./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc --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 d8e58e4dd7f21a353342bc0a492b99ed688619f4c3decc3151bb6acbb6daeee1 --- 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-5e519f3 [2022-11-02 20:41:20,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:41:20,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:41:20,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:41:20,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:41:20,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:41:20,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:41:20,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:41:20,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:41:20,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:41:20,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:41:20,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:41:20,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:41:20,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:41:20,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:41:20,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:41:20,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:41:20,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:41:20,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:41:20,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:41:20,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:41:20,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:41:20,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:41:20,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:41:20,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:41:20,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:41:20,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:41:20,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:41:20,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:41:20,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:41:20,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:41:20,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:41:20,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:41:20,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:41:20,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:41:20,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:41:20,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:41:20,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:41:20,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:41:20,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:41:20,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:41:20,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:41:20,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:41:20,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:41:20,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:41:20,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:41:20,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:41:20,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:41:20,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:41:20,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:41:20,380 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:41:20,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:41:20,382 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:41:20,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:41:20,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:41:20,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:41:20,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:41:20,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:41:20,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:41:20,383 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:41:20,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:41:20,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:41:20,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:41:20,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:41:20,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:41:20,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:41:20,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:41:20,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:41:20,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:41:20,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:41:20,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:41:20,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:41:20,387 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:41:20,388 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:41:20,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:41:20,388 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_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8e58e4dd7f21a353342bc0a492b99ed688619f4c3decc3151bb6acbb6daeee1 [2022-11-02 20:41:20,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:41:20,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:41:20,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:41:20,742 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:41:20,743 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:41:20,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2022-11-02 20:41:20,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/data/1e631ead7/24bea5f51069473987b5f37a032de7ff/FLAG28654347e [2022-11-02 20:41:21,638 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:41:21,639 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2022-11-02 20:41:21,696 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/data/1e631ead7/24bea5f51069473987b5f37a032de7ff/FLAG28654347e [2022-11-02 20:41:22,132 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/data/1e631ead7/24bea5f51069473987b5f37a032de7ff [2022-11-02 20:41:22,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:41:22,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:41:22,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:41:22,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:41:22,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:41:22,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:41:22" (1/1) ... [2022-11-02 20:41:22,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b261b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:22, skipping insertion in model container [2022-11-02 20:41:22,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:41:22" (1/1) ... [2022-11-02 20:41:22,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:41:22,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:41:23,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[80190,80203] [2022-11-02 20:41:23,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[115653,115666] [2022-11-02 20:41:23,539 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[133417,133430] [2022-11-02 20:41:23,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[142316,142329] [2022-11-02 20:41:23,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[146749,146762] [2022-11-02 20:41:23,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[151062,151075] [2022-11-02 20:41:23,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[185818,185831] [2022-11-02 20:41:23,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[203409,203422] [2022-11-02 20:41:23,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[212345,212358] [2022-11-02 20:41:23,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[216815,216828] [2022-11-02 20:41:23,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[221165,221178] [2022-11-02 20:41:24,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[240022,240035] [2022-11-02 20:41:24,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[248958,248971] [2022-11-02 20:41:24,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[253428,253441] [2022-11-02 20:41:24,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[257778,257791] [2022-11-02 20:41:24,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[262743,262756] [2022-11-02 20:41:24,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[267102,267115] [2022-11-02 20:41:24,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[271572,271585] [2022-11-02 20:41:24,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[275922,275935] [2022-11-02 20:41:24,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[280508,280521] [2022-11-02 20:41:24,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[285025,285038] [2022-11-02 20:41:24,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[289491,289504] [2022-11-02 20:41:24,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:41:24,305 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:41:24,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[80190,80203] [2022-11-02 20:41:24,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[115653,115666] [2022-11-02 20:41:24,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[133417,133430] [2022-11-02 20:41:24,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[142316,142329] [2022-11-02 20:41:24,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[146749,146762] [2022-11-02 20:41:24,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[151062,151075] [2022-11-02 20:41:25,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[185818,185831] [2022-11-02 20:41:25,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[203409,203422] [2022-11-02 20:41:25,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[212345,212358] [2022-11-02 20:41:25,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[216815,216828] [2022-11-02 20:41:25,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[221165,221178] [2022-11-02 20:41:25,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[240022,240035] [2022-11-02 20:41:25,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[248958,248971] [2022-11-02 20:41:25,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[253428,253441] [2022-11-02 20:41:25,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[257778,257791] [2022-11-02 20:41:25,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[262743,262756] [2022-11-02 20:41:25,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[267102,267115] [2022-11-02 20:41:25,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[271572,271585] [2022-11-02 20:41:25,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[275922,275935] [2022-11-02 20:41:25,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[280508,280521] [2022-11-02 20:41:25,407 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[285025,285038] [2022-11-02 20:41:25,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[289491,289504] [2022-11-02 20:41:25,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:41:25,481 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:41:25,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25 WrapperNode [2022-11-02 20:41:25,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:41:25,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:41:25,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:41:25,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:41:25,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:25,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:25,734 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12420 [2022-11-02 20:41:25,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:41:25,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:41:25,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:41:25,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:41:25,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:25,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:25,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:25,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:25,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:26,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:26,040 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:26,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:26,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:41:26,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:41:26,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:41:26,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:41:26,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (1/1) ... [2022-11-02 20:41:26,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:41:26,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:41:26,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:41:26,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a958156-b04f-4444-b875-1678f7d0d076/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:41:26,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:41:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:41:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:41:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:41:26,778 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:41:26,781 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:41:32,357 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:41:32,393 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:41:32,393 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:41:32,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:32 BoogieIcfgContainer [2022-11-02 20:41:32,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:41:32,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:41:32,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:41:32,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:41:32,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:41:22" (1/3) ... [2022-11-02 20:41:32,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143c1a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:41:32, skipping insertion in model container [2022-11-02 20:41:32,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:25" (2/3) ... [2022-11-02 20:41:32,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143c1a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:41:32, skipping insertion in model container [2022-11-02 20:41:32,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:32" (3/3) ... [2022-11-02 20:41:32,420 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2022-11-02 20:41:32,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:41:32,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-02 20:41:32,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:41:32,573 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;@50634902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:41:32,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-02 20:41:32,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 2541 states, 2518 states have (on average 1.7589356632247817) internal successors, (4429), 2540 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:32,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-02 20:41:32,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:32,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:32,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:32,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:32,644 INFO L85 PathProgramCache]: Analyzing trace with hash -876960142, now seen corresponding path program 1 times [2022-11-02 20:41:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:32,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027976062] [2022-11-02 20:41:32,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:32,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:33,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:33,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027976062] [2022-11-02 20:41:33,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027976062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:33,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:33,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:41:33,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144160142] [2022-11-02 20:41:33,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:33,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:41:33,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:33,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:41:33,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:41:33,620 INFO L87 Difference]: Start difference. First operand has 2541 states, 2518 states have (on average 1.7589356632247817) internal successors, (4429), 2540 states have internal predecessors, (4429), 0 states have call successors, (0), 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 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:36,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:36,096 INFO L93 Difference]: Finished difference Result 3317 states and 5684 transitions. [2022-11-02 20:41:36,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:41:36,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-11-02 20:41:36,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:36,130 INFO L225 Difference]: With dead ends: 3317 [2022-11-02 20:41:36,130 INFO L226 Difference]: Without dead ends: 2045 [2022-11-02 20:41:36,141 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 [2022-11-02 20:41:36,149 INFO L413 NwaCegarLoop]: 1898 mSDtfsCounter, 10291 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10291 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:36,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10291 Valid, 1912 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 20:41:36,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2022-11-02 20:41:36,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2045. [2022-11-02 20:41:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 2023 states have (on average 1.3015323776569452) internal successors, (2633), 2044 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:36,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2633 transitions. [2022-11-02 20:41:36,342 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2633 transitions. Word has length 87 [2022-11-02 20:41:36,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:36,343 INFO L495 AbstractCegarLoop]: Abstraction has 2045 states and 2633 transitions. [2022-11-02 20:41:36,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:36,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2633 transitions. [2022-11-02 20:41:36,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-02 20:41:36,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:36,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:36,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:41:36,355 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:36,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1410328050, now seen corresponding path program 1 times [2022-11-02 20:41:36,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:36,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018526854] [2022-11-02 20:41:36,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:36,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:36,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:36,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:36,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018526854] [2022-11-02 20:41:36,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018526854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:36,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:36,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:41:36,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720865308] [2022-11-02 20:41:36,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:36,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:41:36,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:36,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:41:36,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:41:36,735 INFO L87 Difference]: Start difference. First operand 2045 states and 2633 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:37,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:37,870 INFO L93 Difference]: Finished difference Result 2235 states and 2854 transitions. [2022-11-02 20:41:37,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:41:37,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-11-02 20:41:37,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:37,876 INFO L225 Difference]: With dead ends: 2235 [2022-11-02 20:41:37,876 INFO L226 Difference]: Without dead ends: 1245 [2022-11-02 20:41:37,877 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 [2022-11-02 20:41:37,879 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 4654 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:37,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4654 Valid, 830 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:41:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-11-02 20:41:37,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1245. [2022-11-02 20:41:38,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1223 states have (on average 1.3082583810302535) internal successors, (1600), 1244 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:38,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1600 transitions. [2022-11-02 20:41:38,006 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1600 transitions. Word has length 87 [2022-11-02 20:41:38,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:38,006 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 1600 transitions. [2022-11-02 20:41:38,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:38,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1600 transitions. [2022-11-02 20:41:38,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-02 20:41:38,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:38,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:38,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:41:38,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:38,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:38,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1125625269, now seen corresponding path program 1 times [2022-11-02 20:41:38,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:38,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277969142] [2022-11-02 20:41:38,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:38,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:38,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:38,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277969142] [2022-11-02 20:41:38,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277969142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:38,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:38,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:41:38,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179551743] [2022-11-02 20:41:38,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:38,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:41:38,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:38,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:41:38,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:41:38,235 INFO L87 Difference]: Start difference. First operand 1245 states and 1600 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:39,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:39,023 INFO L93 Difference]: Finished difference Result 1533 states and 1966 transitions. [2022-11-02 20:41:39,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:41:39,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-11-02 20:41:39,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:39,028 INFO L225 Difference]: With dead ends: 1533 [2022-11-02 20:41:39,028 INFO L226 Difference]: Without dead ends: 905 [2022-11-02 20:41:39,029 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 [2022-11-02 20:41:39,030 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 3390 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:39,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 658 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:41:39,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-11-02 20:41:39,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2022-11-02 20:41:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3216308040770102) internal successors, (1167), 904 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:39,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1167 transitions. [2022-11-02 20:41:39,084 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1167 transitions. Word has length 87 [2022-11-02 20:41:39,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:39,085 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1167 transitions. [2022-11-02 20:41:39,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1167 transitions. [2022-11-02 20:41:39,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-02 20:41:39,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:39,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:39,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:41:39,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:39,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:39,089 INFO L85 PathProgramCache]: Analyzing trace with hash -229604869, now seen corresponding path program 1 times [2022-11-02 20:41:39,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:39,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193663039] [2022-11-02 20:41:39,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:39,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:39,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:39,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193663039] [2022-11-02 20:41:39,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193663039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:39,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:39,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:41:39,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310794251] [2022-11-02 20:41:39,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:39,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:41:39,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:39,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:41:39,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:41:39,282 INFO L87 Difference]: Start difference. First operand 905 states and 1167 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:39,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:39,919 INFO L93 Difference]: Finished difference Result 1277 states and 1652 transitions. [2022-11-02 20:41:39,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:41:39,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-11-02 20:41:39,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:39,923 INFO L225 Difference]: With dead ends: 1277 [2022-11-02 20:41:39,923 INFO L226 Difference]: Without dead ends: 798 [2022-11-02 20:41:39,924 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 [2022-11-02 20:41:39,930 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 3032 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3032 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:39,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3032 Valid, 597 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:41:39,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2022-11-02 20:41:40,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2022-11-02 20:41:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 776 states have (on average 1.336340206185567) internal successors, (1037), 797 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:40,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1037 transitions. [2022-11-02 20:41:40,035 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1037 transitions. Word has length 89 [2022-11-02 20:41:40,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:40,036 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1037 transitions. [2022-11-02 20:41:40,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:40,036 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1037 transitions. [2022-11-02 20:41:40,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-02 20:41:40,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:40,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:40,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:41:40,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:40,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:40,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1455647616, now seen corresponding path program 1 times [2022-11-02 20:41:40,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:40,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275240683] [2022-11-02 20:41:40,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:40,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:40,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:40,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:40,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275240683] [2022-11-02 