,367 INFO L226 Difference]: Without dead ends: 5455 [2022-11-16 12:22:39,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2022-11-16 12:22:39,370 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 4072 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4072 SdHoareTripleChecker+Valid, 5034 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:39,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4072 Valid, 5034 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:22:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2022-11-16 12:22:40,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 3113. [2022-11-16 12:22:40,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3112 states have (on average 1.4505141388174807) internal successors, (4514), 3112 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:40,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 4514 transitions. [2022-11-16 12:22:40,279 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 4514 transitions. Word has length 56 [2022-11-16 12:22:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:40,279 INFO L495 AbstractCegarLoop]: Abstraction has 3113 states and 4514 transitions. [2022-11-16 12:22:40,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:40,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 4514 transitions. [2022-11-16 12:22:40,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-16 12:22:40,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:40,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:40,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:22:40,282 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:40,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:40,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1827161320, now seen corresponding path program 1 times [2022-11-16 12:22:40,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:40,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562251351] [2022-11-16 12:22:40,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:40,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:40,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:40,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562251351] [2022-11-16 12:22:40,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562251351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:40,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:40,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:22:40,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113452302] [2022-11-16 12:22:40,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:40,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:22:40,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:40,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:22:40,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:22:40,399 INFO L87 Difference]: Start difference. First operand 3113 states and 4514 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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) [2022-11-16 12:22:42,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:42,688 INFO L93 Difference]: Finished difference Result 9877 states and 14618 transitions. [2022-11-16 12:22:42,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:22:42,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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 [2022-11-16 12:22:42,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:42,701 INFO L225 Difference]: With dead ends: 9877 [2022-11-16 12:22:42,701 INFO L226 Difference]: Without dead ends: 7251 [2022-11-16 12:22:42,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:22:42,707 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 1456 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:42,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 978 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:22:42,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7251 states. [2022-11-16 12:22:44,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7251 to 5459. [2022-11-16 12:22:44,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 1.4474166361304508) internal successors, (7900), 5458 states have internal predecessors, (7900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:44,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 7900 transitions. [2022-11-16 12:22:44,056 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 7900 transitions. Word has length 60 [2022-11-16 12:22:44,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:44,056 INFO L495 AbstractCegarLoop]: Abstraction has 5459 states and 7900 transitions. [2022-11-16 12:22:44,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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) [2022-11-16 12:22:44,057 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 7900 transitions. [2022-11-16 12:22:44,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-16 12:22:44,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:44,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:44,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:22:44,060 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:44,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:44,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1073283694, now seen corresponding path program 1 times [2022-11-16 12:22:44,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:44,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105639157] [2022-11-16 12:22:44,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:44,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:44,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:44,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105639157] [2022-11-16 12:22:44,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105639157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:44,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:44,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:22:44,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347811547] [2022-11-16 12:22:44,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:44,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:22:44,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:44,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:22:44,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:22:44,167 INFO L87 Difference]: Start difference. First operand 5459 states and 7900 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:45,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:45,479 INFO L93 Difference]: Finished difference Result 8607 states and 12493 transitions. [2022-11-16 12:22:45,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:22:45,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-16 12:22:45,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:45,484 INFO L225 Difference]: With dead ends: 8607 [2022-11-16 12:22:45,484 INFO L226 Difference]: Without dead ends: 3605 [2022-11-16 12:22:45,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:22:45,490 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 745 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:45,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 782 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:22:45,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2022-11-16 12:22:46,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3601. [2022-11-16 12:22:46,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 3600 states have (on average 1.4219444444444445) internal successors, (5119), 3600 states have internal predecessors, (5119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:46,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5119 transitions. [2022-11-16 12:22:46,890 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5119 transitions. Word has length 61 [2022-11-16 12:22:46,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:46,891 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5119 transitions. [2022-11-16 12:22:46,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5119 transitions. [2022-11-16 12:22:46,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-16 12:22:46,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:46,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:46,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:22:46,894 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:46,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:46,895 INFO L85 PathProgramCache]: Analyzing trace with hash 778828119, now seen corresponding path program 1 times [2022-11-16 12:22:46,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:46,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189551827] [2022-11-16 