./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa --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 7853b3826176a0fe575c35877885ca2c640283bf6a2200e21b7819452b726d2c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:58:28,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:58:28,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:58:28,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:58:28,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:58:28,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:58:28,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:58:28,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:58:28,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:58:28,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:58:28,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:58:28,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:58:28,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:58:28,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:58:28,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:58:28,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:58:28,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:58:28,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:58:28,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:58:28,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:58:28,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:58:28,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:58:28,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:58:28,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:58:28,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:58:28,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:58:28,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:58:28,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:58:28,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:58:28,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:58:28,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:58:28,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:58:28,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:58:28,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:58:28,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:58:28,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:58:28,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:58:28,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:58:28,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:58:28,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:58:28,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:58:28,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:58:28,584 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:58:28,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:58:28,584 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:58:28,584 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:58:28,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:58:28,585 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:58:28,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:58:28,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:58:28,585 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:58:28,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:58:28,586 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:58:28,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:58:28,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:58:28,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:58:28,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:58:28,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:58:28,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:58:28,587 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:58:28,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:58:28,587 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:58:28,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:58:28,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:58:28,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:58:28,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:58:28,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:58:28,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:58:28,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:58:28,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:58:28,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:58:28,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:58:28,588 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:58:28,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:58:28,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:58:28,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:58:28,589 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7853b3826176a0fe575c35877885ca2c640283bf6a2200e21b7819452b726d2c [2021-12-07 00:58:28,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:58:28,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:58:28,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:58:28,790 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:58:28,791 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:58:28,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-07 00:58:28,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/data/659c5d706/4b9ed32dfc214e5185eb651e523f6630/FLAG8ba5201b6 [2021-12-07 00:58:29,403 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:58:29,404 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-07 00:58:29,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/data/659c5d706/4b9ed32dfc214e5185eb651e523f6630/FLAG8ba5201b6 [2021-12-07 00:58:29,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/data/659c5d706/4b9ed32dfc214e5185eb651e523f6630 [2021-12-07 00:58:29,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:58:29,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:58:29,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:58:29,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:58:29,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:58:29,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:58:29" (1/1) ... [2021-12-07 00:58:29,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc165f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:29, skipping insertion in model container [2021-12-07 00:58:29,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:58:29" (1/1) ... [2021-12-07 00:58:29,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:58:29,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:58:30,291 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[28933,28946] [2021-12-07 00:58:30,355 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[50969,50982] [2021-12-07 00:58:30,373 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58695,58708] [2021-12-07 00:58:30,424 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83802,83815] [2021-12-07 00:58:30,454 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98975,98988] [2021-12-07 00:58:30,503 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115686,115699] [2021-12-07 00:58:30,542 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132053,132066] [2021-12-07 00:58:30,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:58:30,690 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:58:30,778 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[28933,28946] [2021-12-07 00:58:30,825 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[50969,50982] [2021-12-07 00:58:30,838 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58695,58708] [2021-12-07 00:58:30,880 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83802,83815] [2021-12-07 00:58:30,905 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98975,98988] [2021-12-07 00:58:30,932 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115686,115699] [2021-12-07 00:58:30,959 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_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132053,132066] [2021-12-07 00:58:31,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:58:31,096 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:58:31,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31 WrapperNode [2021-12-07 00:58:31,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:58:31,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:58:31,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:58:31,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:58:31,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (1/1) ... [2021-12-07 00:58:31,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (1/1) ... [2021-12-07 00:58:31,237 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 9191 [2021-12-07 00:58:31,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:58:31,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:58:31,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:58:31,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:58:31,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (1/1) ... [2021-12-07 00:58:31,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (1/1) ... [2021-12-07 00:58:31,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (1/1) ... [2021-12-07 00:58:31,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (1/1) ... [2021-12-07 00:58:31,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (1/1) ... [2021-12-07 00:58:31,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (1/1) ... [2021-12-07 00:58:31,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (1/1) ... [2021-12-07 00:58:31,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:58:31,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:58:31,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:58:31,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:58:31,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (1/1) ... [2021-12-07 00:58:31,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:58:31,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:58:31,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:58:31,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874da125-ab5c-412c-9e7e-f2a31dbb4fd3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:58:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:58:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:58:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:58:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:58:31,635 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:58:31,636 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:58:33,886 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:58:33,906 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:58:33,907 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 00:58:33,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:58:33 BoogieIcfgContainer [2021-12-07 00:58:33,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:58:33,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:58:33,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:58:33,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:58:33,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:58:29" (1/3) ... [2021-12-07 00:58:33,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d2bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:58:33, skipping insertion in model container [2021-12-07 00:58:33,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:31" (2/3) ... [2021-12-07 00:58:33,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d2bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:58:33, skipping insertion in model container [2021-12-07 00:58:33,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:58:33" (3/3) ... [2021-12-07 00:58:33,916 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-07 00:58:33,920 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:58:33,920 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-12-07 00:58:33,959 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:58:33,964 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:58:33,964 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-07 00:58:34,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 2029 states, 2021 states have (on average 1.7986145472538346) internal successors, (3635), 2028 states have internal predecessors, (3635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-07 00:58:34,026 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:34,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:34,027 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:34,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:34,031 INFO L85 PathProgramCache]: Analyzing trace with hash -847729376, now seen corresponding path program 1 times [2021-12-07 00:58:34,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:34,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388841629] [2021-12-07 00:58:34,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:34,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:34,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:34,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:34,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388841629] [2021-12-07 00:58:34,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388841629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:34,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:34,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:58:34,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539476962] [2021-12-07 00:58:34,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:34,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:58:34,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:34,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:58:34,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:58:34,332 INFO L87 