20:41:40,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275240683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:40,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:40,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:41:40,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532464250] [2022-11-02 20:41:40,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:40,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:41:40,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:40,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:41:40,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:41:40,263 INFO L87 Difference]: Start difference. First operand 798 states and 1037 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:40,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:40,757 INFO L93 Difference]: Finished difference Result 1134 states and 1473 transitions. [2022-11-02 20:41:40,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:41:40,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-11-02 20:41:40,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:40,761 INFO L225 Difference]: With dead ends: 1134 [2022-11-02 20:41:40,761 INFO L226 Difference]: Without dead ends: 710 [2022-11-02 20:41:40,762 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 [2022-11-02 20:41:40,763 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 2685 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2685 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:40,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2685 Valid, 557 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:41:40,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-02 20:41:40,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2022-11-02 20:41:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 688 states have (on average 1.3444767441860466) internal successors, (925), 709 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 925 transitions. [2022-11-02 20:41:40,815 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 925 transitions. Word has length 91 [2022-11-02 20:41:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:40,816 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 925 transitions. [2022-11-02 20:41:40,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:40,817 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 925 transitions. [2022-11-02 20:41:40,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-02 20:41:40,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:40,819 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:40,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:41:40,819 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:40,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:40,821 INFO L85 PathProgramCache]: Analyzing trace with hash 591523847, now seen corresponding path program 1 times [2022-11-02 20:41:40,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:40,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743377101] [2022-11-02 20:41:40,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:40,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:41,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:41,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:41,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743377101] [2022-11-02 20:41:41,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743377101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:41,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:41,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:41:41,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593384773] [2022-11-02 20:41:41,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:41,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:41:41,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:41,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:41:41,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:41:41,068 INFO L87 Difference]: Start difference. First operand 710 states and 925 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:41,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:41,742 INFO L93 Difference]: Finished difference Result 1088 states and 1423 transitions. [2022-11-02 20:41:41,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:41:41,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2022-11-02 20:41:41,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:41,746 INFO L225 Difference]: With dead ends: 1088 [2022-11-02 20:41:41,746 INFO L226 Difference]: Without dead ends: 702 [2022-11-02 20:41:41,747 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 [2022-11-02 20:41:41,748 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 2538 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:41,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 482 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:41:41,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-11-02 20:41:41,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 702. [2022-11-02 20:41:41,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3455882352941178) internal successors, (915), 701 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:41,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 915 transitions. [2022-11-02 20:41:41,810 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 915 transitions. Word has length 93 [2022-11-02 20:41:41,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:41,811 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 915 transitions. [2022-11-02 20:41:41,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:41,812 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 915 transitions. [2022-11-02 20:41:41,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-02 20:41:41,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:41,814 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:41,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:41:41,814 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:41,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:41,815 INFO L85 PathProgramCache]: Analyzing trace with hash 328441748, now seen corresponding path program 1 times [2022-11-02 20:41:41,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:41,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511090870] [2022-11-02 20:41:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:41,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:42,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:42,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511090870] [2022-11-02 20:41:42,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511090870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:42,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:42,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:41:42,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741306718] [2022-11-02 20:41:42,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:42,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:41:42,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:42,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:41:42,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:41:42,669 INFO L87 Difference]: Start difference. First operand 702 states and 915 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:43,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:43,920 INFO L93 Difference]: Finished difference Result 1330 states and 1688 transitions. [2022-11-02 20:41:43,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:41:43,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-11-02 20:41:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:43,924 INFO L225 Difference]: With dead ends: 1330 [2022-11-02 20:41:43,924 INFO L226 Difference]: Without dead ends: 951 [2022-11-02 20:41:43,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:41:43,926 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 5220 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5220 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:43,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5220 Valid, 1187 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-02 20:41:43,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-11-02 20:41:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 702. [2022-11-02 20:41:44,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3441176470588236) internal successors, (914), 701 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:44,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 914 transitions. [2022-11-02 20:41:44,003 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 914 transitions. Word has length 95 [2022-11-02 20:41:44,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:44,003 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 914 transitions. [2022-11-02 20:41:44,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:44,004 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 914 transitions. [2022-11-02 20:41:44,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-02 20:41:44,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:44,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:44,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:41:44,006 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:44,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:44,007 INFO L85 PathProgramCache]: Analyzing trace with hash 556118932, now seen corresponding path program 1 times [2022-11-02 20:41:44,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:44,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961315171] [2022-11-02 20:41:44,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:44,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:44,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:44,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961315171] [2022-11-02 20:41:44,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961315171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:44,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:44,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:41:44,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337397580] [2022-11-02 20:41:44,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:44,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:41:44,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:44,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:41:44,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:41:44,685 INFO L87 Difference]: Start difference. First operand 702 states and 914 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:46,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:46,880 INFO L93 Difference]: Finished difference Result 1351 states and 1782 transitions. [2022-11-02 20:41:46,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:41:46,881 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-11-02 20:41:46,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:46,886 INFO L225 Difference]: With dead ends: 1351 [2022-11-02 20:41:46,886 INFO L226 Difference]: Without dead ends: 1262 [2022-11-02 20:41:46,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-11-02 20:41:46,888 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 3732 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2367 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3732 SdHoareTripleChecker+Valid, 3055 SdHoareTripleChecker+Invalid, 2453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:46,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3732 Valid, 3055 Invalid, 2453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2367 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 20:41:46,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-11-02 20:41:46,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 717. [2022-11-02 20:41:46,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 695 states have (on average 1.3453237410071943) internal successors, (935), 716 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:46,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 935 transitions. [2022-11-02 20:41:46,990 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 935 transitions. Word has length 95 [2022-11-02 20:41:46,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:46,991 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 935 transitions. [2022-11-02 20:41:46,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:46,991 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 935 transitions. [2022-11-02 20:41:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-02 20:41:46,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:46,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:46,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:41:46,996 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:46,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:46,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1407707980, now seen corresponding path program 1 times [2022-11-02 20:41:46,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:46,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670239462] [2022-11-02 20:41:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:46,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:47,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:47,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670239462] [2022-11-02 20:41:47,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670239462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:47,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:47,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:41:47,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530444903] [2022-11-02 20:41:47,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:47,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:41:47,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:47,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:41:47,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:41:47,676 INFO L87 Difference]: Start difference. First operand 717 states and 935 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:49,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:49,788 INFO L93 Difference]: Finished difference Result 1382 states and 1814 transitions. [2022-11-02 20:41:49,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:41:49,789 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-11-02 20:41:49,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:49,796 INFO L225 Difference]: With dead ends: 1382 [2022-11-02 20:41:49,796 INFO L226 Difference]: Without dead ends: 1288 [2022-11-02 20:41:49,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-11-02 20:41:49,799 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 5760 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5760 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:49,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5760 Valid, 2832 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2127 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-02 20:41:49,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2022-11-02 20:41:49,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 722. [2022-11-02 20:41:49,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 700 states have (on average 1.3428571428571427) internal successors, (940), 721 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:49,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 940 transitions. [2022-11-02 20:41:49,910 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 940 transitions. Word has length 95 [2022-11-02 20:41:49,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:49,910 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 940 transitions. [2022-11-02 20:41:49,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 940 transitions. [2022-11-02 20:41:49,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-02 20:41:49,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:49,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:49,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:41:49,914 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:49,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:49,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1248781324, now seen corresponding path program 1 times [2022-11-02 20:41:49,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:49,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513970936] [2022-11-02 20:41:49,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:49,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:50,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:50,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513970936] [2022-11-02 20:41:50,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513970936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:50,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:50,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:41:50,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517173582] [2022-11-02 20:41:50,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:50,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:41:50,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:50,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:41:50,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:41:50,569 INFO L87 Difference]: Start difference. First operand 722 states and 940 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:53,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:53,095 INFO L93 Difference]: Finished difference Result 1343 states and 1754 transitions. [2022-11-02 20:41:53,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:41:53,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-11-02 20:41:53,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:53,100 INFO L225 Difference]: With dead ends: 1343 [2022-11-02 20:41:53,100 INFO L226 Difference]: Without dead ends: 1262 [2022-11-02 20:41:53,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-11-02 20:41:53,102 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 4939 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 2963 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4939 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 3158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 2963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:53,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4939 Valid, 3629 Invalid, 3158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 2963 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-02 20:41:53,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-11-02 20:41:53,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 726. [2022-11-02 20:41:53,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 704 states have (on average 1.34375) internal successors, (946), 725 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:53,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 946 transitions. [2022-11-02 20:41:53,222 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 946 transitions. Word has length 95 [2022-11-02 20:41:53,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:53,223 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 946 transitions. [2022-11-02 20:41:53,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:53,223 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 946 transitions. [2022-11-02 20:41:53,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-02 20:41:53,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:53,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:53,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:41:53,226 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:53,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:53,227 INFO L85 PathProgramCache]: Analyzing trace with hash -65064876, now seen corresponding path program 1 times [2022-11-02 20:41:53,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:53,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855138492] [2022-11-02 20:41:53,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:53,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:53,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:53,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855138492] [2022-11-02 20:41:53,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855138492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:53,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:53,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:41:53,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450472978] [2022-11-02 20:41:53,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:53,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:41:53,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:53,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:41:53,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:41:53,935 INFO L87 Difference]: Start difference. First operand 726 states and 946 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:56,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:56,597 INFO L93 Difference]: Finished difference Result 1351 states and 1763 transitions. [2022-11-02 20:41:56,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:41:56,598 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-11-02 20:41:56,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:56,603 INFO L225 Difference]: With dead ends: 1351 [2022-11-02 20:41:56,603 INFO L226 Difference]: Without dead ends: 1270 [2022-11-02 20:41:56,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-11-02 20:41:56,604 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 5359 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 3179 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5359 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 3408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 3179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:56,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5359 Valid, 3957 Invalid, 3408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 3179 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-02 20:41:56,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-11-02 20:41:56,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 742. [2022-11-02 20:41:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 720 states have (on average 1.3444444444444446) internal successors, (968), 741 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:56,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 968 transitions. [2022-11-02 20:41:56,722 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 968 transitions. Word has length 95 [2022-11-02 20:41:56,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:56,723 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 968 transitions. [2022-11-02 20:41:56,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:56,723 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 968 transitions. [2022-11-02 20:41:56,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-02 20:41:56,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:56,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:56,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:41:56,726 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:56,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:56,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1071889132, now seen corresponding path program 1 times [2022-11-02 20:41:56,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:56,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129386847] [2022-11-02 20:41:56,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:56,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:57,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:57,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129386847] [2022-11-02 20:41:57,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129386847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:57,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:57,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:41:57,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386126889] [2022-11-02 20:41:57,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:57,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:41:57,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:57,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:41:57,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:41:57,123 INFO L87 Difference]: Start difference. First operand 742 states and 968 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:58,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:58,922 INFO L93 Difference]: Finished difference Result 1227 states and 1596 transitions. [2022-11-02 20:41:58,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:41:58,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-11-02 20:41:58,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:58,927 INFO L225 Difference]: With dead ends: 1227 [2022-11-02 20:41:58,927 INFO L226 Difference]: Without dead ends: 1221 [2022-11-02 20:41:58,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:41:58,928 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 4951 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:58,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4951 Valid, 2460 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 20:41:58,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2022-11-02 20:41:59,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 742. [2022-11-02 20:41:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 720 states have (on average 1.3430555555555554) internal successors, (967), 741 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 967 transitions. [2022-11-02 20:41:59,035 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 967 transitions. Word has length 95 [2022-11-02 20:41:59,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:59,035 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 967 transitions. [2022-11-02 20:41:59,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:59,036 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 967 transitions. [2022-11-02 20:41:59,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-02 20:41:59,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:59,038 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:59,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:41:59,038 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:41:59,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash -485803098, now seen corresponding path program 1 times [2022-11-02 20:41:59,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:59,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314485434] [2022-11-02 20:41:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:59,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:59,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:59,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:59,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314485434] [2022-11-02 20:41:59,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314485434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:59,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:59,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:41:59,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520573714] [2022-11-02 20:41:59,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:59,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:41:59,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:59,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:41:59,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:41:59,475 INFO L87 Difference]: Start difference. First operand 742 states and 967 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:01,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:01,520 INFO L93 Difference]: Finished difference Result 1445 states and 1920 transitions. [2022-11-02 20:42:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:01,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-11-02 20:42:01,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:01,525 INFO L225 Difference]: With dead ends: 1445 [2022-11-02 20:42:01,526 INFO L226 Difference]: Without dead ends: 1236 [2022-11-02 20:42:01,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:01,527 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 4652 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4652 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:01,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4652 Valid, 3966 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-02 20:42:01,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-11-02 20:42:01,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 702. [2022-11-02 