12:22:46,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:46,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:47,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:47,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:47,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189551827] [2022-11-16 12:22:47,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189551827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:47,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:47,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:22:47,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29064545] [2022-11-16 12:22:47,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:47,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:47,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:47,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:47,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:47,006 INFO L87 Difference]: Start difference. First operand 3601 states and 5119 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:48,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:48,968 INFO L93 Difference]: Finished difference Result 9575 states and 13793 transitions. [2022-11-16 12:22:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:22:48,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-16 12:22:48,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:48,976 INFO L225 Difference]: With dead ends: 9575 [2022-11-16 12:22:48,976 INFO L226 Difference]: Without dead ends: 6431 [2022-11-16 12:22:48,980 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:48,981 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 241 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:48,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 766 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:22:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6431 states. [2022-11-16 12:22:50,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6431 to 6013. [2022-11-16 12:22:50,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 6012 states have (on average 1.4273120425815036) internal successors, (8581), 6012 states have internal predecessors, (8581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 8581 transitions. [2022-11-16 12:22:50,688 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 8581 transitions. Word has length 61 [2022-11-16 12:22:50,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:50,689 INFO L495 AbstractCegarLoop]: Abstraction has 6013 states and 8581 transitions. [2022-11-16 12:22:50,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:50,689 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 8581 transitions. [2022-11-16 12:22:50,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-16 12:22:50,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:50,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:50,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:22:50,691 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:50,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:50,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1461952547, now seen corresponding path program 1 times [2022-11-16 12:22:50,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:50,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365152180] [2022-11-16 12:22:50,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:50,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:50,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:50,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365152180] [2022-11-16 12:22:50,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365152180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:50,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:50,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:22:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116169714] [2022-11-16 12:22:50,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:50,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:22:50,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:50,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:22:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:22:50,915 INFO L87 Difference]: Start difference. First operand 6013 states and 8581 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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) [2022-11-16 12:22:55,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:55,460 INFO L93 Difference]: Finished difference Result 12672 states and 17893 transitions. [2022-11-16 12:22:55,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:22:55,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 [2022-11-16 12:22:55,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:55,475 INFO L225 Difference]: With dead ends: 12672 [2022-11-16 12:22:55,475 INFO L226 Difference]: Without dead ends: 12670 [2022-11-16 12:22:55,478 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:22:55,478 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 562 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:55,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 2140 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:22:55,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12670 states. [2022-11-16 12:22:57,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12670 to 6457. [2022-11-16 12:22:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6457 states, 6456 states have (on average 1.3979244114002478) internal successors, (9025), 6456 states have internal predecessors, (9025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:57,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6457 states to 6457 states and 9025 transitions. [2022-11-16 12:22:57,626 INFO L78 Accepts]: Start accepts. Automaton has 6457 states and 9025 transitions. Word has length 64 [2022-11-16 12:22:57,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:57,626 INFO L495 AbstractCegarLoop]: Abstraction has 6457 states and 9025 transitions. [2022-11-16 12:22:57,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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) [2022-11-16 12:22:57,627 INFO L276 IsEmpty]: Start isEmpty. Operand 6457 states and 9025 transitions. [2022-11-16 12:22:57,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 12:22:57,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:57,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:57,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:22:57,629 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:22:57,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:57,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1754067009, now seen corresponding path program 1 times [2022-11-16 12:22:57,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:57,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104500962] [2022-11-16 12:22:57,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:57,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:57,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:57,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104500962] [2022-11-16 12:22:57,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104500962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:57,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:57,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:22:57,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586060983] [2022-11-16 12:22:57,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:57,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:57,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:57,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:57,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:57,689 INFO L87 Difference]: Start difference. First operand 6457 states and 9025 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2022-11-16 12:23:01,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:01,867 INFO L93 Difference]: Finished difference Result 17249 states and 24281 transitions. [2022-11-16 12:23:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:23:01,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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 [2022-11-16 12:23:01,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:01,879 INFO L225 Difference]: With dead ends: 17249 [2022-11-16 12:23:01,879 INFO L226 Difference]: Without dead ends: 11237 [2022-11-16 12:23:01,884 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:23:01,885 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 263 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:01,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 694 