Difference]: Start difference. First operand has 2029 states, 2021 states have (on average 1.7986145472538346) internal successors, (3635), 2028 states have internal predecessors, (3635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:36,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:36,060 INFO L93 Difference]: Finished difference Result 3990 states and 7067 transitions. [2021-12-07 00:58:36,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:58:36,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-12-07 00:58:36,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:36,087 INFO L225 Difference]: With dead ends: 3990 [2021-12-07 00:58:36,087 INFO L226 Difference]: Without dead ends: 2653 [2021-12-07 00:58:36,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:58:36,096 INFO L933 BasicCegarLoop]: 1976 mSDtfsCounter, 12844 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12844 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 2256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:36,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12844 Valid, 2585 Invalid, 2256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-07 00:58:36,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2021-12-07 00:58:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2647. [2021-12-07 00:58:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2647 states, 2640 states have (on average 1.3321969696969698) internal successors, (3517), 2646 states have internal predecessors, (3517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:36,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 3517 transitions. [2021-12-07 00:58:36,230 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 3517 transitions. Word has length 64 [2021-12-07 00:58:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:36,231 INFO L470 AbstractCegarLoop]: Abstraction has 2647 states and 3517 transitions. [2021-12-07 00:58:36,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:36,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 3517 transitions. [2021-12-07 00:58:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-07 00:58:36,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:36,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:36,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:58:36,238 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:36,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:36,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1467352586, now seen corresponding path program 1 times [2021-12-07 00:58:36,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:36,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599780429] [2021-12-07 00:58:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:36,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:36,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:36,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599780429] [2021-12-07 00:58:36,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599780429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:36,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:36,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:58:36,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750381427] [2021-12-07 00:58:36,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:36,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:58:36,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:36,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:58:36,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:58:36,374 INFO L87 Difference]: Start difference. First operand 2647 states and 3517 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:37,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:37,423 INFO L93 Difference]: Finished difference Result 4535 states and 6097 transitions. [2021-12-07 00:58:37,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:58:37,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-12-07 00:58:37,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:37,435 INFO L225 Difference]: With dead ends: 4535 [2021-12-07 00:58:37,436 INFO L226 Difference]: Without dead ends: 2930 [2021-12-07 00:58:37,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:58:37,439 INFO L933 BasicCegarLoop]: 1082 mSDtfsCounter, 7778 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7778 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:37,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7778 Valid, 1463 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:58:37,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-12-07 00:58:37,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2917. [2021-12-07 00:58:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2910 states have (on average 1.354639175257732) internal successors, (3942), 2916 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:37,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 3942 transitions. [2021-12-07 00:58:37,525 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 3942 transitions. Word has length 65 [2021-12-07 00:58:37,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:37,525 INFO L470 AbstractCegarLoop]: Abstraction has 2917 states and 3942 transitions. [2021-12-07 00:58:37,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:37,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 3942 transitions. [2021-12-07 00:58:37,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-07 00:58:37,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:37,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:37,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:58:37,530 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:37,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:37,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1695427145, now seen corresponding path program 1 times [2021-12-07 00:58:37,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:37,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551543183] [2021-12-07 00:58:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:37,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:37,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:37,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:37,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551543183] [2021-12-07 00:58:37,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551543183] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:37,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:37,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:58:37,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937804412] [2021-12-07 00:58:37,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:37,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:58:37,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:37,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:58:37,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:58:37,609 INFO L87 Difference]: Start difference. First operand 2917 states and 3942 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:38,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:38,591 INFO L93 Difference]: Finished difference Result 6144 states and 8391 transitions. [2021-12-07 00:58:38,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:58:38,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-12-07 00:58:38,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:38,607 INFO L225 Difference]: With dead ends: 6144 [2021-12-07 00:58:38,607 INFO L226 Difference]: Without dead ends: 4033 [2021-12-07 00:58:38,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:58:38,611 INFO L933 BasicCegarLoop]: 1036 mSDtfsCounter, 7568 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7568 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:38,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7568 Valid, 1434 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:58:38,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4033 states. [2021-12-07 00:58:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4033 to 4019. [2021-12-07 00:58:38,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4019 states, 4012 states have (on average 1.3504486540378864) internal successors, (5418), 4018 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5418 transitions. [2021-12-07 00:58:38,728 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5418 transitions. Word has length 65 [2021-12-07 00:58:38,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:38,728 INFO L470 AbstractCegarLoop]: Abstraction has 4019 states and 5418 transitions. [2021-12-07 00:58:38,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:38,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5418 transitions. [2021-12-07 00:58:38,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-07 00:58:38,733 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:38,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:38,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:58:38,734 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:38,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:38,734 INFO L85 PathProgramCache]: Analyzing trace with hash -113126011, now seen corresponding path program 1 times [2021-12-07 00:58:38,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:38,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402921949] [2021-12-07 00:58:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:38,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:38,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:38,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:38,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402921949] [2021-12-07 00:58:38,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402921949] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:38,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:38,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:58:38,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067077330] [2021-12-07 00:58:38,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:38,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:58:38,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:38,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:58:38,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:58:38,860 INFO L87 Difference]: Start difference. First operand 4019 states and 5418 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:40,598 INFO L93 Difference]: Finished difference Result 4767 states and 6473 transitions. [2021-12-07 00:58:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 00:58:40,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-12-07 00:58:40,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:40,616 INFO L225 Difference]: With dead ends: 4767 [2021-12-07 00:58:40,616 INFO L226 Difference]: Without dead ends: 4762 [2021-12-07 00:58:40,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-12-07 00:58:40,619 INFO L933 BasicCegarLoop]: 1088 mSDtfsCounter, 5917 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 4480 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5917 SdHoareTripleChecker+Valid, 4523 SdHoareTripleChecker+Invalid, 4619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 4480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:40,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5917 Valid, 4523 Invalid, 4619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 4480 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-07 00:58:40,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2021-12-07 00:58:40,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 4019. [2021-12-07 00:58:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4019 states, 4012 states have (on average 1.3501994017946162) internal successors, (5417), 4018 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:40,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5417 transitions. [2021-12-07 00:58:40,760 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5417 transitions. Word has length 66 [2021-12-07 00:58:40,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:40,760 INFO L470 AbstractCegarLoop]: Abstraction has 4019 states and 5417 transitions. [2021-12-07 00:58:40,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:40,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5417 transitions. [2021-12-07 00:58:40,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-07 00:58:40,765 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:40,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:40,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:58:40,765 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:40,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:40,766 INFO L85 PathProgramCache]: Analyzing trace with hash 333187054, now seen corresponding path program 1 times [2021-12-07 00:58:40,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:40,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725470140] [2021-12-07 00:58:40,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:40,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:40,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:40,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725470140] [2021-12-07 00:58:40,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725470140] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:40,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:40,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:58:40,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334816453] [2021-12-07 00:58:40,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:40,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 00:58:40,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:40,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 