20:42:01,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3411764705882352) internal successors, (912), 701 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:01,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 912 transitions. [2022-11-02 20:42:01,654 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 912 transitions. Word has length 96 [2022-11-02 20:42:01,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:01,654 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 912 transitions. [2022-11-02 20:42:01,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:01,655 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 912 transitions. [2022-11-02 20:42:01,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-02 20:42:01,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:01,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:01,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:42:01,657 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:01,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:01,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1164032538, now seen corresponding path program 1 times [2022-11-02 20:42:01,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:01,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373478427] [2022-11-02 20:42:01,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:01,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:02,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:02,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:02,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373478427] [2022-11-02 20:42:02,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373478427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:02,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:02,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:02,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620974026] [2022-11-02 20:42:02,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:02,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:02,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:02,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:02,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:02,047 INFO L87 Difference]: Start difference. First operand 702 states and 912 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:03,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:03,812 INFO L93 Difference]: Finished difference Result 1254 states and 1642 transitions. [2022-11-02 20:42:03,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:03,812 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-11-02 20:42:03,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:03,817 INFO L225 Difference]: With dead ends: 1254 [2022-11-02 20:42:03,817 INFO L226 Difference]: Without dead ends: 1176 [2022-11-02 20:42:03,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:03,818 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 3844 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3844 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:03,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3844 Valid, 2361 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 20:42:03,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-11-02 20:42:03,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 702. [2022-11-02 20:42:03,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.339705882352941) internal successors, (911), 701 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:03,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 911 transitions. [2022-11-02 20:42:03,931 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 911 transitions. Word has length 96 [2022-11-02 20:42:03,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:03,931 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 911 transitions. [2022-11-02 20:42:03,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:03,932 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 911 transitions. [2022-11-02 20:42:03,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-02 20:42:03,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:03,934 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:03,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:42:03,934 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:03,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:03,935 INFO L85 PathProgramCache]: Analyzing trace with hash -666876154, now seen corresponding path program 1 times [2022-11-02 20:42:03,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:03,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561033998] [2022-11-02 20:42:03,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:03,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:04,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:04,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:04,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561033998] [2022-11-02 20:42:04,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561033998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:04,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:04,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:04,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604131492] [2022-11-02 20:42:04,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:04,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:04,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:04,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:04,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:04,300 INFO L87 Difference]: Start difference. First operand 702 states and 911 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:05,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:05,906 INFO L93 Difference]: Finished difference Result 1254 states and 1640 transitions. [2022-11-02 20:42:05,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:05,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-11-02 20:42:05,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:05,910 INFO L225 Difference]: With dead ends: 1254 [2022-11-02 20:42:05,910 INFO L226 Difference]: Without dead ends: 1176 [2022-11-02 20:42:05,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:05,912 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 2638 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2638 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:05,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2638 Valid, 2364 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:42:05,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-11-02 20:42:06,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 702. [2022-11-02 20:42:06,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.338235294117647) internal successors, (910), 701 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:06,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 910 transitions. [2022-11-02 20:42:06,119 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 910 transitions. Word has length 96 [2022-11-02 20:42:06,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:06,120 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 910 transitions. [2022-11-02 20:42:06,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:06,120 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 910 transitions. [2022-11-02 20:42:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-02 20:42:06,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:06,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:06,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:42:06,123 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:06,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:06,124 INFO L85 PathProgramCache]: Analyzing trace with hash 712350950, now seen corresponding path program 1 times [2022-11-02 20:42:06,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:06,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959372992] [2022-11-02 20:42:06,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:06,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:06,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:06,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:06,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959372992] [2022-11-02 20:42:06,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959372992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:06,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:06,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:06,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057420216] [2022-11-02 20:42:06,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:06,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:06,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:06,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:06,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:06,582 INFO L87 Difference]: Start difference. First operand 702 states and 910 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:08,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:08,185 INFO L93 Difference]: Finished difference Result 1297 states and 1706 transitions. [2022-11-02 20:42:08,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:08,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-11-02 20:42:08,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:08,189 INFO L225 Difference]: With dead ends: 1297 [2022-11-02 20:42:08,190 INFO L226 Difference]: Without dead ends: 1208 [2022-11-02 20:42:08,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:08,191 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2644 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2644 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:08,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2644 Valid, 2490 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:42:08,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-11-02 20:42:08,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 702. [2022-11-02 20:42:08,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3367647058823529) internal successors, (909), 701 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:08,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 909 transitions. [2022-11-02 20:42:08,343 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 909 transitions. Word has length 96 [2022-11-02 20:42:08,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:08,344 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 909 transitions. [2022-11-02 20:42:08,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:08,344 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 909 transitions. [2022-11-02 20:42:08,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-02 20:42:08,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:08,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:08,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:42:08,346 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:08,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:08,347 INFO L85 PathProgramCache]: Analyzing trace with hash -970429882, now seen corresponding path program 1 times [2022-11-02 20:42:08,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:08,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404865253] [2022-11-02 20:42:08,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:08,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:08,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:08,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404865253] [2022-11-02 20:42:08,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404865253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:08,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:08,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:08,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132373472] [2022-11-02 20:42:08,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:08,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:08,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:08,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:08,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:08,696 INFO L87 Difference]: Start difference. First operand 702 states and 909 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:10,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:10,325 INFO L93 Difference]: Finished difference Result 1293 states and 1702 transitions. [2022-11-02 20:42:10,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:10,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-11-02 20:42:10,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:10,328 INFO L225 Difference]: With dead ends: 1293 [2022-11-02 20:42:10,328 INFO L226 Difference]: Without dead ends: 1208 [2022-11-02 20:42:10,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:10,330 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3905 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3905 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:10,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3905 Valid, 2496 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:42:10,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-11-02 20:42:10,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 702. [2022-11-02 20:42:10,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3352941176470587) internal successors, (908), 701 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:10,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 908 transitions. [2022-11-02 20:42:10,455 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 908 transitions. Word has length 96 [2022-11-02 20:42:10,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:10,455 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 908 transitions. [2022-11-02 20:42:10,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:10,456 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 908 transitions. [2022-11-02 20:42:10,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:10,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:10,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:10,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:42:10,458 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:10,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:10,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1887012889, now seen corresponding path program 1 times [2022-11-02 20:42:10,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:10,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418646816] [2022-11-02 20:42:10,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:10,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:11,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:11,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418646816] [2022-11-02 20:42:11,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418646816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:11,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:11,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:42:11,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109925282] [2022-11-02 20:42:11,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:11,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:42:11,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:11,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:42:11,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:42:11,100 INFO L87 Difference]: Start difference. First operand 702 states and 908 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:14,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:14,092 INFO L93 Difference]: Finished difference Result 1667 states and 2226 transitions. [2022-11-02 20:42:14,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:42:14,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:14,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:14,095 INFO L225 Difference]: With dead ends: 1667 [2022-11-02 20:42:14,095 INFO L226 Difference]: Without dead ends: 1428 [2022-11-02 20:42:14,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2022-11-02 20:42:14,096 INFO L413 NwaCegarLoop]: 994 mSDtfsCounter, 5124 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 3851 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5124 SdHoareTripleChecker+Valid, 5355 SdHoareTripleChecker+Invalid, 3900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:14,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5124 Valid, 5355 Invalid, 3900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3851 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-02 20:42:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-11-02 20:42:14,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 702. [2022-11-02 20:42:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3338235294117646) internal successors, (907), 701 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:14,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 907 transitions. [2022-11-02 20:42:14,236 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 907 transitions. Word has length 97 [2022-11-02 20:42:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:14,237 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 907 transitions. [2022-11-02 20:42:14,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:14,237 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 907 transitions. [2022-11-02 20:42:14,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:14,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:14,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:14,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:42:14,239 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:14,240 INFO L85 PathProgramCache]: Analyzing trace with hash -2083812519, now seen corresponding path program 1 times [2022-11-02 20:42:14,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:14,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343831314] [2022-11-02 20:42:14,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:14,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:14,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:14,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:14,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343831314] [2022-11-02 20:42:14,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343831314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:14,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:14,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:14,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263325650] [2022-11-02 20:42:14,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:14,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:14,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:14,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:14,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:14,614 INFO L87 Difference]: Start difference. First operand 702 states and 907 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:16,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:16,411 INFO L93 Difference]: Finished difference Result 1182 states and 1528 transitions. [2022-11-02 20:42:16,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:16,412 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:16,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:16,414 INFO L225 Difference]: With dead ends: 1182 [2022-11-02 20:42:16,414 INFO L226 Difference]: Without dead ends: 1176 [2022-11-02 20:42:16,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:16,415 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 3772 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3772 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:16,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3772 Valid, 2424 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:42:16,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-11-02 20:42:16,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 702. [2022-11-02 20:42:16,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3323529411764705) internal successors, (906), 701 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:16,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 906 transitions. [2022-11-02 20:42:16,603 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 906 transitions. Word has length 97 [2022-11-02 20:42:16,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:16,604 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 906 transitions. [2022-11-02 20:42:16,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:16,604 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 906 transitions. [2022-11-02 20:42:16,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:16,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:16,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:16,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:42:16,607 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:16,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:16,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1112735129, now seen corresponding path program 1 times [2022-11-02 20:42:16,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:16,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084409232] [2022-11-02 20:42:16,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:16,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:16,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:16,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:16,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084409232] [2022-11-02 20:42:16,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084409232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:16,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:16,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:16,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98741696] [2022-11-02 20:42:16,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:16,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:17,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:17,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:17,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:17,001 INFO L87 Difference]: Start difference. First operand 702 states and 906 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:18,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:18,849 INFO L93 Difference]: Finished difference Result 1227 states and 1595 transitions. [2022-11-02 20:42:18,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:18,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:18,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:18,855 INFO L225 Difference]: With dead ends: 1227 [2022-11-02 20:42:18,855 INFO L226 Difference]: Without dead ends: 1208 [2022-11-02 20:42:18,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:18,856 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3936 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3936 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:18,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3936 Valid, 2483 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:42:18,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-11-02 20:42:19,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 702. [2022-11-02 20:42:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3308823529411764) internal successors, (905), 701 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:19,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 905 transitions. [2022-11-02 20:42:19,060 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 905 transitions. Word has length 97 [2022-11-02 20:42:19,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:19,061 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 905 transitions. [2022-11-02 20:42:19,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 905 transitions. [2022-11-02 20:42:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:19,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:19,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:19,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:42:19,064 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:19,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:19,065 INFO L85 PathProgramCache]: Analyzing trace with hash 759964249, now seen corresponding path program 1 times [2022-11-02 20:42:19,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:19,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83584416] [2022-11-02 20:42:19,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:19,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:19,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:19,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:19,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83584416] [2022-11-02 20:42:19,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83584416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:19,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:19,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:19,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891814719] [2022-11-02 20:42:19,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:19,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:19,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:19,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:19,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:19,595 INFO L87 Difference]: Start difference. First operand 702 states and 905 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:21,541 INFO L93 Difference]: Finished difference Result 1182 states and 1525 transitions. [2022-11-02 20:42:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:21,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:21,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:21,548 INFO L225 Difference]: With dead ends: 1182 [2022-11-02 20:42:21,548 INFO L226 Difference]: Without dead ends: 1176 [2022-11-02 20:42:21,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:21,550 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 3715 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3715 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:21,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3715 Valid, 2482 Invalid, 2032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 20:42:21,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-11-02 20:42:21,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 702. [2022-11-02 20:42:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3294117647058823) internal successors, (904), 701 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:21,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 904 transitions. [2022-11-02 20:42:21,727 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 904 transitions. Word has length 97 [2022-11-02 20:42:21,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:21,727 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 904 transitions. [2022-11-02 20:42:21,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:21,728 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 904 transitions. [2022-11-02 20:42:21,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:21,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:21,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:21,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:42:21,730 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:21,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:21,730 INFO L85 PathProgramCache]: Analyzing trace with hash -639309095, now seen corresponding path program 1 times [2022-11-02 20:42:21,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:21,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883510967] [2022-11-02 20:42:21,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:21,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:22,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:22,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:22,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883510967] [2022-11-02 20:42:22,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883510967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:22,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:22,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:22,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464712727] [2022-11-02 20:42:22,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:22,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:22,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:22,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:22,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:22,102 INFO L87 Difference]: Start difference. First operand 702 states and 904 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:23,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:23,898 INFO L93 Difference]: Finished