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:23:01,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11237 states. [2022-11-16 12:23:05,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11237 to 11087. [2022-11-16 12:23:05,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11087 states, 11086 states have (on average 1.381832942449937) internal successors, (15319), 11086 states have internal predecessors, (15319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:05,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11087 states to 11087 states and 15319 transitions. [2022-11-16 12:23:05,723 INFO L78 Accepts]: Start accepts. Automaton has 11087 states and 15319 transitions. Word has length 65 [2022-11-16 12:23:05,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:05,724 INFO L495 AbstractCegarLoop]: Abstraction has 11087 states and 15319 transitions. [2022-11-16 12:23:05,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2022-11-16 12:23:05,724 INFO L276 IsEmpty]: Start isEmpty. Operand 11087 states and 15319 transitions. [2022-11-16 12:23:05,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-16 12:23:05,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:05,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:05,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:23:05,728 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:23:05,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:05,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1595040439, now seen corresponding path program 1 times [2022-11-16 12:23:05,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:05,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579461885] [2022-11-16 12:23:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:05,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:05,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:05,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579461885] [2022-11-16 12:23:05,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579461885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:05,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:05,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:05,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112252330] [2022-11-16 12:23:05,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:05,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:23:05,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:05,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:23:05,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:23:05,890 INFO L87 Difference]: Start difference. First operand 11087 states and 15319 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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) [2022-11-16 12:23:11,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:11,609 INFO L93 Difference]: Finished difference Result 19431 states and 26963 transitions. [2022-11-16 12:23:11,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:23:11,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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 [2022-11-16 12:23:11,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:11,627 INFO L225 Difference]: With dead ends: 19431 [2022-11-16 12:23:11,627 INFO L226 Difference]: Without dead ends: 15977 [2022-11-16 12:23:11,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:23:11,638 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 962 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:11,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 1205 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:23:11,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15977 states. [2022-11-16 12:23:16,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15977 to 13874. [2022-11-16 12:23:16,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13874 states, 13873 states have (on average 1.3785050097311324) internal successors, (19124), 13873 states have internal predecessors, (19124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13874 states to 13874 states and 19124 transitions. [2022-11-16 12:23:16,764 INFO L78 Accepts]: Start accepts. Automaton has 13874 states and 19124 transitions. Word has length 66 [2022-11-16 12:23:16,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:16,765 INFO L495 AbstractCegarLoop]: Abstraction has 13874 states and 19124 transitions. [2022-11-16 12:23:16,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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) [2022-11-16 12:23:16,765 INFO L276 IsEmpty]: Start isEmpty. Operand 13874 states and 19124 transitions. [2022-11-16 12:23:16,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 12:23:16,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:16,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:16,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:23:16,769 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:23:16,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:16,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1924581840, now seen corresponding path program 1 times [2022-11-16 12:23:16,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:16,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177797240] [2022-11-16 12:23:16,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:16,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:16,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:16,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177797240] [2022-11-16 12:23:16,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177797240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:16,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:16,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:23:16,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391052322] [2022-11-16 12:23:16,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:16,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:23:16,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:16,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:23:16,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:23:16,868 INFO L87 Difference]: Start difference. First operand 13874 states and 19124 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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) [2022-11-16 12:23:21,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:21,130 INFO L93 Difference]: Finished difference Result 16736 states and 23010 transitions. [2022-11-16 12:23:21,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:23:21,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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 [2022-11-16 12:23:21,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:21,145 INFO L225 Difference]: With dead ends: 16736 [2022-11-16 12:23:21,145 INFO L226 Difference]: Without dead ends: 11000 [2022-11-16 12:23:21,152 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:23:21,152 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 175 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:21,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 828 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:23:21,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11000 states. [2022-11-16 12:23:25,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11000 to 10929. [2022-11-16 12:23:25,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10929 states, 10928 states have (on average 1.353770131771596) internal successors, (14794), 10928 states have internal predecessors, (14794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:25,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10929 states to 10929 states and 14794 transitions. [2022-11-16 12:23:25,071 INFO L78 Accepts]: Start accepts. Automaton has 10929 states and 14794 transitions. Word has length 67 [2022-11-16 12:23:25,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:25,072 INFO L495 AbstractCegarLoop]: Abstraction has 10929 states and 14794 transitions. [2022-11-16 12:23:25,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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) [2022-11-16 12:23:25,072 INFO L276 IsEmpty]: Start isEmpty. Operand 10929 states and 14794 transitions. [2022-11-16 12:23:25,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:23:25,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:25,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:25,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:23:25,075 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:23:25,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:25,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1353553607, now seen corresponding path program 1 times [2022-11-16 