00:58:40,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:58:40,900 INFO L87 Difference]: Start difference. First operand 4019 states and 5417 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:43,338 INFO L93 Difference]: Finished difference Result 8090 states and 11476 transitions. [2021-12-07 00:58:43,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-07 00:58:43,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-12-07 00:58:43,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:43,365 INFO L225 Difference]: With dead ends: 8090 [2021-12-07 00:58:43,365 INFO L226 Difference]: Without dead ends: 7273 [2021-12-07 00:58:43,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2021-12-07 00:58:43,368 INFO L933 BasicCegarLoop]: 1171 mSDtfsCounter, 11963 mSDsluCounter, 5020 mSDsCounter, 0 mSdLazyCounter, 6503 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11963 SdHoareTripleChecker+Valid, 6191 SdHoareTripleChecker+Invalid, 6605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 6503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:43,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11963 Valid, 6191 Invalid, 6605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 6503 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-07 00:58:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7273 states. [2021-12-07 00:58:43,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7273 to 4026. [2021-12-07 00:58:43,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 4019 states have (on average 1.349589450111968) internal successors, (5424), 4025 states have internal predecessors, (5424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:43,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 5424 transitions. [2021-12-07 00:58:43,558 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 5424 transitions. Word has length 66 [2021-12-07 00:58:43,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:43,559 INFO L470 AbstractCegarLoop]: Abstraction has 4026 states and 5424 transitions. [2021-12-07 00:58:43,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:43,559 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 5424 transitions. [2021-12-07 00:58:43,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-07 00:58:43,563 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:43,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:43,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:58:43,564 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:43,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:43,564 INFO L85 PathProgramCache]: Analyzing trace with hash 124822112, now seen corresponding path program 1 times [2021-12-07 00:58:43,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:43,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059429177] [2021-12-07 00:58:43,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:43,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:43,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:43,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059429177] [2021-12-07 00:58:43,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059429177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:43,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:43,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 00:58:43,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306233961] [2021-12-07 00:58:43,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:43,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 00:58:43,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:43,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 00:58:43,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:58:43,815 INFO L87 Difference]: Start difference. First operand 4026 states and 5424 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:45,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:45,785 INFO L93 Difference]: Finished difference Result 8484 states and 12177 transitions. [2021-12-07 00:58:45,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 00:58:45,786 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-12-07 00:58:45,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:45,810 INFO L225 Difference]: With dead ends: 8484 [2021-12-07 00:58:45,810 INFO L226 Difference]: Without dead ends: 7768 [2021-12-07 00:58:45,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2021-12-07 00:58:45,814 INFO L933 BasicCegarLoop]: 2336 mSDtfsCounter, 17062 mSDsluCounter, 10174 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17062 SdHoareTripleChecker+Valid, 12510 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:45,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17062 Valid, 12510 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-07 00:58:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7768 states. [2021-12-07 00:58:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7768 to 3970. [2021-12-07 00:58:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3970 states, 3964 states have (on average 1.3488900100908174) internal successors, (5347), 3969 states have internal predecessors, (5347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3970 states to 3970 states and 5347 transitions. [2021-12-07 00:58:46,019 INFO L78 Accepts]: Start accepts. Automaton has 3970 states and 5347 transitions. Word has length 67 [2021-12-07 00:58:46,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:46,019 INFO L470 AbstractCegarLoop]: Abstraction has 3970 states and 5347 transitions. [2021-12-07 00:58:46,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:46,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3970 states and 5347 transitions. [2021-12-07 00:58:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-07 00:58:46,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:46,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:46,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:58:46,023 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:46,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:46,024 INFO L85 PathProgramCache]: Analyzing trace with hash 400365220, now seen corresponding path program 1 times [2021-12-07 00:58:46,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:46,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409548135] [2021-12-07 00:58:46,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:46,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:46,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:46,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409548135] [2021-12-07 00:58:46,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409548135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:46,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:46,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:58:46,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547024369] [2021-12-07 00:58:46,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:46,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:58:46,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:46,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:58:46,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:58:46,069 INFO L87 Difference]: Start difference. First operand 3970 states and 5347 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:47,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:47,056 INFO L93 Difference]: Finished difference Result 7828 states and 10614 transitions. [2021-12-07 00:58:47,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:58:47,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-12-07 00:58:47,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:47,065 INFO L225 Difference]: With dead ends: 7828 [2021-12-07 00:58:47,065 INFO L226 Difference]: Without dead ends: 5212 [2021-12-07 00:58:47,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:58:47,069 INFO L933 BasicCegarLoop]: 883 mSDtfsCounter, 6389 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6389 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:47,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6389 Valid, 1216 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:58:47,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2021-12-07 00:58:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 5202. [2021-12-07 00:58:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5202 states, 5196 states have (on average 1.3525789068514242) internal successors, (7028), 5201 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 5202 states and 7028 transitions. [2021-12-07 00:58:47,338 INFO L78 Accepts]: Start accepts. Automaton has 5202 states and 7028 transitions. Word has length 67 [2021-12-07 00:58:47,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:47,339 INFO L470 AbstractCegarLoop]: Abstraction has 5202 states and 7028 transitions. [2021-12-07 00:58:47,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:47,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5202 states and 7028 transitions. [2021-12-07 00:58:47,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-07 00:58:47,343 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:47,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:47,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 00:58:47,343 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:47,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:47,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1973300712, now seen corresponding path program 1 times [2021-12-07 00:58:47,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:47,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488633201] [2021-12-07 00:58:47,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:47,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:47,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:47,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488633201] [2021-12-07 00:58:47,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488633201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:47,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:47,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 00:58:47,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61551900] [2021-12-07 00:58:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:47,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 00:58:47,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 00:58:47,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:58:47,590 INFO L87 Difference]: Start difference. First operand 5202 states and 7028 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:51,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:51,009 INFO L93 Difference]: Finished difference Result 15651 states and 22658 transitions. [2021-12-07 00:58:51,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-07 00:58:51,009 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-12-07 00:58:51,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:51,030 INFO L225 Difference]: With dead ends: 15651 [2021-12-07 00:58:51,030 INFO L226 Difference]: Without dead ends: 15647 [2021-12-07 00:58:51,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2021-12-07 00:58:51,034 INFO L933 BasicCegarLoop]: 1751 mSDtfsCounter, 11386 mSDsluCounter, 13929 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11386 SdHoareTripleChecker+Valid, 15680 SdHoareTripleChecker+Invalid, 3335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:51,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11386 Valid, 15680 Invalid, 3335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 3110 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-07 00:58:51,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15647 states. [2021-12-07 00:58:51,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15647 to 5198. [2021-12-07 00:58:51,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5193 states have (on average 1.3523974581166955) internal successors, (7023), 5197 states have internal predecessors, (7023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:51,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 7023 transitions. [2021-12-07 00:58:51,433 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 7023 transitions. Word has length 67 [2021-12-07 00:58:51,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:51,434 INFO L470 AbstractCegarLoop]: Abstraction has 5198 states and 7023 transitions. [2021-12-07 00:58:51,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:51,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 7023 transitions. [2021-12-07 00:58:51,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-07 00:58:51,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:51,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:51,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 00:58:51,438 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:51,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:51,438 INFO L85 PathProgramCache]: Analyzing trace with hash -495050815, now seen corresponding path program 1 times [2021-12-07 00:58:51,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:51,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606751503] [2021-12-07 00:58:51,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:51,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:51,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:51,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:51,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606751503] [2021-12-07 00:58:51,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606751503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:51,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:51,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:58:51,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975547978] [2021-12-07 