difference Result 1297 states and 1697 transitions. [2022-11-02 20:42:23,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:23,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:23,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:23,905 INFO L225 Difference]: With dead ends: 1297 [2022-11-02 20:42:23,905 INFO L226 Difference]: Without dead ends: 1208 [2022-11-02 20:42:23,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:23,906 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3883 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3883 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:23,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3883 Valid, 2493 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:42:23,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-11-02 20:42:24,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 702. [2022-11-02 20:42:24,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3279411764705882) internal successors, (903), 701 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 903 transitions. [2022-11-02 20:42:24,105 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 903 transitions. Word has length 97 [2022-11-02 20:42:24,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:24,105 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 903 transitions. [2022-11-02 20:42:24,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:24,106 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 903 transitions. [2022-11-02 20:42:24,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:24,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:24,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:24,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 20:42:24,108 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:24,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:24,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1525936807, now seen corresponding path program 1 times [2022-11-02 20:42:24,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:24,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830347506] [2022-11-02 20:42:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:24,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:24,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:24,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830347506] [2022-11-02 20:42:24,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830347506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:24,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:24,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:24,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68418206] [2022-11-02 20:42:24,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:24,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:24,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:24,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:24,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:24,456 INFO L87 Difference]: Start difference. First operand 702 states and 903 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:26,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:26,248 INFO L93 Difference]: Finished difference Result 1251 states and 1628 transitions. [2022-11-02 20:42:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:26,249 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:26,253 INFO L225 Difference]: With dead ends: 1251 [2022-11-02 20:42:26,253 INFO L226 Difference]: Without dead ends: 1175 [2022-11-02 20:42:26,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:26,255 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 3670 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3670 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:26,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3670 Valid, 2521 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:42:26,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-11-02 20:42:26,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 701. [2022-11-02 20:42:26,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3269513991163475) internal successors, (901), 700 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:26,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 901 transitions. [2022-11-02 20:42:26,421 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 901 transitions. Word has length 97 [2022-11-02 20:42:26,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:26,422 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 901 transitions. [2022-11-02 20:42:26,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 901 transitions. [2022-11-02 20:42:26,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:26,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:26,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:26,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 20:42:26,424 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:26,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:26,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1939604839, now seen corresponding path program 1 times [2022-11-02 20:42:26,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:26,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831116193] [2022-11-02 20:42:26,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:26,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:26,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:26,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831116193] [2022-11-02 20:42:26,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831116193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:26,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:26,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:26,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532744967] [2022-11-02 20:42:26,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:26,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:26,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:26,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:26,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:26,781 INFO L87 Difference]: Start difference. First operand 701 states and 901 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:28,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:28,556 INFO L93 Difference]: Finished difference Result 1290 states and 1688 transitions. [2022-11-02 20:42:28,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:28,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:28,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:28,562 INFO L225 Difference]: With dead ends: 1290 [2022-11-02 20:42:28,562 INFO L226 Difference]: Without dead ends: 1206 [2022-11-02 20:42:28,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:28,564 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 4340 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:28,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4340 Valid, 2497 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:42:28,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-11-02 20:42:28,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-11-02 20:42:28,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3254786450662739) internal successors, (900), 700 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 900 transitions. [2022-11-02 20:42:28,716 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 900 transitions. Word has length 97 [2022-11-02 20:42:28,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:28,716 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 900 transitions. [2022-11-02 20:42:28,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:28,716 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 900 transitions. [2022-11-02 20:42:28,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:28,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:28,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:28,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 20:42:28,718 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:28,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:28,719 INFO L85 PathProgramCache]: Analyzing trace with hash -796530713, now seen corresponding path program 1 times [2022-11-02 20:42:28,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:28,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602715843] [2022-11-02 20:42:28,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:28,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:29,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:29,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:29,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602715843] [2022-11-02 20:42:29,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602715843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:29,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:29,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:29,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83405861] [2022-11-02 20:42:29,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:29,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:29,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:29,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:29,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:29,096 INFO L87 Difference]: Start difference. First operand 701 states and 900 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:31,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:31,237 INFO L93 Difference]: Finished difference Result 1363 states and 1803 transitions. [2022-11-02 20:42:31,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:31,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:31,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:31,241 INFO L225 Difference]: With dead ends: 1363 [2022-11-02 20:42:31,241 INFO L226 Difference]: Without dead ends: 1230 [2022-11-02 20:42:31,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:42:31,242 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 4062 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4062 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:31,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4062 Valid, 3627 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-02 20:42:31,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-11-02 20:42:31,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 701. [2022-11-02 20:42:31,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3240058910162003) internal successors, (899), 700 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:31,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 899 transitions. [2022-11-02 20:42:31,376 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 899 transitions. Word has length 97 [2022-11-02 20:42:31,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:31,376 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 899 transitions. [2022-11-02 20:42:31,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:31,377 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 899 transitions. [2022-11-02 20:42:31,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:31,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:31,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:31,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 20:42:31,378 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:31,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:31,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1267448231, now seen corresponding path program 1 times [2022-11-02 20:42:31,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:31,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338907939] [2022-11-02 20:42:31,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:31,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:31,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:31,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:31,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338907939] [2022-11-02 20:42:31,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338907939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:31,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:31,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:31,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783464339] [2022-11-02 20:42:31,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:31,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:31,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:31,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:31,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:31,728 INFO L87 Difference]: Start difference. First operand 701 states and 899 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:33,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:33,493 INFO L93 Difference]: Finished difference Result 1295 states and 1691 transitions. [2022-11-02 20:42:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:33,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:33,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:33,496 INFO L225 Difference]: With dead ends: 1295 [2022-11-02 20:42:33,496 INFO L226 Difference]: Without dead ends: 1206 [2022-11-02 20:42:33,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:33,499 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2587 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:33,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2587 Valid, 2491 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:42:33,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-11-02 20:42:33,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-11-02 20:42:33,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3225331369661266) internal successors, (898), 700 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:33,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 898 transitions. [2022-11-02 20:42:33,668 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 898 transitions. Word has length 97 [2022-11-02 20:42:33,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:33,669 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 898 transitions. [2022-11-02 20:42:33,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:33,669 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 898 transitions. [2022-11-02 20:42:33,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:33,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:33,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:33,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 20:42:33,671 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:33,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:33,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1063692153, now seen corresponding path program 1 times [2022-11-02 20:42:33,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:33,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375388383] [2022-11-02 20:42:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:33,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:34,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:34,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375388383] [2022-11-02 20:42:34,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375388383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:34,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:34,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:34,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481885891] [2022-11-02 20:42:34,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:34,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:34,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:34,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:34,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:34,022 INFO L87 Difference]: Start difference. First operand 701 states and 898 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:35,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:35,710 INFO L93 Difference]: Finished difference Result 1300 states and 1694 transitions. [2022-11-02 20:42:35,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:35,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:35,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:35,713 INFO L225 Difference]: With dead ends: 1300 [2022-11-02 20:42:35,713 INFO L226 Difference]: Without dead ends: 1206 [2022-11-02 20:42:35,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:35,715 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4371 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4371 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:35,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4371 Valid, 2295 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:42:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-11-02 20:42:35,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-11-02 20:42:35,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.321060382916053) internal successors, (897), 700 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:35,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 897 transitions. [2022-11-02 20:42:35,881 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 897 transitions. Word has length 97 [2022-11-02 20:42:35,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:35,883 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 897 transitions. [2022-11-02 20:42:35,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:35,883 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 897 transitions. [2022-11-02 20:42:35,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:35,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:35,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:35,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-02 20:42:35,885 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:35,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:35,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1222618809, now seen corresponding path program 1 times [2022-11-02 20:42:35,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:35,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339187756] [2022-11-02 20:42:35,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:35,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:36,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:36,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:36,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339187756] [2022-11-02 20:42:36,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339187756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:36,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:36,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95917627] [2022-11-02 20:42:36,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:36,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:36,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:36,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:36,225 INFO L87 Difference]: Start difference. First operand 701 states and 897 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:38,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:38,158 INFO L93 Difference]: Finished difference Result 1256 states and 1628 transitions. [2022-11-02 20:42:38,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:38,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:38,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:38,161 INFO L225 Difference]: With dead ends: 1256 [2022-11-02 20:42:38,161 INFO L226 Difference]: Without dead ends: 1175 [2022-11-02 20:42:38,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:38,162 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 3555 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3555 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:38,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3555 Valid, 2649 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:42:38,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-11-02 20:42:38,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 701. [2022-11-02 20:42:38,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3195876288659794) internal successors, (896), 700 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:38,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 896 transitions. [2022-11-02 20:42:38,306 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 896 transitions. Word has length 97 [2022-11-02 20:42:38,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:38,306 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 896 transitions. [2022-11-02 20:42:38,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 896 transitions. [2022-11-02 20:42:38,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:42:38,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:38,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:38,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-02 20:42:38,307 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:38,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:38,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1888632039, now seen corresponding path program 1 times [2022-11-02 20:42:38,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:38,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212098169] [2022-11-02 20:42:38,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:38,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:38,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:38,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:38,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212098169] [2022-11-02 20:42:38,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212098169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:38,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:38,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:38,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346386768] [2022-11-02 20:42:38,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:38,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:38,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:38,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:38,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:38,653 INFO L87 Difference]: Start difference. First operand 701 states and 896 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:40,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:40,601 INFO L93 Difference]: Finished difference Result 1256 states and 1627 transitions. [2022-11-02 20:42:40,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:40,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-02 20:42:40,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:40,604 INFO L225 Difference]: With dead ends: 1256 [2022-11-02 20:42:40,604 INFO L226 Difference]: Without dead ends: 1175 [2022-11-02 20:42:40,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:40,606 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 4637 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4637 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:40,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4637 Valid, 2646 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1906 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:42:40,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-11-02 20:42:40,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 701. [2022-11-02 20:42:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3181148748159057) internal successors, (895), 700 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:40,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 895 transitions. [2022-11-02 20:42:40,775 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 895 transitions. Word has length 97 [2022-11-02 20:42:40,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:40,775 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 895 transitions. [2022-11-02 20:42:40,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:40,775 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 895 transitions. [2022-11-02 20:42:40,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:42:40,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:40,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:40,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-02 20:42:40,776 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:40,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash -983974751, now seen corresponding path program 1 times [2022-11-02 20:42:40,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:40,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109599950] [2022-11-02 20:42:40,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:40,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:41,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:41,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:41,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109599950] [2022-11-02 20:42:41,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109599950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:41,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:41,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:41,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779279300] [2022-11-02 20:42:41,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:41,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:41,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:41,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:41,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:41,121 INFO L87 Difference]: Start difference. First operand 701 states and 895 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:43,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:43,017 INFO L93 Difference]: Finished difference Result 1253 states and 1622 transitions. [2022-11-02 20:42:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:43,017 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:42:43,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:43,020 INFO L225 Difference]: With dead ends: 1253 [2022-11-02 20:42:43,020 INFO L226 Difference]: Without dead ends: 1175 [2022-11-02 20:42:43,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:43,025 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 2472 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:43,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 2653 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:42:43,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-11-02 20:42:43,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 701. [2022-11-02 20:42:43,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.316642120765832) internal successors, (894), 700 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:43,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 894 transitions. [2022-11-02 20:42:43,203 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 894 transitions. Word has length 98 [2022-11-02 20:42:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:43,203 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 894 transitions. [2022-11-02 20:42:43,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:43,204 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 894 transitions. [2022-11-02 20:42:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:42:43,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:43,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:43,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-02 20:42:43,205 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:43,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:43,205 INFO L85 PathProgramCache]: Analyzing trace with hash -594891711, now seen corresponding path program 1 times [2022-11-02 20:42:43,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:43,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092583151] [2022-11-02 20:42:43,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:43,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:43,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:43,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:43,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092583151] [2022-11-02 20:42:43,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092583151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:43,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:43,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:43,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869431936] [2022-11-02 20:42:43,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:43,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:43,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:43,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:43,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:43,513 INFO L87 Difference]: Start difference. First operand 701 states and 894 