12:23:25,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:25,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613059444] [2022-11-16 12:23:25,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:25,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:25,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:25,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613059444] [2022-11-16 12:23:25,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613059444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:25,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:25,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939343197] [2022-11-16 12:23:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:25,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:23:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:23:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:23:25,197 INFO L87 Difference]: Start difference. First operand 10929 states and 14794 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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) [2022-11-16 12:23:30,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:30,488 INFO L93 Difference]: Finished difference Result 15778 states and 21511 transitions. [2022-11-16 12:23:30,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:23:30,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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 [2022-11-16 12:23:30,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:30,503 INFO L225 Difference]: With dead ends: 15778 [2022-11-16 12:23:30,504 INFO L226 Difference]: Without dead ends: 13360 [2022-11-16 12:23:30,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:23:30,508 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 953 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:30,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 1116 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:23:30,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13360 states. [2022-11-16 12:23:35,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13360 to 12698. [2022-11-16 12:23:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12698 states, 12697 states have (on average 1.3533118059384106) internal successors, (17183), 12697 states have internal predecessors, (17183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12698 states to 12698 states and 17183 transitions. [2022-11-16 12:23:35,148 INFO L78 Accepts]: Start accepts. Automaton has 12698 states and 17183 transitions. Word has length 69 [2022-11-16 12:23:35,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:35,149 INFO L495 AbstractCegarLoop]: Abstraction has 12698 states and 17183 transitions. [2022-11-16 12:23:35,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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) [2022-11-16 12:23:35,149 INFO L276 IsEmpty]: Start isEmpty. Operand 12698 states and 17183 transitions. [2022-11-16 12:23:35,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:23:35,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:35,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:35,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:23:35,152 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:23:35,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:35,153 INFO L85 PathProgramCache]: Analyzing trace with hash -537948960, now seen corresponding path program 1 times [2022-11-16 12:23:35,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:35,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771360202] [2022-11-16 12:23:35,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:35,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:35,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:35,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771360202] [2022-11-16 12:23:35,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771360202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:35,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:35,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:23:35,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22145237] [2022-11-16 12:23:35,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:35,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:23:35,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:35,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:23:35,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:23:35,305 INFO L87 Difference]: Start difference. First operand 12698 states and 17183 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 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) [2022-11-16 12:23:49,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:49,067 INFO L93 Difference]: Finished difference Result 38804 states and 52467 transitions. [2022-11-16 12:23:49,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:23:49,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 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 [2022-11-16 12:23:49,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:49,106 INFO L225 Difference]: With dead ends: 38804 [2022-11-16 12:23:49,106 INFO L226 Difference]: Without dead ends: 31210 [2022-11-16 12:23:49,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:23:49,114 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 2478 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:49,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2478 Valid, 685 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:23:49,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31210 states. [2022-11-16 12:23:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31210 to 15074. [2022-11-16 12:23:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15074 states, 15073 states have (on average 1.344722351224043) internal successors, (20269), 15073 states have internal predecessors, (20269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15074 states to 15074 states and 20269 transitions. [2022-11-16 12:23:55,167 INFO L78 Accepts]: Start accepts. Automaton has 15074 states and 20269 transitions. Word has length 69 [2022-11-16 12:23:55,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:55,167 INFO L495 AbstractCegarLoop]: Abstraction has 15074 states and 20269 transitions. [2022-11-16 12:23:55,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 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) [2022-11-16 12:23:55,167 INFO L276 IsEmpty]: Start isEmpty. Operand 15074 states and 20269 transitions. [2022-11-16 12:23:55,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-16 12:23:55,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:55,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:55,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:23:55,170 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:23:55,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:55,171 INFO L85 PathProgramCache]: Analyzing trace with hash -954661067, now seen corresponding path program 1 times [2022-11-16 12:23:55,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:55,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537961409] [2022-11-16 12:23:55,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:55,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:55,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:55,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:55,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537961409] [2022-11-16 12:23:55,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537961409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:55,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:55,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:55,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330547780] [2022-11-16 12:23:55,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:55,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:23:55,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:55,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:23:55,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:23:55,288 INFO L87 Difference]: Start difference. First operand 15074 states and 20269 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:03,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:03,006 INFO L93 Difference]: Finished difference Result 23498 states and 31803 transitions. [2022-11-16 12:24:03,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:24:03,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-11-16 12:24:03,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:03,027 INFO L225 Difference]: With dead ends: 23498 [2022-11-16 12:24:03,027 INFO L226 Difference]: Without dead ends: 19568 [2022-11-16 