00:58:51,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:51,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 00:58:51,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:51,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 00:58:51,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:58:51,577 INFO L87 Difference]: Start difference. First operand 5198 states and 7023 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:55,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:55,038 INFO L93 Difference]: Finished difference Result 11751 states and 16834 transitions. [2021-12-07 00:58:55,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 00:58:55,039 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-07 00:58:55,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:55,052 INFO L225 Difference]: With dead ends: 11751 [2021-12-07 00:58:55,052 INFO L226 Difference]: Without dead ends: 10466 [2021-12-07 00:58:55,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2021-12-07 00:58:55,055 INFO L933 BasicCegarLoop]: 1142 mSDtfsCounter, 9549 mSDsluCounter, 5143 mSDsCounter, 0 mSdLazyCounter, 5687 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9549 SdHoareTripleChecker+Valid, 6285 SdHoareTripleChecker+Invalid, 5914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 5687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:55,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9549 Valid, 6285 Invalid, 5914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 5687 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-07 00:58:55,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10466 states. [2021-12-07 00:58:55,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10466 to 5151. [2021-12-07 00:58:55,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5146 states have (on average 1.351535172949864) internal successors, (6955), 5150 states have internal predecessors, (6955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 6955 transitions. [2021-12-07 00:58:55,524 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 6955 transitions. Word has length 68 [2021-12-07 00:58:55,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:55,524 INFO L470 AbstractCegarLoop]: Abstraction has 5151 states and 6955 transitions. [2021-12-07 00:58:55,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:55,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 6955 transitions. [2021-12-07 00:58:55,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-07 00:58:55,537 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:55,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:55,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 00:58:55,537 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:55,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:55,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1711266081, now seen corresponding path program 1 times [2021-12-07 00:58:55,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:55,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235502905] [2021-12-07 00:58:55,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:55,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:55,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:55,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235502905] [2021-12-07 00:58:55,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235502905] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:55,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:55,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:58:55,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90858297] [2021-12-07 00:58:55,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:55,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:58:55,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:55,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:58:55,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:58:55,633 INFO L87 Difference]: Start difference. First operand 5151 states and 6955 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:57,851 INFO L93 Difference]: Finished difference Result 7717 states and 10583 transitions. [2021-12-07 00:58:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 00:58:57,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-12-07 00:58:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:57,860 INFO L225 Difference]: With dead ends: 7717 [2021-12-07 00:58:57,860 INFO L226 Difference]: Without dead ends: 7709 [2021-12-07 00:58:57,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-12-07 00:58:57,863 INFO L933 BasicCegarLoop]: 987 mSDtfsCounter, 8962 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 3924 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8962 SdHoareTripleChecker+Valid, 4012 SdHoareTripleChecker+Invalid, 4176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 3924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:57,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8962 Valid, 4012 Invalid, 4176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 3924 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-07 00:58:57,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7709 states. [2021-12-07 00:58:58,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7709 to 5151. [2021-12-07 00:58:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5146 states have (on average 1.3513408472600077) internal successors, (6954), 5150 states have internal predecessors, (6954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 6954 transitions. [2021-12-07 00:58:58,310 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 6954 transitions. Word has length 69 [2021-12-07 00:58:58,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:58,310 INFO L470 AbstractCegarLoop]: Abstraction has 5151 states and 6954 transitions. [2021-12-07 00:58:58,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:58:58,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 6954 transitions. [2021-12-07 00:58:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-07 00:58:58,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:58,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:58,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 00:58:58,315 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:58:58,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:58,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1460371581, now seen corresponding path program 1 times [2021-12-07 00:58:58,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:58,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909784052] [2021-12-07 00:58:58,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:58,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:58:58,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:58,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909784052] [2021-12-07 00:58:58,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909784052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:58,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:58,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:58:58,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554181747] [2021-12-07 00:58:58,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:58,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:58:58,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:58,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:58:58,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:58:58,496 INFO L87 Difference]: Start difference. First operand 5151 states and 6954 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:02,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:02,964 INFO L93 Difference]: Finished difference Result 18344 states and 26787 transitions. [2021-12-07 00:59:02,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-07 00:59:02,964 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-12-07 00:59:02,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:02,979 INFO L225 Difference]: With dead ends: 18344 [2021-12-07 00:59:02,980 INFO L226 Difference]: Without dead ends: 18340 [2021-12-07 00:59:02,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=301, Invalid=1031, Unknown=0, NotChecked=0, Total=1332 [2021-12-07 00:59:02,983 INFO L933 BasicCegarLoop]: 1749 mSDtfsCounter, 13962 mSDsluCounter, 10411 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13962 SdHoareTripleChecker+Valid, 12160 SdHoareTripleChecker+Invalid, 2661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:02,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13962 Valid, 12160 Invalid, 2661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-07 00:59:02,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18340 states. [2021-12-07 00:59:03,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18340 to 5147. [2021-12-07 00:59:03,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5143 states have (on average 1.3513513513513513) internal successors, (6950), 5146 states have internal predecessors, (6950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 6950 transitions. [2021-12-07 00:59:03,523 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 6950 transitions. Word has length 69 [2021-12-07 00:59:03,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:03,523 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 6950 transitions. [2021-12-07 00:59:03,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:03,523 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 6950 transitions. [2021-12-07 00:59:03,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-07 00:59:03,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:03,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:03,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 00:59:03,528 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:03,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:03,528 INFO L85 PathProgramCache]: Analyzing trace with hash 928751966, now seen corresponding path program 1 times [2021-12-07 00:59:03,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:03,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102062923] [2021-12-07 00:59:03,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:03,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:03,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:03,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:03,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102062923] [2021-12-07 00:59:03,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102062923] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:03,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:03,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:59:03,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921998651] [2021-12-07 00:59:03,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:03,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:59:03,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:03,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:59:03,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:59:03,607 INFO L87 Difference]: Start difference. First operand 5147 states and 6950 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:06,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:06,490 INFO L93 Difference]: Finished difference Result 10869 states and 15433 transitions. [2021-12-07 00:59:06,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:59:06,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-12-07 00:59:06,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:06,499 INFO L225 Difference]: With dead ends: 10869 [2021-12-07 00:59:06,499 INFO L226 Difference]: Without dead ends: 9616 [2021-12-07 00:59:06,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:59:06,501 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 6965 mSDsluCounter, 3187 mSDsCounter, 0 mSdLazyCounter, 4127 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6965 SdHoareTripleChecker+Valid, 4241 SdHoareTripleChecker+Invalid, 4324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 4127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:06,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6965 Valid, 4241 Invalid, 4324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 4127 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-07 00:59:06,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9616 states. [2021-12-07 00:59:07,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9616 to 5147. [2021-12-07 00:59:07,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5143 states have (on average 1.3511569123079914) internal successors, (6949), 5146 states have internal predecessors, (6949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 6949 transitions. [2021-12-07 00:59:07,031 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 6949 transitions. Word has length 70 [2021-12-07 00:59:07,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:07,031 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 6949 transitions. [2021-12-07 00:59:07,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:07,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 6949 transitions. [2021-12-07 00:59:07,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-07 00:59:07,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:07,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:07,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 00:59:07,036 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:07,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:07,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1006800076, now seen corresponding path program 1 times [2021-12-07 00:59:07,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:07,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769854341] [2021-12-07 