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:45,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:45,309 INFO L93 Difference]: Finished difference Result 1295 states and 1680 transitions. [2022-11-02 20:42:45,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:45,310 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:42:45,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:45,312 INFO L225 Difference]: With dead ends: 1295 [2022-11-02 20:42:45,312 INFO L226 Difference]: Without dead ends: 1206 [2022-11-02 20:42:45,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:45,313 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3865 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3865 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:45,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3865 Valid, 2490 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:42:45,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-11-02 20:42:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-11-02 20:42:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3151693667157585) internal successors, (893), 700 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 893 transitions. [2022-11-02 20:42:45,465 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 893 transitions. Word has length 98 [2022-11-02 20:42:45,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:45,465 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 893 transitions. [2022-11-02 20:42:45,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 893 transitions. [2022-11-02 20:42:45,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:42:45,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:45,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:45,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-02 20:42:45,467 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:45,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:45,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1325336959, now seen corresponding path program 1 times [2022-11-02 20:42:45,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:45,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744553148] [2022-11-02 20:42:45,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:45,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:45,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:45,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:45,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744553148] [2022-11-02 20:42:45,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744553148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:45,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:45,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:45,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917330442] [2022-11-02 20:42:45,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:45,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:45,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:45,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:45,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:45,782 INFO L87 Difference]: Start difference. First operand 701 states and 893 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:47,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:47,565 INFO L93 Difference]: Finished difference Result 1291 states and 1676 transitions. [2022-11-02 20:42:47,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:47,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:42:47,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:47,568 INFO L225 Difference]: With dead ends: 1291 [2022-11-02 20:42:47,568 INFO L226 Difference]: Without dead ends: 1206 [2022-11-02 20:42:47,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:47,570 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3831 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3831 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:47,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3831 Valid, 2496 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:42:47,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-11-02 20:42:47,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-11-02 20:42:47,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3136966126656848) internal successors, (892), 700 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 892 transitions. [2022-11-02 20:42:47,746 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 892 transitions. Word has length 98 [2022-11-02 20:42:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:47,746 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 892 transitions. [2022-11-02 20:42:47,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:47,746 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 892 transitions. [2022-11-02 20:42:47,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:42:47,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:47,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:47,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-02 20:42:47,748 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:47,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:47,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1660924641, now seen corresponding path program 1 times [2022-11-02 20:42:47,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:47,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771267755] [2022-11-02 20:42:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:47,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:48,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:48,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771267755] [2022-11-02 20:42:48,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771267755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:48,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:48,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:48,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638906227] [2022-11-02 20:42:48,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:48,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:48,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:48,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:48,101 INFO L87 Difference]: Start difference. First operand 701 states and 892 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:50,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:50,184 INFO L93 Difference]: Finished difference Result 1377 states and 1803 transitions. [2022-11-02 20:42:50,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:50,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:42:50,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:50,187 INFO L225 Difference]: With dead ends: 1377 [2022-11-02 20:42:50,187 INFO L226 Difference]: Without dead ends: 1230 [2022-11-02 20:42:50,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:42:50,189 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 4275 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4275 SdHoareTripleChecker+Valid, 3463 SdHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:50,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4275 Valid, 3463 Invalid, 2318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 20:42:50,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-11-02 20:42:50,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 701. [2022-11-02 20:42:50,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3122238586156112) internal successors, (891), 700 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:50,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 891 transitions. [2022-11-02 20:42:50,353 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 891 transitions. Word has length 98 [2022-11-02 20:42:50,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:50,353 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 891 transitions. [2022-11-02 20:42:50,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:50,353 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 891 transitions. [2022-11-02 20:42:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:42:50,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:50,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:50,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-02 20:42:50,355 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:50,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash -743182655, now seen corresponding path program 1 times [2022-11-02 20:42:50,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:50,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961389102] [2022-11-02 20:42:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:50,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:50,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:50,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961389102] [2022-11-02 20:42:50,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961389102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:50,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:50,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:50,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065281011] [2022-11-02 20:42:50,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:50,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:50,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:50,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:50,645 INFO L87 Difference]: Start difference. First operand 701 states and 891 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:52,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:52,464 INFO L93 Difference]: Finished difference Result 1291 states and 1673 transitions. [2022-11-02 20:42:52,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:52,464 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:42:52,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:52,466 INFO L225 Difference]: With dead ends: 1291 [2022-11-02 20:42:52,466 INFO L226 Difference]: Without dead ends: 1206 [2022-11-02 20:42:52,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:52,467 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3847 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3847 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:52,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3847 Valid, 2493 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:42:52,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-11-02 20:42:52,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-11-02 20:42:52,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3107511045655376) internal successors, (890), 700 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:52,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 890 transitions. [2022-11-02 20:42:52,641 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 890 transitions. Word has length 98 [2022-11-02 20:42:52,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:52,641 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 890 transitions. [2022-11-02 20:42:52,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:52,642 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 890 transitions. [2022-11-02 20:42:52,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:42:52,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:52,643 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:52,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-02 20:42:52,643 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:52,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1926953537, now seen corresponding path program 1 times [2022-11-02 20:42:52,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:52,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768384723] [2022-11-02 20:42:52,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:52,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:53,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:53,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:53,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768384723] [2022-11-02 20:42:53,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768384723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:53,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:53,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:53,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213061327] [2022-11-02 20:42:53,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:53,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:53,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:53,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:53,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:53,059 INFO L87 Difference]: Start difference. First operand 701 states and 890 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:55,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:55,314 INFO L93 Difference]: Finished difference Result 1251 states and 1615 transitions. [2022-11-02 20:42:55,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:42:55,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:42:55,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:55,317 INFO L225 Difference]: With dead ends: 1251 [2022-11-02 20:42:55,317 INFO L226 Difference]: Without dead ends: 1175 [2022-11-02 20:42:55,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:42:55,318 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 4052 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4052 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:55,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4052 Valid, 3382 Invalid, 2526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-02 20:42:55,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-11-02 20:42:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 701. [2022-11-02 20:42:55,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.309278350515464) internal successors, (889), 700 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:55,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 889 transitions. [2022-11-02 20:42:55,532 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 889 transitions. Word has length 98 [2022-11-02 20:42:55,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:55,533 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 889 transitions. [2022-11-02 20:42:55,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 889 transitions. [2022-11-02 20:42:55,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:42:55,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:55,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:55,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-02 20:42:55,535 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:42:55,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:55,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1181810303, now seen corresponding path program 1 times [2022-11-02 20:42:55,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:55,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981175993] [2022-11-02 20:42:55,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:55,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:56,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:56,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981175993] [2022-11-02 20:42:56,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981175993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:56,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:56,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:42:56,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188992736] [2022-11-02 20:42:56,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:56,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:42:56,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:56,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:42:56,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:42:56,171 INFO L87 Difference]: Start difference. First operand 701 states and 889 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:00,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:00,501 INFO L93 Difference]: Finished difference Result 2065 states and 2792 transitions. [2022-11-02 20:43:00,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:43:00,502 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:43:00,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:00,505 INFO L225 Difference]: With dead ends: 2065 [2022-11-02 20:43:00,505 INFO L226 Difference]: Without dead ends: 1918 [2022-11-02 20:43:00,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-02 20:43:00,506 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 7726 mSDsluCounter, 3671 mSDsCounter, 0 mSdLazyCounter, 3257 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7726 SdHoareTripleChecker+Valid, 4693 SdHoareTripleChecker+Invalid, 3817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 3257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:00,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7726 Valid, 4693 Invalid, 3817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 3257 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-02 20:43:00,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2022-11-02 20:43:00,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 706. [2022-11-02 20:43:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3070175438596492) internal successors, (894), 705 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 894 transitions. [2022-11-02 20:43:00,698 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 894 transitions. Word has length 98 [2022-11-02 20:43:00,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:00,698 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 894 transitions. [2022-11-02 20:43:00,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:00,698 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 894 transitions. [2022-11-02 20:43:00,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:43:00,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:00,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:00,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-02 20:43:00,700 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:00,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:00,701 INFO L85 PathProgramCache]: Analyzing trace with hash -218628127, now seen corresponding path program 1 times [2022-11-02 20:43:00,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:00,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096190456] [2022-11-02 20:43:00,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:00,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:01,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:01,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096190456] [2022-11-02 20:43:01,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096190456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:01,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:01,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:01,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368784473] [2022-11-02 20:43:01,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:01,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:01,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:01,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:01,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:01,018 INFO L87 Difference]: Start difference. First operand 706 states and 894 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:03,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:03,113 INFO L93 Difference]: Finished difference Result 1258 states and 1621 transitions. [2022-11-02 20:43:03,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:03,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:43:03,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:03,116 INFO L225 Difference]: With dead ends: 1258 [2022-11-02 20:43:03,116 INFO L226 Difference]: Without dead ends: 1180 [2022-11-02 20:43:03,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:03,117 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 2411 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:03,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 2742 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:43:03,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-11-02 20:43:03,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 706. [2022-11-02 20:43:03,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3055555555555556) internal successors, (893), 705 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 893 transitions. [2022-11-02 20:43:03,427 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 893 transitions. Word has length 98 [2022-11-02 20:43:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:03,427 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 893 transitions. [2022-11-02 20:43:03,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 893 transitions. [2022-11-02 20:43:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:43:03,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:03,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:03,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-02 20:43:03,429 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:03,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:03,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1160598977, now seen corresponding path program 1 times [2022-11-02 20:43:03,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:03,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117538796] [2022-11-02 20:43:03,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:03,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:03,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:03,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117538796] [2022-11-02 20:43:03,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117538796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:03,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:03,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:03,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874525579] [2022-11-02 20:43:03,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:03,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:03,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:03,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:03,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:03,743 INFO L87 Difference]: Start difference. First operand 706 states and 893 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:05,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:05,761 INFO L93 Difference]: Finished difference Result 1300 states and 1677 transitions. [2022-11-02 20:43:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:05,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:43:05,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:05,764 INFO L225 Difference]: With dead ends: 1300 [2022-11-02 20:43:05,764 INFO L226 Difference]: Without dead ends: 1211 [2022-11-02 20:43:05,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:05,765 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2584 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:05,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2584 Valid, 2488 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:43:05,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2022-11-02 20:43:05,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 706. [2022-11-02 20:43:05,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.304093567251462) internal successors, (892), 705 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 892 transitions. [2022-11-02 20:43:05,961 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 892 transitions. Word has length 98 [2022-11-02 20:43:05,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:05,961 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 892 transitions. [2022-11-02 20:43:05,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:05,962 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 892 transitions. [2022-11-02 20:43:05,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:43:05,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:05,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:05,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-02 20:43:05,963 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:05,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:05,963 INFO L85 PathProgramCache]: Analyzing trace with hash -542784863, now seen corresponding path program 1 times [2022-11-02 20:43:05,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:05,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871516295] [2022-11-02 20:43:05,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:05,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:06,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:06,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:06,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871516295] [2022-11-02 20:43:06,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871516295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:06,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:06,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:06,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246377849] [2022-11-02 20:43:06,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:06,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:06,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:06,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:06,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:06,226 INFO L87 Difference]: Start difference. First operand 706 states and 892 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:08,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:08,261 INFO L93 Difference]: Finished difference Result 1296 states and 1672 transitions. [2022-11-02 20:43:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:08,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:43:08,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:08,263 INFO L225 Difference]: With dead ends: 1296 [2022-11-02 20:43:08,264 INFO L226 Difference]: Without dead ends: 1211 [2022-11-02 20:43:08,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:08,264 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 5066 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5066 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:08,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5066 Valid, 2495 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:43:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2022-11-02 20:43:08,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 706. [2022-11-02 20:43:08,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3026315789473684) internal successors, (891), 705 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 891 transitions. [2022-11-02 20:43:08,465 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 891 transitions. Word has length 98 [2022-11-02 20:43:08,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:08,465 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 891 transitions. [2022-11-02 20:43:08,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 891 transitions. [2022-11-02 20:43:08,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 20:43:08,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:08,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:08,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-02 20:43:08,467 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:08,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:08,468 INFO L85 PathProgramCache]: Analyzing trace with hash -308070434, now seen corresponding path program 1 times [2022-11-02 20:43:08,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:08,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121360275] [2022-11-02 20:43:08,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:08,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:08,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:08,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121360275] [2022-11-02 20:43:08,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121360275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:08,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:08,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:43:08,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182292138] [2022-11-02 20:43:08,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:08,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:43:08,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:08,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:43:08,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:43:08,993 INFO L87 Difference]: Start difference. First operand 706 states and 891 