12:24:03,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:24:03,034 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 874 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:03,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 1164 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:24:03,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19568 states. [2022-11-16 12:24:10,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19568 to 18318. [2022-11-16 12:24:10,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18318 states, 18317 states have (on average 1.3445979145056506) internal successors, (24629), 18317 states have internal predecessors, (24629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:10,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18318 states to 18318 states and 24629 transitions. [2022-11-16 12:24:10,141 INFO L78 Accepts]: Start accepts. Automaton has 18318 states and 24629 transitions. Word has length 71 [2022-11-16 12:24:10,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:10,141 INFO L495 AbstractCegarLoop]: Abstraction has 18318 states and 24629 transitions. [2022-11-16 12:24:10,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 18318 states and 24629 transitions. [2022-11-16 12:24:10,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 12:24:10,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:10,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:10,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:24:10,146 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:24:10,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:10,147 INFO L85 PathProgramCache]: Analyzing trace with hash 531488628, now seen corresponding path program 1 times [2022-11-16 12:24:10,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:10,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202569503] [2022-11-16 12:24:10,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:10,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:24:10,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:24:10,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202569503] [2022-11-16 12:24:10,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202569503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:24:10,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:24:10,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:24:10,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644399884] [2022-11-16 12:24:10,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:10,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:24:10,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:24:10,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:24:10,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:24:10,295 INFO L87 Difference]: Start difference. First operand 18318 states and 24629 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:19,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:19,390 INFO L93 Difference]: Finished difference Result 28208 states and 38056 transitions. [2022-11-16 12:24:19,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:24:19,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-16 12:24:19,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:19,418 INFO L225 Difference]: With dead ends: 28208 [2022-11-16 12:24:19,418 INFO L226 Difference]: Without dead ends: 22930 [2022-11-16 12:24:19,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:24:19,426 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1153 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:19,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 1068 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:24:19,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22930 states. [2022-11-16 12:24:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22930 to 21634. [2022-11-16 12:24:28,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21634 states, 21633 states have (on average 1.3480793232561366) internal successors, (29163), 21633 states have internal predecessors, (29163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:28,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21634 states to 21634 states and 29163 transitions. [2022-11-16 12:24:28,052 INFO L78 Accepts]: Start accepts. Automaton has 21634 states and 29163 transitions. Word has length 77 [2022-11-16 12:24:28,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:28,052 INFO L495 AbstractCegarLoop]: Abstraction has 21634 states and 29163 transitions. [2022-11-16 12:24:28,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 21634 states and 29163 transitions. [2022-11-16 12:24:28,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 12:24:28,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:28,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:28,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 12:24:28,055 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:24:28,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:28,055 INFO L85 PathProgramCache]: Analyzing trace with hash -987113518, now seen corresponding path program 1 times [2022-11-16 12:24:28,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:28,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862902157] [2022-11-16 12:24:28,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:28,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:28,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:24:28,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:24:28,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862902157] [2022-11-16 12:24:28,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862902157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:24:28,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:24:28,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:24:28,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679808704] [2022-11-16 12:24:28,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:28,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:24:28,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:24:28,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:24:28,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:24:28,203 INFO L87 Difference]: Start difference. First operand 21634 states and 29163 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:37,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:37,389 INFO L93 Difference]: Finished difference Result 33188 states and 44934 transitions. [2022-11-16 12:24:37,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:24:37,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-16 12:24:37,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:37,414 INFO L225 Difference]: With dead ends: 33188 [2022-11-16 12:24:37,414 INFO L226 Difference]: Without dead ends: 23710 [2022-11-16 12:24:37,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:24:37,426 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 941 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:37,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 1118 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:24:37,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23710 states. [2022-11-16 12:24:46,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23710 to 21538. [2022-11-16 12:24:46,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21538 states, 21537 states have (on average 1.3466592375911222) internal successors, (29003), 21537 states have internal predecessors, (29003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21538 states to 21538 states and 29003 transitions. [2022-11-16 12:24:46,185 INFO L78 Accepts]: Start accepts. Automaton has 21538 states and 29003 transitions. Word has length 77 [2022-11-16 12:24:46,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:46,185 INFO L495 AbstractCegarLoop]: Abstraction has 21538 states and 29003 transitions. [2022-11-16 12:24:46,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:46,186 INFO L276 IsEmpty]: Start isEmpty. Operand 21538 states and 29003 transitions. [2022-11-16 12:24:46,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:24:46,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:46,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:46,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 12:24:46,190 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:24:46,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:46,191 INFO L85 PathProgramCache]: Analyzing trace with hash -545955295, now seen corresponding path program 1 times [2022-11-16 12:24:46,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:46,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763135631] [2022-11-16 