00:59:07,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:07,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:07,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:07,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:07,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769854341] [2021-12-07 00:59:07,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769854341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:07,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:07,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-07 00:59:07,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864452948] [2021-12-07 00:59:07,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:07,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 00:59:07,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:07,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 00:59:07,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:59:07,231 INFO L87 Difference]: Start difference. First operand 5147 states and 6949 transitions. Second operand has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:14,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:14,778 INFO L93 Difference]: Finished difference Result 25955 states and 38310 transitions. [2021-12-07 00:59:14,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-12-07 00:59:14,779 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-12-07 00:59:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:14,803 INFO L225 Difference]: With dead ends: 25955 [2021-12-07 00:59:14,803 INFO L226 Difference]: Without dead ends: 24608 [2021-12-07 00:59:14,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=639, Invalid=1811, Unknown=0, NotChecked=0, Total=2450 [2021-12-07 00:59:14,810 INFO L933 BasicCegarLoop]: 1893 mSDtfsCounter, 11269 mSDsluCounter, 12310 mSDsCounter, 0 mSdLazyCounter, 2761 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11269 SdHoareTripleChecker+Valid, 14203 SdHoareTripleChecker+Invalid, 2929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:14,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11269 Valid, 14203 Invalid, 2929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2761 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-07 00:59:14,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24608 states. [2021-12-07 00:59:15,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24608 to 5157. [2021-12-07 00:59:15,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5153 states have (on average 1.3510576363283524) internal successors, (6962), 5156 states have internal predecessors, (6962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 6962 transitions. [2021-12-07 00:59:15,586 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 6962 transitions. Word has length 70 [2021-12-07 00:59:15,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:15,586 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 6962 transitions. [2021-12-07 00:59:15,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:15,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 6962 transitions. [2021-12-07 00:59:15,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-07 00:59:15,590 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:15,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:15,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 00:59:15,591 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:15,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:15,591 INFO L85 PathProgramCache]: Analyzing trace with hash 2065139775, now seen corresponding path program 1 times [2021-12-07 00:59:15,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:15,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723082684] [2021-12-07 00:59:15,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:15,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:15,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:15,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723082684] [2021-12-07 00:59:15,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723082684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:15,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:15,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:59:15,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573610018] [2021-12-07 00:59:15,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:15,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:59:15,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:15,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:59:15,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:59:15,621 INFO L87 Difference]: Start difference. First operand 5157 states and 6962 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:16,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:16,401 INFO L93 Difference]: Finished difference Result 8011 states and 11108 transitions. [2021-12-07 00:59:16,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:59:16,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-12-07 00:59:16,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:16,406 INFO L225 Difference]: With dead ends: 8011 [2021-12-07 00:59:16,406 INFO L226 Difference]: Without dead ends: 4983 [2021-12-07 00:59:16,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:59:16,409 INFO L933 BasicCegarLoop]: 1328 mSDtfsCounter, 1276 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:16,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1276 Valid, 1812 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:59:16,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4983 states. [2021-12-07 00:59:17,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4983 to 4979. [2021-12-07 00:59:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4979 states, 4976 states have (on average 1.3764067524115755) internal successors, (6849), 4978 states have internal predecessors, (6849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 6849 transitions. [2021-12-07 00:59:17,133 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 6849 transitions. Word has length 70 [2021-12-07 00:59:17,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:17,133 INFO L470 AbstractCegarLoop]: Abstraction has 4979 states and 6849 transitions. [2021-12-07 00:59:17,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:17,133 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 6849 transitions. [2021-12-07 00:59:17,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:59:17,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:17,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:17,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-07 00:59:17,137 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:17,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:17,137 INFO L85 PathProgramCache]: Analyzing trace with hash -366010450, now seen corresponding path program 1 times [2021-12-07 00:59:17,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:17,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764722177] [2021-12-07 00:59:17,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:17,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:17,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:17,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:17,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764722177] [2021-12-07 00:59:17,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764722177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:17,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:17,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:59:17,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334930459] [2021-12-07 00:59:17,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:17,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 00:59:17,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:17,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 00:59:17,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:59:17,276 INFO L87 Difference]: Start difference. First operand 4979 states and 6849 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:20,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:20,127 INFO L93 Difference]: Finished difference Result 8896 states and 12758 transitions. [2021-12-07 00:59:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-07 00:59:20,128 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:59:20,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:20,134 INFO L225 Difference]: With dead ends: 8896 [2021-12-07 00:59:20,134 INFO L226 Difference]: Without dead ends: 7076 [2021-12-07 00:59:20,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=563, Unknown=0, NotChecked=0, Total=756 [2021-12-07 00:59:20,137 INFO L933 BasicCegarLoop]: 797 mSDtfsCounter, 7956 mSDsluCounter, 3679 mSDsCounter, 0 mSdLazyCounter, 4081 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7956 SdHoareTripleChecker+Valid, 4476 SdHoareTripleChecker+Invalid, 4281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 4081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:20,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7956 Valid, 4476 Invalid, 4281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 4081 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-07 00:59:20,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7076 states. [2021-12-07 00:59:20,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7076 to 4987. [2021-12-07 00:59:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4984 states have (on average 1.3766051364365972) internal successors, (6861), 4986 states have internal predecessors, (6861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:20,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 6861 transitions. [2021-12-07 00:59:20,889 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 6861 transitions. Word has length 71 [2021-12-07 00:59:20,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:20,889 INFO L470 AbstractCegarLoop]: Abstraction has 4987 states and 6861 transitions. [2021-12-07 00:59:20,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:20,889 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 6861 transitions. [2021-12-07 00:59:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:59:20,893 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:20,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:20,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-07 00:59:20,893 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:20,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:20,894 INFO L85 PathProgramCache]: Analyzing trace with hash -331108225, now seen corresponding path program 1 times [2021-12-07 00:59:20,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:20,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021910512] [2021-12-07 00:59:20,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:20,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:20,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:20,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:20,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021910512] [2021-12-07 00:59:20,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021910512] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:20,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:20,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:59:20,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88776048] [2021-12-07 00:59:20,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:20,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 00:59:20,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:20,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 00:59:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:59:20,993 INFO L87 Difference]: Start difference. First operand 4987 states and 6861 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:25,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:25,044 INFO L93 Difference]: Finished difference Result 14071 states and 20570 transitions. [2021-12-07 00:59:25,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 00:59:25,044 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:59:25,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:25,054 INFO L225 Difference]: With dead ends: 14071 [2021-12-07 00:59:25,054 INFO L226 Difference]: Without dead ends: 12187 [2021-12-07 00:59:25,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2021-12-07 00:59:25,058 INFO L933 BasicCegarLoop]: 942 mSDtfsCounter, 4880 mSDsluCounter, 3378 mSDsCounter, 0 mSdLazyCounter, 3834 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4880 SdHoareTripleChecker+Valid, 4320 SdHoareTripleChecker+Invalid, 3950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 3834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:25,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4880 Valid, 4320 Invalid, 3950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 3834 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:59:25,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12187 states. [2021-12-07 00:59:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12187 to 4979. [2021-12-07 00:59:25,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4979 states, 4976 states have (on average 1.3762057877813505) internal successors, (6848), 4978 states have internal predecessors, (6848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:25,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 6848 transitions. [2021-12-07 00:59:25,868 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 6848 transitions. Word has length 71 [2021-12-07 00:59:25,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:25,868 INFO L470 AbstractCegarLoop]: Abstraction has 4979 