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:13,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:13,329 INFO L93 Difference]: Finished difference Result 2095 states and 2817 transitions. [2022-11-02 20:43:13,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:43:13,330 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-02 20:43:13,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:13,334 INFO L225 Difference]: With dead ends: 2095 [2022-11-02 20:43:13,334 INFO L226 Difference]: Without dead ends: 1933 [2022-11-02 20:43:13,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-02 20:43:13,336 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 9064 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 2780 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9064 SdHoareTripleChecker+Valid, 4030 SdHoareTripleChecker+Invalid, 3414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 2780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:13,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9064 Valid, 4030 Invalid, 3414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 2780 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-02 20:43:13,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2022-11-02 20:43:13,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 711. [2022-11-02 20:43:13,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.3004354136429608) internal successors, (896), 710 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:13,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 896 transitions. [2022-11-02 20:43:13,733 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 896 transitions. Word has length 99 [2022-11-02 20:43:13,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:13,733 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 896 transitions. [2022-11-02 20:43:13,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:13,734 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 896 transitions. [2022-11-02 20:43:13,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 20:43:13,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:13,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:13,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-02 20:43:13,736 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:13,736 INFO L85 PathProgramCache]: Analyzing trace with hash 234210846, now seen corresponding path program 1 times [2022-11-02 20:43:13,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:13,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871991665] [2022-11-02 20:43:13,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:13,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:14,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:14,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:14,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871991665] [2022-11-02 20:43:14,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871991665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:14,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:14,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:14,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513138018] [2022-11-02 20:43:14,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:14,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:14,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:14,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:14,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:14,051 INFO L87 Difference]: Start difference. First operand 711 states and 896 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:15,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:15,996 INFO L93 Difference]: Finished difference Result 1310 states and 1684 transitions. [2022-11-02 20:43:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:15,997 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-02 20:43:15,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:15,999 INFO L225 Difference]: With dead ends: 1310 [2022-11-02 20:43:15,999 INFO L226 Difference]: Without dead ends: 1216 [2022-11-02 20:43:15,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:16,000 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4872 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:16,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4872 Valid, 2295 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:43:16,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-11-02 20:43:16,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 711. [2022-11-02 20:43:16,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.2989840348330914) internal successors, (895), 710 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 895 transitions. [2022-11-02 20:43:16,277 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 895 transitions. Word has length 99 [2022-11-02 20:43:16,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:16,277 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 895 transitions. [2022-11-02 20:43:16,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:16,278 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 895 transitions. [2022-11-02 20:43:16,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 20:43:16,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:16,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:16,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-02 20:43:16,279 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:16,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:16,279 INFO L85 PathProgramCache]: Analyzing trace with hash -118560034, now seen corresponding path program 1 times [2022-11-02 20:43:16,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:16,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892833004] [2022-11-02 20:43:16,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:16,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:16,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:16,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:16,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892833004] [2022-11-02 20:43:16,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892833004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:16,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:16,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:16,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542754869] [2022-11-02 20:43:16,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:16,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:16,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:16,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:16,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:16,580 INFO L87 Difference]: Start difference. First operand 711 states and 895 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:18,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:18,754 INFO L93 Difference]: Finished difference Result 1266 states and 1625 transitions. [2022-11-02 20:43:18,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:18,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-02 20:43:18,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:18,756 INFO L225 Difference]: With dead ends: 1266 [2022-11-02 20:43:18,757 INFO L226 Difference]: Without dead ends: 1185 [2022-11-02 20:43:18,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:18,758 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 2351 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:18,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 2875 Invalid, 2098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:43:18,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2022-11-02 20:43:19,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 711. [2022-11-02 20:43:19,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.297532656023222) internal successors, (894), 710 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 894 transitions. [2022-11-02 20:43:19,077 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 894 transitions. Word has length 99 [2022-11-02 20:43:19,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:19,078 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 894 transitions. [2022-11-02 20:43:19,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:19,078 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 894 transitions. [2022-11-02 20:43:19,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 20:43:19,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:19,079 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:19,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-02 20:43:19,079 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:19,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:19,080 INFO L85 PathProgramCache]: Analyzing trace with hash -271572002, now seen corresponding path program 1 times [2022-11-02 20:43:19,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:19,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121396961] [2022-11-02 20:43:19,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:19,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:19,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:19,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121396961] [2022-11-02 20:43:19,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121396961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:19,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:19,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:19,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65990241] [2022-11-02 20:43:19,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:19,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:19,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:19,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:19,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:19,357 INFO L87 Difference]: Start difference. First operand 711 states and 894 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:21,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:21,427 INFO L93 Difference]: Finished difference Result 1305 states and 1676 transitions. [2022-11-02 20:43:21,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:21,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-02 20:43:21,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:21,429 INFO L225 Difference]: With dead ends: 1305 [2022-11-02 20:43:21,429 INFO L226 Difference]: Without dead ends: 1216 [2022-11-02 20:43:21,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:21,430 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 5052 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5052 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:21,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5052 Valid, 2491 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:43:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-11-02 20:43:21,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 711. [2022-11-02 20:43:21,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.2960812772133528) internal successors, (893), 710 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:21,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 893 transitions. [2022-11-02 20:43:21,668 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 893 transitions. Word has length 99 [2022-11-02 20:43:21,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:21,669 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 893 transitions. [2022-11-02 20:43:21,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:21,669 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 893 transitions. [2022-11-02 20:43:21,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 20:43:21,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:21,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:21,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-02 20:43:21,671 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:21,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:21,672 INFO L85 PathProgramCache]: Analyzing trace with hash -370973194, now seen corresponding path program 1 times [2022-11-02 20:43:21,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:21,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007154237] [2022-11-02 20:43:21,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:21,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:21,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:21,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:21,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007154237] [2022-11-02 20:43:21,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007154237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:21,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:21,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:21,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208090653] [2022-11-02 20:43:21,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:21,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:21,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:21,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:21,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:21,966 INFO L87 Difference]: Start difference. First operand 711 states and 893 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:24,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:24,421 INFO L93 Difference]: Finished difference Result 1260 states and 1617 transitions. [2022-11-02 20:43:24,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:24,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-02 20:43:24,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:24,423 INFO L225 Difference]: With dead ends: 1260 [2022-11-02 20:43:24,424 INFO L226 Difference]: Without dead ends: 1184 [2022-11-02 20:43:24,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:24,425 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 3940 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3940 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:24,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3940 Valid, 3557 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-02 20:43:24,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-11-02 20:43:24,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 710. [2022-11-02 20:43:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 688 states have (on average 1.2950581395348837) internal successors, (891), 709 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:24,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 891 transitions. [2022-11-02 20:43:24,665 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 891 transitions. Word has length 99 [2022-11-02 20:43:24,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:24,665 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 891 transitions. [2022-11-02 20:43:24,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:24,666 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 891 transitions. [2022-11-02 20:43:24,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 20:43:24,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:24,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:24,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-02 20:43:24,667 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:24,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:24,668 INFO L85 PathProgramCache]: Analyzing trace with hash 193533868, now seen corresponding path program 1 times [2022-11-02 20:43:24,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:24,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424775921] [2022-11-02 20:43:24,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:24,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:25,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:25,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:25,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424775921] [2022-11-02 20:43:25,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424775921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:25,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:25,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:25,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964705966] [2022-11-02 20:43:25,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:25,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:25,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:25,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:25,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:25,048 INFO L87 Difference]: Start difference. First operand 710 states and 891 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:27,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:27,627 INFO L93 Difference]: Finished difference Result 1259 states and 1615 transitions. [2022-11-02 20:43:27,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:27,627 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-02 20:43:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:27,629 INFO L225 Difference]: With dead ends: 1259 [2022-11-02 20:43:27,629 INFO L226 Difference]: Without dead ends: 1183 [2022-11-02 20:43:27,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:27,630 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 3823 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3823 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 2746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:27,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3823 Valid, 3823 Invalid, 2746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2570 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-02 20:43:27,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-11-02 20:43:27,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 709. [2022-11-02 20:43:27,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 687 states have (on average 1.2940320232896652) internal successors, (889), 708 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:27,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 889 transitions. [2022-11-02 20:43:27,885 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 889 transitions. Word has length 99 [2022-11-02 20:43:27,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:27,885 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 889 transitions. [2022-11-02 20:43:27,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:27,885 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 889 transitions. [2022-11-02 20:43:27,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 20:43:27,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:27,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:27,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-02 20:43:27,887 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:27,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:27,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1049556564, now seen corresponding path program 1 times [2022-11-02 20:43:27,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:27,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649729676] [2022-11-02 20:43:27,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:27,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:28,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:28,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649729676] [2022-11-02 20:43:28,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649729676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:28,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:28,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:28,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919570366] [2022-11-02 20:43:28,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:28,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:28,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:28,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:28,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:28,132 INFO L87 Difference]: Start difference. First operand 709 states and 889 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:30,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:30,454 INFO L93 Difference]: Finished difference Result 1257 states and 1612 transitions. [2022-11-02 20:43:30,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:30,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-02 20:43:30,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:30,456 INFO L225 Difference]: With dead ends: 1257 [2022-11-02 20:43:30,456 INFO L226 Difference]: Without dead ends: 1181 [2022-11-02 20:43:30,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:30,457 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 3162 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:30,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3162 Valid, 3084 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:43:30,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2022-11-02 20:43:30,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 708. [2022-11-02 20:43:30,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 686 states have (on average 1.293002915451895) internal successors, (887), 707 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:30,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 887 transitions. [2022-11-02 20:43:30,711 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 887 transitions. Word has length 99 [2022-11-02 20:43:30,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:30,711 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 887 transitions. [2022-11-02 20:43:30,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:30,711 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 887 transitions. [2022-11-02 20:43:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 20:43:30,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:30,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:30,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-02 20:43:30,712 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:30,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:30,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1664921314, now seen corresponding path program 1 times [2022-11-02 20:43:30,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:30,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960173017] [2022-11-02 20:43:30,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:30,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:31,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:31,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960173017] [2022-11-02 20:43:31,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960173017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:31,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:31,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-02 20:43:31,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444234967] [2022-11-02 20:43:31,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:31,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:43:31,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:31,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:43:31,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:43:31,566 INFO L87 Difference]: Start difference. First operand 708 states and 887 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:34,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:34,971 INFO L93 Difference]: Finished difference Result 2352 states and 3088 transitions. [2022-11-02 20:43:34,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:43:34,972 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-02 20:43:34,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:34,974 INFO L225 Difference]: With dead ends: 2352 [2022-11-02 20:43:34,974 INFO L226 Difference]: Without dead ends: 2259 [2022-11-02 20:43:34,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-02 20:43:34,975 INFO L413 NwaCegarLoop]: 1151 mSDtfsCounter, 7369 mSDsluCounter, 6415 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7369 SdHoareTripleChecker+Valid, 7566 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:34,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7369 Valid, 7566 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 20:43:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2022-11-02 20:43:35,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 690. [2022-11-02 20:43:35,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2904191616766467) internal successors, (862), 689 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 862 transitions. [2022-11-02 20:43:35,258 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 862 transitions. Word has length 99 [2022-11-02 20:43:35,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:35,259 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 862 transitions. [2022-11-02 20:43:35,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 862 transitions. [2022-11-02 20:43:35,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 20:43:35,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:35,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:35,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-02 20:43:35,261 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:35,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:35,261 INFO L85 PathProgramCache]: Analyzing trace with hash 760861535, now seen corresponding path program 1 times [2022-11-02 20:43:35,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:35,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053847328] [2022-11-02 20:43:35,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:35,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:35,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:35,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053847328] [2022-11-02 20:43:35,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053847328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:35,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:35,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:35,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762339324] [2022-11-02 20:43:35,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:35,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:35,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:35,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:35,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:35,581 INFO L87 Difference]: Start difference. First operand 690 states and 862 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:38,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:38,123 INFO L93 Difference]: Finished difference Result 1356 states and 1758 transitions. [2022-11-02 20:43:38,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:38,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-02 20:43:38,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:38,124 INFO L225 Difference]: With dead ends: 1356 [2022-11-02 20:43:38,124 INFO L226 Difference]: Without dead ends: 1209 [2022-11-02 20:43:38,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:38,125 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 3106 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:38,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3106 Valid, 3375 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 20:43:38,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2022-11-02 20:43:38,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 685. [2022-11-02 20:43:38,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.2911010558069382) internal successors, (856), 684 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:38,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 856 transitions. [2022-11-02 20:43:38,395 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 856 transitions. Word has length 99 [2022-11-02 20:43:38,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:38,395 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 856 transitions. [2022-11-02 20:43:38,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:38,396 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 856 transitions. [2022-11-02 20:43:38,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:43:38,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:38,397 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:38,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-02 20:43:38,397 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:38,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:38,398 INFO L85 PathProgramCache]: Analyzing trace with hash 193950012, now seen corresponding path program 1 times [2022-11-02 20:43:38,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:38,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185433362] [2022-11-02 