12:24:46,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:46,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:24:46,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:24:46,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763135631] [2022-11-16 12:24:46,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763135631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:24:46,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:24:46,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:24:46,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617592514] [2022-11-16 12:24:46,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:46,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:46,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:24:46,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:46,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:24:46,313 INFO L87 Difference]: Start difference. First operand 21538 states and 29003 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:58,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:58,919 INFO L93 Difference]: Finished difference Result 26215 states and 35194 transitions. [2022-11-16 12:24:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:24:58,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 12:24:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:58,950 INFO L225 Difference]: With dead ends: 26215 [2022-11-16 12:24:58,950 INFO L226 Difference]: Without dead ends: 25047 [2022-11-16 12:24:58,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:24:58,956 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 2024 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2024 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:58,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2024 Valid, 650 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:24:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25047 states. [2022-11-16 12:25:08,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25047 to 21537. [2022-11-16 12:25:08,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21537 states, 21536 states have (on average 1.3465824665676078) internal successors, (29000), 21536 states have internal predecessors, (29000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:08,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21537 states to 21537 states and 29000 transitions. [2022-11-16 12:25:08,198 INFO L78 Accepts]: Start accepts. Automaton has 21537 states and 29000 transitions. Word has length 78 [2022-11-16 12:25:08,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:08,198 INFO L495 AbstractCegarLoop]: Abstraction has 21537 states and 29000 transitions. [2022-11-16 12:25:08,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:08,198 INFO L276 IsEmpty]: Start isEmpty. Operand 21537 states and 29000 transitions. [2022-11-16 12:25:08,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:25:08,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:08,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:08,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 12:25:08,201 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:25:08,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:08,202 INFO L85 PathProgramCache]: Analyzing trace with hash 482646687, now seen corresponding path program 1 times [2022-11-16 12:25:08,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:08,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977102706] [2022-11-16 12:25:08,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:08,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:08,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:08,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977102706] [2022-11-16 12:25:08,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977102706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:08,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:08,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:25:08,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526185952] [2022-11-16 12:25:08,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:08,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:08,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:08,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:08,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:25:08,331 INFO L87 Difference]: Start difference. First operand 21537 states and 29000 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:20,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:20,985 INFO L93 Difference]: Finished difference Result 26814 states and 35979 transitions. [2022-11-16 12:25:20,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:25:20,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 12:25:20,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:21,014 INFO L225 Difference]: With dead ends: 26814 [2022-11-16 12:25:21,014 INFO L226 Difference]: Without dead ends: 25353 [2022-11-16 12:25:21,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:25:21,021 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 2019 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:21,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2019 Valid, 648 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:25:21,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25353 states. [2022-11-16 12:25:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25353 to 21536. [2022-11-16 12:25:30,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21536 states, 21535 states have (on average 1.3465056884142095) internal successors, (28997), 21535 states have internal predecessors, (28997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21536 states to 21536 states and 28997 transitions. [2022-11-16 12:25:30,662 INFO L78 Accepts]: Start accepts. Automaton has 21536 states and 28997 transitions. Word has length 78 [2022-11-16 12:25:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:30,662 INFO L495 AbstractCegarLoop]: Abstraction has 21536 states and 28997 transitions. [2022-11-16 12:25:30,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 21536 states and 28997 transitions. [2022-11-16 12:25:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 12:25:30,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:30,666 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 12:25:30,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 12:25:30,666 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:25:30,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:30,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1613016119, now seen corresponding path program 1 times [2022-11-16 12:25:30,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:30,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352394072] [2022-11-16 12:25:30,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:30,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:30,907 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:25:30,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:30,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352394072] [2022-11-16 12:25:30,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352394072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:30,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:30,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:25:30,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272902604] [2022-11-16 12:25:30,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:30,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:25:30,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:30,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:25:30,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:25:30,910 INFO L87 Difference]: Start difference. First operand 21536 states and 28997 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:59,223 INFO L93 Difference]: Finished difference Result 71853 states and 96642 transitions. [2022-11-16 12:25:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:25:59,224 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-16 12:25:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:59,300 INFO L225 Difference]: With dead ends: 71853 [2022-11-16 12:25:59,300 INFO L226 Difference]: Without dead ends: 56187 [2022-11-16 12:25:59,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:25:59,317 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 2769 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2769 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:59,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2769 Valid, 1180 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:25:59,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56187 states.