states and 6848 transitions. [2021-12-07 00:59:25,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:25,869 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 6848 transitions. [2021-12-07 00:59:25,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:59:25,873 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:25,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:25,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 00:59:25,873 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:25,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:25,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2088289519, now seen corresponding path program 1 times [2021-12-07 00:59:25,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:25,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638843838] [2021-12-07 00:59:25,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:25,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:25,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:25,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638843838] [2021-12-07 00:59:25,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638843838] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:25,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:25,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:59:25,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717987352] [2021-12-07 00:59:25,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:25,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:59:25,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:25,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:59:25,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:59:25,907 INFO L87 Difference]: Start difference. First operand 4979 states and 6848 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:26,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:26,936 INFO L93 Difference]: Finished difference Result 7821 states and 11251 transitions. [2021-12-07 00:59:26,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:59:26,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:59:26,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:26,942 INFO L225 Difference]: With dead ends: 7821 [2021-12-07 00:59:26,942 INFO L226 Difference]: Without dead ends: 5564 [2021-12-07 00:59:26,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:59:26,945 INFO L933 BasicCegarLoop]: 1368 mSDtfsCounter, 782 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:26,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [782 Valid, 1988 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:59:26,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5564 states. [2021-12-07 00:59:27,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5564 to 4533. [2021-12-07 00:59:27,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4533 states, 4530 states have (on average 1.398233995584989) internal successors, (6334), 4532 states have internal predecessors, (6334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4533 states to 4533 states and 6334 transitions. [2021-12-07 00:59:27,747 INFO L78 Accepts]: Start accepts. Automaton has 4533 states and 6334 transitions. Word has length 71 [2021-12-07 00:59:27,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:27,747 INFO L470 AbstractCegarLoop]: Abstraction has 4533 states and 6334 transitions. [2021-12-07 00:59:27,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:27,747 INFO L276 IsEmpty]: Start isEmpty. Operand 4533 states and 6334 transitions. [2021-12-07 00:59:27,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:59:27,750 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:27,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:27,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-07 00:59:27,750 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:27,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:27,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1698940947, now seen corresponding path program 1 times [2021-12-07 00:59:27,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:27,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635959882] [2021-12-07 00:59:27,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:27,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:27,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:27,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635959882] [2021-12-07 00:59:27,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635959882] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:27,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:27,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 00:59:27,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408546570] [2021-12-07 00:59:27,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:27,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 00:59:27,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:27,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 00:59:27,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:59:27,901 INFO L87 Difference]: Start difference. First operand 4533 states and 6334 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:33,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:33,177 INFO L93 Difference]: Finished difference Result 11569 states and 16669 transitions. [2021-12-07 00:59:33,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-07 00:59:33,178 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:59:33,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:33,187 INFO L225 Difference]: With dead ends: 11569 [2021-12-07 00:59:33,187 INFO L226 Difference]: Without dead ends: 10883 [2021-12-07 00:59:33,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1007, Unknown=0, NotChecked=0, Total=1332 [2021-12-07 00:59:33,189 INFO L933 BasicCegarLoop]: 919 mSDtfsCounter, 7006 mSDsluCounter, 5820 mSDsCounter, 0 mSdLazyCounter, 6192 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7006 SdHoareTripleChecker+Valid, 6739 SdHoareTripleChecker+Invalid, 6367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 6192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:33,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7006 Valid, 6739 Invalid, 6367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 6192 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-07 00:59:33,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-12-07 00:59:34,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 4533. [2021-12-07 00:59:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4533 states, 4530 states have (on average 1.397792494481236) internal successors, (6332), 4532 states have internal predecessors, (6332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:34,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4533 states to 4533 states and 6332 transitions. [2021-12-07 00:59:34,075 INFO L78 Accepts]: Start accepts. Automaton has 4533 states and 6332 transitions. Word has length 71 [2021-12-07 00:59:34,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:34,075 INFO L470 AbstractCegarLoop]: Abstraction has 4533 states and 6332 transitions. [2021-12-07 00:59:34,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:34,075 INFO L276 IsEmpty]: Start isEmpty. Operand 4533 states and 6332 transitions. [2021-12-07 00:59:34,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:59:34,078 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:34,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:34,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 00:59:34,078 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:34,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:34,078 INFO L85 PathProgramCache]: Analyzing trace with hash -55423323, now seen corresponding path program 1 times [2021-12-07 00:59:34,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:34,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48476498] [2021-12-07 00:59:34,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:34,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:34,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:34,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:34,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48476498] [2021-12-07 00:59:34,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48476498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:34,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:34,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:59:34,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136480967] [2021-12-07 00:59:34,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:34,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 00:59:34,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:34,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 00:59:34,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:59:34,190 INFO L87 Difference]: Start difference. First operand 4533 states and 6332 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:38,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:38,335 INFO L93 Difference]: Finished difference Result 9310 states and 13190 transitions. [2021-12-07 00:59:38,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-07 00:59:38,335 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:59:38,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:38,342 INFO L225 Difference]: With dead ends: 9310 [2021-12-07 00:59:38,342 INFO L226 Difference]: Without dead ends: 8585 [2021-12-07 00:59:38,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2021-12-07 00:59:38,345 INFO L933 BasicCegarLoop]: 746 mSDtfsCounter, 7815 mSDsluCounter, 3733 mSDsCounter, 0 mSdLazyCounter, 4196 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7815 SdHoareTripleChecker+Valid, 4479 SdHoareTripleChecker+Invalid, 4268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:38,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7815 Valid, 4479 Invalid, 4268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4196 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-07 00:59:38,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8585 states. [2021-12-07 00:59:39,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8585 to 4540. [2021-12-07 00:59:39,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4540 states, 4537 states have (on average 1.397178752479612) internal successors, (6339), 4539 states have internal predecessors, (6339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:39,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 4540 states and 6339 transitions. [2021-12-07 00:59:39,221 INFO L78 Accepts]: Start accepts. Automaton has 4540 states and 6339 transitions. Word has length 71 [2021-12-07 00:59:39,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:39,221 INFO L470 AbstractCegarLoop]: Abstraction has 4540 states and 6339 transitions. [2021-12-07 00:59:39,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4540 states and 6339 transitions. [2021-12-07 00:59:39,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:59:39,224 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:39,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:39,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-07 00:59:39,224 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:39,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:39,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1023830530, now seen corresponding path program 1 times [2021-12-07 00:59:39,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:39,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930344275] [2021-12-07 00:59:39,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:39,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:39,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:39,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:39,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930344275] [2021-12-07 00:59:39,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930344275] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:39,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:39,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:59:39,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634062383] [2021-12-07 00:59:39,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:39,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:59:39,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:39,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:59:39,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:59:39,253 INFO L87 Difference]: Start difference. First operand 4540 states and 6339 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:40,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:40,556 INFO L93 Difference]: Finished difference Result 9417 states and 13417 transitions. [2021-12-07 00:59:40,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:59:40,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:59:40,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:40,561 INFO L225 Difference]: With dead ends: 9417 [2021-12-07 00:59:40,561 INFO L226 Difference]: Without dead ends: 5567 [2021-12-07 00:59:40,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:59:40,565 INFO L933 BasicCegarLoop]: 1187 mSDtfsCounter, 1173 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:40,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 1540 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:59:40,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5567 states. [2021-12-07 00:59:41,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5567 to 5563. [2021-12-07 00:59:41,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 5561 states have (on average 1.4144937960798418) internal successors, (7866), 5562 states have internal