20:43:38,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:38,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:38,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:38,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:38,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185433362] [2022-11-02 20:43:38,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185433362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:38,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:38,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:38,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296522879] [2022-11-02 20:43:38,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:38,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:38,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:38,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:38,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:38,752 INFO L87 Difference]: Start difference. First operand 685 states and 856 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:41,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:41,243 INFO L93 Difference]: Finished difference Result 1319 states and 1700 transitions. [2022-11-02 20:43:41,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:41,244 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:43:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:41,245 INFO L225 Difference]: With dead ends: 1319 [2022-11-02 20:43:41,245 INFO L226 Difference]: Without dead ends: 1206 [2022-11-02 20:43:41,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:43:41,246 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 4436 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4436 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:41,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4436 Valid, 2969 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:43:41,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-11-02 20:43:41,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 685. [2022-11-02 20:43:41,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.2895927601809956) internal successors, (855), 684 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:41,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 855 transitions. [2022-11-02 20:43:41,521 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 855 transitions. Word has length 100 [2022-11-02 20:43:41,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:41,521 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 855 transitions. [2022-11-02 20:43:41,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:41,521 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 855 transitions. [2022-11-02 20:43:41,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:43:41,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:41,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:41,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-02 20:43:41,522 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:41,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:41,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1060069596, now seen corresponding path program 1 times [2022-11-02 20:43:41,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:41,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133916231] [2022-11-02 20:43:41,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:41,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:41,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:41,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:41,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133916231] [2022-11-02 20:43:41,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133916231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:41,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:41,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:41,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836921019] [2022-11-02 20:43:41,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:41,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:41,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:41,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:41,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:41,826 INFO L87 Difference]: Start difference. First operand 685 states and 855 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:44,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:44,187 INFO L93 Difference]: Finished difference Result 1227 states and 1569 transitions. [2022-11-02 20:43:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:44,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:43:44,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:44,189 INFO L225 Difference]: With dead ends: 1227 [2022-11-02 20:43:44,189 INFO L226 Difference]: Without dead ends: 1149 [2022-11-02 20:43:44,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:44,190 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 2253 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:44,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2253 Valid, 2830 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:43:44,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2022-11-02 20:43:44,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 685. [2022-11-02 20:43:44,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.2880844645550529) internal successors, (854), 684 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 854 transitions. [2022-11-02 20:43:44,468 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 854 transitions. Word has length 100 [2022-11-02 20:43:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:44,468 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 854 transitions. [2022-11-02 20:43:44,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:44,468 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 854 transitions. [2022-11-02 20:43:44,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:43:44,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:44,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:44,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-02 20:43:44,469 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:44,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:44,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1372751492, now seen corresponding path program 1 times [2022-11-02 20:43:44,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:44,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544748273] [2022-11-02 20:43:44,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:44,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:44,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:44,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544748273] [2022-11-02 20:43:44,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544748273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:44,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:44,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:43:44,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925487796] [2022-11-02 20:43:44,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:44,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:43:44,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:44,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:43:44,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:43:44,953 INFO L87 Difference]: Start difference. First operand 685 states and 854 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:49,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:49,650 INFO L93 Difference]: Finished difference Result 1893 states and 2518 transitions. [2022-11-02 20:43:49,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:43:49,651 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:43:49,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:49,653 INFO L225 Difference]: With dead ends: 1893 [2022-11-02 20:43:49,653 INFO L226 Difference]: Without dead ends: 1780 [2022-11-02 20:43:49,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-02 20:43:49,654 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 6999 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 2532 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6999 SdHoareTripleChecker+Valid, 3715 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 2532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:49,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6999 Valid, 3715 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 2532 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 20:43:49,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2022-11-02 20:43:50,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 690. [2022-11-02 20:43:50,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.285928143712575) internal successors, (859), 689 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:50,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 859 transitions. [2022-11-02 20:43:50,069 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 859 transitions. Word has length 100 [2022-11-02 20:43:50,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:50,069 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 859 transitions. [2022-11-02 20:43:50,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:50,069 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 859 transitions. [2022-11-02 20:43:50,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:43:50,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:50,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:50,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-02 20:43:50,070 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:50,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:50,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2105960988, now seen corresponding path program 1 times [2022-11-02 20:43:50,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:50,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33165647] [2022-11-02 20:43:50,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:50,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:50,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:50,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33165647] [2022-11-02 20:43:50,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33165647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:50,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:50,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:50,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835683825] [2022-11-02 20:43:50,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:50,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:50,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:50,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:50,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:50,468 INFO L87 Difference]: Start difference. First operand 690 states and 859 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:53,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:53,320 INFO L93 Difference]: Finished difference Result 1232 states and 1573 transitions. [2022-11-02 20:43:53,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:53,321 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:43:53,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:53,323 INFO L225 Difference]: With dead ends: 1232 [2022-11-02 20:43:53,323 INFO L226 Difference]: Without dead ends: 1154 [2022-11-02 20:43:53,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:53,324 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 3712 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3712 SdHoareTripleChecker+Valid, 3674 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:53,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3712 Valid, 3674 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-02 20:43:53,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-11-02 20:43:53,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-11-02 20:43:53,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.284431137724551) internal successors, (858), 689 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:53,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 858 transitions. [2022-11-02 20:43:53,676 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 858 transitions. Word has length 100 [2022-11-02 20:43:53,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:53,677 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 858 transitions. [2022-11-02 20:43:53,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 858 transitions. [2022-11-02 20:43:53,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:43:53,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:53,679 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:53,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-02 20:43:53,679 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:53,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:53,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2115298916, now seen corresponding path program 1 times [2022-11-02 20:43:53,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:53,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483063065] [2022-11-02 20:43:53,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:53,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:54,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:54,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:54,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483063065] [2022-11-02 20:43:54,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483063065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:54,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:54,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:54,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828182121] [2022-11-02 20:43:54,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:54,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:54,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:54,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:54,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:54,036 INFO L87 Difference]: Start difference. First operand 690 states and 858 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:56,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:56,655 INFO L93 Difference]: Finished difference Result 1310 states and 1685 transitions. [2022-11-02 20:43:56,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:56,656 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:43:56,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:56,657 INFO L225 Difference]: With dead ends: 1310 [2022-11-02 20:43:56,657 INFO L226 Difference]: Without dead ends: 1206 [2022-11-02 20:43:56,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:43:56,658 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 4776 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4776 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:56,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4776 Valid, 2872 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:43:56,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-11-02 20:43:56,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 690. [2022-11-02 20:43:56,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.282934131736527) internal successors, (857), 689 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:56,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 857 transitions. [2022-11-02 20:43:56,978 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 857 transitions. Word has length 100 [2022-11-02 20:43:56,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:56,978 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 857 transitions. [2022-11-02 20:43:56,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:56,978 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 857 transitions. [2022-11-02 20:43:56,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:43:56,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:56,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:56,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-02 20:43:56,979 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:43:56,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:56,980 INFO L85 PathProgramCache]: Analyzing trace with hash 361781404, now seen corresponding path program 1 times [2022-11-02 20:43:56,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:56,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55291524] [2022-11-02 20:43:56,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:56,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:57,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:57,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:57,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55291524] [2022-11-02 20:43:57,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55291524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:57,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:57,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:43:57,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727469182] [2022-11-02 20:43:57,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:57,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:43:57,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:57,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:43:57,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:43:57,204 INFO L87 Difference]: Start difference. First operand 690 states and 857 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:59,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:59,973 INFO L93 Difference]: Finished difference Result 1232 states and 1571 transitions. [2022-11-02 20:43:59,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:43:59,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:43:59,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:59,975 INFO L225 Difference]: With dead ends: 1232 [2022-11-02 20:43:59,975 INFO L226 Difference]: Without dead ends: 1154 [2022-11-02 20:43:59,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:43:59,976 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 3982 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3982 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:59,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3982 Valid, 3019 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 20:43:59,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-11-02 20:44:00,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-11-02 20:44:00,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.281437125748503) internal successors, (856), 689 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:00,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 856 transitions. [2022-11-02 20:44:00,342 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 856 transitions. Word has length 100 [2022-11-02 20:44:00,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:00,342 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 856 transitions. [2022-11-02 20:44:00,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:00,342 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 856 transitions. [2022-11-02 20:44:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:44:00,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:00,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:00,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-02 20:44:00,343 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:00,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:00,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1379458134, now seen corresponding path program 1 times [2022-11-02 20:44:00,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:00,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108801832] [2022-11-02 20:44:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:00,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:00,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:00,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:00,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108801832] [2022-11-02 20:44:00,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108801832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:00,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:00,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:44:00,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438962975] [2022-11-02 20:44:00,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:00,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:44:00,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:00,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:44:00,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:44:00,586 INFO L87 Difference]: Start difference. First operand 690 states and 856 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:03,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:03,170 INFO L93 Difference]: Finished difference Result 1376 states and 1771 transitions. [2022-11-02 20:44:03,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:44:03,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:44:03,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:03,172 INFO L225 Difference]: With dead ends: 1376 [2022-11-02 20:44:03,172 INFO L226 Difference]: Without dead ends: 1214 [2022-11-02 20:44:03,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:44:03,173 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 3072 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3072 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:03,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3072 Valid, 3415 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:44:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-11-02 20:44:03,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 685. [2022-11-02 20:44:03,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.2820512820512822) internal successors, (850), 684 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:03,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 850 transitions. [2022-11-02 20:44:03,522 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 850 transitions. Word has length 100 [2022-11-02 20:44:03,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:03,522 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 850 transitions. [2022-11-02 20:44:03,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:03,523 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 850 transitions. [2022-11-02 20:44:03,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:44:03,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:03,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:03,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-02 20:44:03,524 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:03,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:03,524 INFO L85 PathProgramCache]: Analyzing trace with hash -584559812, now seen corresponding path program 1 times [2022-11-02 20:44:03,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:03,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463150588] [2022-11-02 20:44:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:03,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:04,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:04,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463150588] [2022-11-02 20:44:04,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463150588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:04,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:04,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:44:04,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154265538] [2022-11-02 20:44:04,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:04,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:44:04,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:04,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:44:04,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:44:04,055 INFO L87 Difference]: Start difference. First operand 685 states and 850 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:08,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:08,884 INFO L93 Difference]: Finished difference Result 1870 states and 2491 transitions. [2022-11-02 20:44:08,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:44:08,884 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:44:08,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:08,886 INFO L225 Difference]: With dead ends: 1870 [2022-11-02 20:44:08,886 INFO L226 Difference]: Without dead ends: 1766 [2022-11-02 20:44:08,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-02 20:44:08,889 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 6740 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 2590 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6740 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 3116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 2590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:08,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6740 Valid, 3856 Invalid, 3116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 2590 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-02 20:44:08,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2022-11-02 20:44:09,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 690. [2022-11-02 20:44:09,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.279940119760479) internal successors, (855), 689 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:09,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 855 transitions. [2022-11-02 20:44:09,281 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 855 transitions. Word has length 100 [2022-11-02 20:44:09,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:09,281 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 855 transitions. [2022-11-02 20:44:09,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:09,282 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 855 transitions. [2022-11-02 20:44:09,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:44:09,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:09,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:09,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-02 20:44:09,283 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:09,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:09,284 INFO L85 PathProgramCache]: Analyzing trace with hash 930233820, now seen corresponding path program 1 times [2022-11-02 20:44:09,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:09,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996209427] [2022-11-02 20:44:09,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:09,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:09,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996209427] [2022-11-02 20:44:09,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996209427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:09,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:09,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:44:09,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980683995] [2022-11-02 20:44:09,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:09,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:44:09,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:09,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:44:09,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:44:09,534 INFO L87 Difference]: Start difference. First operand 690 states and 855 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:12,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:12,316 INFO L93 Difference]: Finished difference Result 1232 states and 1568 transitions. [2022-11-02 20:44:12,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:44:12,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:44:12,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:12,318 INFO L225 Difference]: With dead ends: 1232 [2022-11-02 20:44:12,318 INFO L226 Difference]: Without dead ends: 1154 [2022-11-02 20:44:12,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:44:12,318 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 2022 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 2322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:12,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 3253 Invalid, 2322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2223 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:44:12,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-11-02 20:44:12,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-11-02 20:44:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.278443113772455) internal successors, (854), 689 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:12,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 