predecessors, (7866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:41,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 7866 transitions. [2021-12-07 00:59:41,774 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 7866 transitions. Word has length 71 [2021-12-07 00:59:41,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:41,774 INFO L470 AbstractCegarLoop]: Abstraction has 5563 states and 7866 transitions. [2021-12-07 00:59:41,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:41,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 7866 transitions. [2021-12-07 00:59:41,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-07 00:59:41,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:41,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:41,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 00:59:41,778 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash 59235412, now seen corresponding path program 1 times [2021-12-07 00:59:41,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:41,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643971099] [2021-12-07 00:59:41,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:41,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:41,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:41,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643971099] [2021-12-07 00:59:41,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643971099] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:41,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:41,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:59:41,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010308914] [2021-12-07 00:59:41,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:41,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:59:41,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:41,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:59:41,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:59:41,809 INFO L87 Difference]: Start difference. First operand 5563 states and 7866 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:43,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:43,917 INFO L93 Difference]: Finished difference Result 12019 states and 17722 transitions. [2021-12-07 00:59:43,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:59:43,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-12-07 00:59:43,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:43,925 INFO L225 Difference]: With dead ends: 12019 [2021-12-07 00:59:43,925 INFO L226 Difference]: Without dead ends: 8114 [2021-12-07 00:59:43,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:59:43,929 INFO L933 BasicCegarLoop]: 1298 mSDtfsCounter, 741 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:43,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 1847 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:59:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8114 states. [2021-12-07 00:59:45,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8114 to 8112. [2021-12-07 00:59:46,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8112 states, 8110 states have (on average 1.447225647348952) internal successors, (11737), 8111 states have internal predecessors, (11737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:46,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8112 states to 8112 states and 11737 transitions. [2021-12-07 00:59:46,009 INFO L78 Accepts]: Start accepts. Automaton has 8112 states and 11737 transitions. Word has length 72 [2021-12-07 00:59:46,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:46,009 INFO L470 AbstractCegarLoop]: Abstraction has 8112 states and 11737 transitions. [2021-12-07 00:59:46,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:46,009 INFO L276 IsEmpty]: Start isEmpty. Operand 8112 states and 11737 transitions. [2021-12-07 00:59:46,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-07 00:59:46,012 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:46,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:46,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-07 00:59:46,013 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:46,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:46,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1396973598, now seen corresponding path program 1 times [2021-12-07 00:59:46,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:46,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92822631] [2021-12-07 00:59:46,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:46,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:46,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:46,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92822631] [2021-12-07 00:59:46,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92822631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:46,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:46,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:59:46,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151767956] [2021-12-07 00:59:46,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:46,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:59:46,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:46,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:59:46,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:59:46,045 INFO L87 Difference]: Start difference. First operand 8112 states and 11737 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:49,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:49,877 INFO L93 Difference]: Finished difference Result 20531 states and 30308 transitions. [2021-12-07 00:59:49,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:59:49,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-12-07 00:59:49,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:49,890 INFO L225 Difference]: With dead ends: 20531 [2021-12-07 00:59:49,890 INFO L226 Difference]: Without dead ends: 13900 [2021-12-07 00:59:49,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:59:49,896 INFO L933 BasicCegarLoop]: 1375 mSDtfsCounter, 732 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 2367 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:49,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 2367 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:59:49,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13900 states. [2021-12-07 00:59:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13900 to 13898. [2021-12-07 00:59:53,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13898 states, 13896 states have (on average 1.4481865284974094) internal successors, (20124), 13897 states have internal predecessors, (20124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13898 states to 13898 states and 20124 transitions. [2021-12-07 00:59:53,769 INFO L78 Accepts]: Start accepts. Automaton has 13898 states and 20124 transitions. Word has length 72 [2021-12-07 00:59:53,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:53,769 INFO L470 AbstractCegarLoop]: Abstraction has 13898 states and 20124 transitions. [2021-12-07 00:59:53,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:59:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 13898 states and 20124 transitions. [2021-12-07 00:59:53,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-07 00:59:53,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:53,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:53,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-07 00:59:53,772 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 00:59:53,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:53,772 INFO L85 PathProgramCache]: Analyzing trace with hash -449647948, now seen corresponding path program 1 times [2021-12-07 00:59:53,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:53,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577853743] [2021-12-07 00:59:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:53,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:53,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:59:53,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:53,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577853743] [2021-12-07 00:59:53,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577853743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:53,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:53,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:59:53,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169937158] [2021-12-07 00:59:53,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:53,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:59:53,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:53,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:59:53,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:59:53,854 INFO L87 Difference]: Start difference. First operand 13898 states and 20124 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:00,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:00,282 INFO L93 Difference]: Finished difference Result 18261 states and 26279 transitions. [2021-12-07 01:00:00,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:00:00,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-12-07 01:00:00,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:00,299 INFO L225 Difference]: With dead ends: 18261 [2021-12-07 01:00:00,299 INFO L226 Difference]: Without dead ends: 18057 [2021-12-07 01:00:00,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 01:00:00,303 INFO L933 BasicCegarLoop]: 779 mSDtfsCounter, 4704 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 2716 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4704 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 2716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:00,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4704 Valid, 3141 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 2716 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 01:00:00,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18057 states. [2021-12-07 01:00:04,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18057 to 13898. [2021-12-07 01:00:04,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13898 states, 13896 states have (on average 1.4481145653425447) internal successors, (20123), 13897 states have internal predecessors, (20123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13898 states to 13898 states and 20123 transitions. [2021-12-07 01:00:04,146 INFO L78 Accepts]: Start accepts. Automaton has 13898 states and 20123 transitions. Word has length 73 [2021-12-07 01:00:04,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:04,146 INFO L470 AbstractCegarLoop]: Abstraction has 13898 states and 20123 transitions. [2021-12-07 01:00:04,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:04,146 INFO L276 IsEmpty]: Start isEmpty. Operand 13898 states and 20123 transitions. [2021-12-07 01:00:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-07 01:00:04,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:04,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:04,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-07 01:00:04,149 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:00:04,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:04,149 INFO L85 PathProgramCache]: Analyzing trace with hash -336627394, now seen corresponding path program 1 times [2021-12-07 01:00:04,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:00:04,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162796999] [2021-12-07 01:00:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:04,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:00:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:04,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:00:04,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:00:04,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162796999] [2021-12-07 01:00:04,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162796999] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:00:04,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:00:04,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:00:04,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235340181] [2021-12-07 01:00:04,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:04,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:00:04,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:00:04,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:00:04,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:00:04,175 INFO L87 Difference]: Start difference. First operand 13898 states and 20123 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:08,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:08,798 INFO L93 Difference]: Finished difference Result 28958 states and 42477 transitions. [2021-12-07 01:00:08,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:00:08,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-12-07 01:00:08,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:08,814 INFO L225 Difference]: With dead ends: 28958 [2021-12-07 01:00:08,814 INFO L226 Difference]: Without dead ends: 16062 [2021-12-07 01:00:08,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:00:08,825 INFO L933 BasicCegarLoop]: 1210 mSDtfsCounter, 1075 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:08,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1075 Valid, 1611 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:00:08,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16062 states. [2021-12-07 01:00:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16062 to 12908. [2021-12-07 01:00:12,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12908 states, 12906 states have (on average 1.4616457461645747) internal