854 transitions. [2022-11-02 20:44:12,653 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 854 transitions. Word has length 100 [2022-11-02 20:44:12,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:12,654 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 854 transitions. [2022-11-02 20:44:12,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:12,654 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 854 transitions. [2022-11-02 20:44:12,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:44:12,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:12,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:12,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-02 20:44:12,655 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:12,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:12,655 INFO L85 PathProgramCache]: Analyzing trace with hash -946932452, now seen corresponding path program 1 times [2022-11-02 20:44:12,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:12,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030857779] [2022-11-02 20:44:12,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:12,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:12,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:12,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:12,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030857779] [2022-11-02 20:44:12,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030857779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:12,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:12,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:44:12,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197496073] [2022-11-02 20:44:12,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:12,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:44:12,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:12,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:44:12,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:44:12,945 INFO L87 Difference]: Start difference. First operand 690 states and 854 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:15,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:15,600 INFO L93 Difference]: Finished difference Result 1299 states and 1669 transitions. [2022-11-02 20:44:15,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:44:15,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:44:15,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:15,602 INFO L225 Difference]: With dead ends: 1299 [2022-11-02 20:44:15,602 INFO L226 Difference]: Without dead ends: 1201 [2022-11-02 20:44:15,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:44:15,603 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 4178 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4178 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:15,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4178 Valid, 3182 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:44:15,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-11-02 20:44:15,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 690. [2022-11-02 20:44:15,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.276946107784431) internal successors, (853), 689 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:15,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 853 transitions. [2022-11-02 20:44:15,953 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 853 transitions. Word has length 100 [2022-11-02 20:44:15,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:15,953 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 853 transitions. [2022-11-02 20:44:15,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:15,953 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 853 transitions. [2022-11-02 20:44:15,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:44:15,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:15,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:15,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-02 20:44:15,954 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:15,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:15,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1810001348, now seen corresponding path program 1 times [2022-11-02 20:44:15,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:15,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308653370] [2022-11-02 20:44:15,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:15,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:16,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:16,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:16,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308653370] [2022-11-02 20:44:16,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308653370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:16,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:16,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:44:16,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867542712] [2022-11-02 20:44:16,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:16,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:44:16,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:16,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:44:16,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:44:16,237 INFO L87 Difference]: Start difference. First operand 690 states and 853 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:18,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:18,907 INFO L93 Difference]: Finished difference Result 1305 states and 1674 transitions. [2022-11-02 20:44:18,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:44:18,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:44:18,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:18,908 INFO L225 Difference]: With dead ends: 1305 [2022-11-02 20:44:18,908 INFO L226 Difference]: Without dead ends: 1201 [2022-11-02 20:44:18,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:44:18,909 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 4356 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4356 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:18,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4356 Valid, 3023 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:44:18,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-11-02 20:44:19,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 690. [2022-11-02 20:44:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2754491017964071) internal successors, (852), 689 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:19,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 852 transitions. [2022-11-02 20:44:19,246 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 852 transitions. Word has length 100 [2022-11-02 20:44:19,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:19,246 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 852 transitions. [2022-11-02 20:44:19,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:19,246 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 852 transitions. [2022-11-02 20:44:19,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:44:19,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:19,247 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:19,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-02 20:44:19,247 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:19,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:19,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1688175644, now seen corresponding path program 1 times [2022-11-02 20:44:19,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:19,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579172301] [2022-11-02 20:44:19,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:19,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:19,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:19,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579172301] [2022-11-02 20:44:19,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579172301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:19,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:19,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:44:19,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042279540] [2022-11-02 20:44:19,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:19,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:44:19,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:19,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:44:19,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:44:19,511 INFO L87 Difference]: Start difference. First operand 690 states and 852 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:22,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:22,207 INFO L93 Difference]: Finished difference Result 1232 states and 1564 transitions. [2022-11-02 20:44:22,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:44:22,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:44:22,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:22,209 INFO L225 Difference]: With dead ends: 1232 [2022-11-02 20:44:22,209 INFO L226 Difference]: Without dead ends: 1154 [2022-11-02 20:44:22,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:44:22,210 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 3048 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3048 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:22,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3048 Valid, 2994 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:44:22,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-11-02 20:44:22,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-11-02 20:44:22,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2739520958083832) internal successors, (851), 689 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:22,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 851 transitions. [2022-11-02 20:44:22,616 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 851 transitions. Word has length 100 [2022-11-02 20:44:22,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:22,616 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 851 transitions. [2022-11-02 20:44:22,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:22,617 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 851 transitions. [2022-11-02 20:44:22,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:44:22,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:22,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:22,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-02 20:44:22,618 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:22,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:22,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1307086337, now seen corresponding path program 1 times [2022-11-02 20:44:22,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:22,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759327545] [2022-11-02 20:44:22,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:22,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:22,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:22,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759327545] [2022-11-02 20:44:22,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759327545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:22,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:22,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:44:22,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8017178] [2022-11-02 20:44:22,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:22,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:44:22,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:22,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:44:22,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:44:22,917 INFO L87 Difference]: Start difference. First operand 690 states and 851 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:25,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:25,789 INFO L93 Difference]: Finished difference Result 1230 states and 1560 transitions. [2022-11-02 20:44:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:44:25,790 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:44:25,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:25,791 INFO L225 Difference]: With dead ends: 1230 [2022-11-02 20:44:25,791 INFO L226 Difference]: Without dead ends: 1154 [2022-11-02 20:44:25,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:44:25,792 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 3773 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3773 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:25,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3773 Valid, 3453 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 20:44:25,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-11-02 20:44:26,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-11-02 20:44:26,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2724550898203593) internal successors, (850), 689 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:26,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 850 transitions. [2022-11-02 20:44:26,148 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 850 transitions. Word has length 100 [2022-11-02 20:44:26,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:26,148 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 850 transitions. [2022-11-02 20:44:26,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 850 transitions. [2022-11-02 20:44:26,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:44:26,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:26,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:26,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-02 20:44:26,150 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:26,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:26,150 INFO L85 PathProgramCache]: Analyzing trace with hash 623323004, now seen corresponding path program 1 times [2022-11-02 20:44:26,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:26,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026827570] [2022-11-02 20:44:26,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:26,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:26,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:26,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:26,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026827570] [2022-11-02 20:44:26,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026827570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:26,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:26,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:44:26,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689413876] [2022-11-02 20:44:26,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:26,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:44:26,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:26,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:44:26,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:44:26,437 INFO L87 Difference]: Start difference. First operand 690 states and 850 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:29,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:29,377 INFO L93 Difference]: Finished difference Result 1232 states and 1561 transitions. [2022-11-02 20:44:29,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:44:29,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:44:29,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:29,379 INFO L225 Difference]: With dead ends: 1232 [2022-11-02 20:44:29,379 INFO L226 Difference]: Without dead ends: 1154 [2022-11-02 20:44:29,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:44:29,380 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 3769 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3769 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:29,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3769 Valid, 3452 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 20:44:29,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-11-02 20:44:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-11-02 20:44:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2709580838323353) internal successors, (849), 689 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:29,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 849 transitions. [2022-11-02 20:44:29,728 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 849 transitions. Word has length 100 [2022-11-02 20:44:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:29,728 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 849 transitions. [2022-11-02 20:44:29,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:29,728 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 849 transitions. [2022-11-02 20:44:29,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:44:29,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:29,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:29,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-02 20:44:29,730 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:29,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:29,730 INFO L85 PathProgramCache]: Analyzing trace with hash 964528316, now seen corresponding path program 1 times [2022-11-02 20:44:29,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:29,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181113379] [2022-11-02 20:44:29,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:29,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:30,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:30,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181113379] [2022-11-02 20:44:30,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181113379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:30,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:30,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:44:30,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631854485] [2022-11-02 20:44:30,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:30,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:44:30,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:30,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:44:30,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:44:30,126 INFO L87 Difference]: Start difference. First operand 690 states and 849 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:35,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:35,306 INFO L93 Difference]: Finished difference Result 1888 states and 2502 transitions. [2022-11-02 20:44:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:44:35,307 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-02 20:44:35,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:35,308 INFO L225 Difference]: With dead ends: 1888 [2022-11-02 20:44:35,309 INFO L226 Difference]: Without dead ends: 1775 [2022-11-02 20:44:35,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-02 20:44:35,309 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 6467 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 2908 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6467 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 3492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 2908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:35,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6467 Valid, 4197 Invalid, 3492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 2908 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-02 20:44:35,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2022-11-02 20:44:35,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 695. [2022-11-02 20:44:35,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 673 states have (on average 1.2689450222882614) internal successors, (854), 694 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:35,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 854 transitions. [2022-11-02 20:44:35,684 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 854 transitions. Word has length 100 [2022-11-02 20:44:35,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:35,684 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 854 transitions. [2022-11-02 20:44:35,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:35,684 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 854 transitions. [2022-11-02 20:44:35,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-02 20:44:35,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:35,685 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:35,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-02 20:44:35,685 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:35,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:35,686 INFO L85 PathProgramCache]: Analyzing trace with hash 205443651, now seen corresponding path program 1 times [2022-11-02 20:44:35,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:35,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138670065] [2022-11-02 20:44:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:35,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:35,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:35,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:35,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138670065] [2022-11-02 20:44:35,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138670065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:35,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:35,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:44:35,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482128721] [2022-11-02 20:44:35,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:35,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:44:35,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:35,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:44:35,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:44:35,955 INFO L87 Difference]: Start difference. First operand 695 states and 854 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:38,892 INFO L93 Difference]: Finished difference Result 1240 states and 1568 transitions. [2022-11-02 20:44:38,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:44:38,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-11-02 20:44:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:38,894 INFO L225 Difference]: With dead ends: 1240 [2022-11-02 20:44:38,894 INFO L226 Difference]: Without dead ends: 1159 [2022-11-02 20:44:38,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:44:38,895 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 3767 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3767 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:38,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3767 Valid, 3452 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 20:44:38,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2022-11-02 20:44:39,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 695. [2022-11-02 20:44:39,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 673 states have (on average 1.2674591381872213) internal successors, (853), 694 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 853 transitions. [2022-11-02 20:44:39,259 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 853 transitions. Word has length 101 [2022-11-02 20:44:39,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:39,259 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 853 transitions. [2022-11-02 20:44:39,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:39,260 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 853 transitions. [2022-11-02 20:44:39,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-02 20:44:39,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:39,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:39,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-02 20:44:39,261 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:39,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:39,261 INFO L85 PathProgramCache]: Analyzing trace with hash 558214531, now seen corresponding path program 1 times [2022-11-02 20:44:39,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:39,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154637071] [2022-11-02 20:44:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:39,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:39,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:39,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:39,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154637071] [2022-11-02 20:44:39,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154637071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:39,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:39,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:44:39,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787483687] [2022-11-02 20:44:39,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:39,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:44:39,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:39,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:44:39,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:44:39,465 INFO L87 Difference]: Start difference. First operand 695 states and 853 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:42,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:42,042 INFO L93 Difference]: Finished difference Result 1294 states and 1639 transitions. [2022-11-02 20:44:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:44:42,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-11-02 20:44:42,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:42,043 INFO L225 Difference]: With dead ends: 1294 [2022-11-02 20:44:42,043 INFO L226 Difference]: Without dead ends: 1200 [2022-11-02 20:44:42,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:44:42,044 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 3375 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3375 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:42,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3375 Valid, 2784 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:44:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-11-02 20:44:42,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 695. [2022-11-02 20:44:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 673 states have (on average 1.2659732540861812) internal successors, (852), 694 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:42,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 852 transitions. [2022-11-02 20:44:42,422 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 852 transitions. Word has length 101 [2022-11-02 20:44:42,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:42,423 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 852 transitions. [2022-11-02 20:44:42,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:44:42,423 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 852 transitions. [2022-11-02 20:44:42,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-02 20:44:42,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:42,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:44:42,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-02 20:44:42,424 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-02 20:44:42,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:42,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1900513027, now seen corresponding path program 1 times [2022-11-02 20:44:42,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:42,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864927017] [2022-11-02 20:44:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:42,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:42,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:42,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:42,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864927017] [2022-11-02 20:44:42,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864927017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:42,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:42,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:44:42,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161689532] [2022-11-02 20:44:42,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:42,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:44:42,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:42,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:44:42,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:44:42,809 INFO L87 Difference]: Start difference. First operand 695 states and 852 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)