successors, (18864), 12907 states have internal predecessors, (18864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:12,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12908 states to 12908 states and 18864 transitions. [2021-12-07 01:00:12,671 INFO L78 Accepts]: Start accepts. Automaton has 12908 states and 18864 transitions. Word has length 73 [2021-12-07 01:00:12,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:12,672 INFO L470 AbstractCegarLoop]: Abstraction has 12908 states and 18864 transitions. [2021-12-07 01:00:12,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:12,672 INFO L276 IsEmpty]: Start isEmpty. Operand 12908 states and 18864 transitions. [2021-12-07 01:00:12,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 01:00:12,674 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:12,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:12,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-07 01:00:12,674 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:00:12,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:12,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1606655343, now seen corresponding path program 1 times [2021-12-07 01:00:12,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:00:12,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471594351] [2021-12-07 01:00:12,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:12,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:00:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:00:12,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:00:12,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471594351] [2021-12-07 01:00:12,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471594351] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:00:12,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:00:12,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:00:12,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012015102] [2021-12-07 01:00:12,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:12,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:00:12,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:00:12,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:00:12,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:00:12,733 INFO L87 Difference]: Start difference. First operand 12908 states and 18864 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:18,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:18,783 INFO L93 Difference]: Finished difference Result 16991 states and 24663 transitions. [2021-12-07 01:00:18,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:00:18,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 01:00:18,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:18,798 INFO L225 Difference]: With dead ends: 16991 [2021-12-07 01:00:18,798 INFO L226 Difference]: Without dead ends: 16790 [2021-12-07 01:00:18,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 01:00:18,802 INFO L933 BasicCegarLoop]: 686 mSDtfsCounter, 4925 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 2477 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4925 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 2477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:18,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4925 Valid, 2855 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 2477 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 01:00:18,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16790 states. [2021-12-07 01:00:22,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16790 to 12908. [2021-12-07 01:00:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12908 states, 12906 states have (on average 1.461568262823493) internal successors, (18863), 12907 states have internal predecessors, (18863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12908 states to 12908 states and 18863 transitions. [2021-12-07 01:00:22,498 INFO L78 Accepts]: Start accepts. Automaton has 12908 states and 18863 transitions. Word has length 74 [2021-12-07 01:00:22,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:22,499 INFO L470 AbstractCegarLoop]: Abstraction has 12908 states and 18863 transitions. [2021-12-07 01:00:22,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 12908 states and 18863 transitions. [2021-12-07 01:00:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 01:00:22,500 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:22,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:22,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-07 01:00:22,501 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:00:22,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash 874893139, now seen corresponding path program 1 times [2021-12-07 01:00:22,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:00:22,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129760579] [2021-12-07 01:00:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:22,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:00:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:00:22,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:00:22,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129760579] [2021-12-07 01:00:22,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129760579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:00:22,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:00:22,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:00:22,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990348206] [2021-12-07 01:00:22,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:22,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:00:22,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:00:22,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:00:22,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:00:22,572 INFO L87 Difference]: Start difference. First operand 12908 states and 18863 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:28,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:28,561 INFO L93 Difference]: Finished difference Result 16983 states and 24635 transitions. [2021-12-07 01:00:28,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:00:28,562 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 01:00:28,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:28,576 INFO L225 Difference]: With dead ends: 16983 [2021-12-07 01:00:28,576 INFO L226 Difference]: Without dead ends: 16763 [2021-12-07 01:00:28,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 01:00:28,579 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 5646 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 2653 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5646 SdHoareTripleChecker+Valid, 2986 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:28,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5646 Valid, 2986 Invalid, 2796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 2653 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 01:00:28,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16763 states. [2021-12-07 01:00:32,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16763 to 12908. [2021-12-07 01:00:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12908 states, 12906 states have (on average 1.4614907794824112) internal successors, (18862), 12907 states have internal predecessors, (18862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:32,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12908 states to 12908 states and 18862 transitions. [2021-12-07 01:00:32,258 INFO L78 Accepts]: Start accepts. Automaton has 12908 states and 18862 transitions. Word has length 74 [2021-12-07 01:00:32,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:32,258 INFO L470 AbstractCegarLoop]: Abstraction has 12908 states and 18862 transitions. [2021-12-07 01:00:32,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:32,259 INFO L276 IsEmpty]: Start isEmpty. Operand 12908 states and 18862 transitions. [2021-12-07 01:00:32,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 01:00:32,260 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:32,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:32,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-07 01:00:32,261 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:00:32,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:32,261 INFO L85 PathProgramCache]: Analyzing trace with hash 18726279, now seen corresponding path program 1 times [2021-12-07 01:00:32,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:00:32,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262028775] [2021-12-07 01:00:32,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:32,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:00:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:00:32,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:00:32,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262028775] [2021-12-07 01:00:32,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262028775] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:00:32,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:00:32,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:00:32,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400437392] [2021-12-07 01:00:32,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:32,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:00:32,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:00:32,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:00:32,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:00:32,317 INFO L87 Difference]: Start difference. First operand 12908 states and 18862 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:38,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:38,313 INFO L93 Difference]: Finished difference Result 16991 states and 24661 transitions. [2021-12-07 01:00:38,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:00:38,314 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 01:00:38,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:38,329 INFO L225 Difference]: With dead ends: 16991 [2021-12-07 01:00:38,329 INFO L226 Difference]: Without dead ends: 16790 [2021-12-07 01:00:38,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 01:00:38,332 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 4456 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4456 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:38,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4456 Valid, 2895 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 01:00:38,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16790 states. [2021-12-07 01:00:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16790 to 12908. [2021-12-07 01:00:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12908 states, 12906 states have (on average 1.4614132961413295) internal successors, (18861), 12907 states have internal predecessors, (18861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12908 states to 12908 states and 18861 transitions. [2021-12-07 01:00:42,045 INFO L78 Accepts]: Start accepts. Automaton has 12908 states and 18861 transitions. Word has length 74 [2021-12-07 01:00:42,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:42,045 INFO L470 AbstractCegarLoop]: Abstraction has 12908 states and 18861 transitions. [2021-12-07 01:00:42,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:42,046 INFO L276 IsEmpty]: Start isEmpty. Operand 12908 states and 18861 transitions. [2021-12-07 01:00:42,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 01:00:42,047 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:42,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:42,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-07 01:00:42,048 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:00:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:42,048 INFO L85 PathProgramCache]: Analyzing trace with hash 53628504, now seen corresponding path program 1 times [2021-12-07 01:00:42,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:00:42,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821064406] [2021-12-07 01:00:42,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:42,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:00:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:42,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:00:42,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:00:42,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821064406] [2021-12-07 01:00:42,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821064406] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:00:42,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:00:42,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:00:42,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043119293] [2021-12-07 01:00:42,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:42,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 01:00:42,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:00:42,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 01:00:42,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:00:42,154 INFO L87 Difference]: Start difference. First operand 12908 states and 18861 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:00:59,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:59,085 INFO L93 Difference]: Finished difference Result 45567 states and 67130 transitions. [2021-12-07 01:00:59,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-07 01:00:59,086 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 01:00:59,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:59,138 INFO L225 Difference]: With dead ends: 45567 [2021-12-07 01:00:59,138 INFO L226 Difference]: Without dead ends: 45347 [2021-12-07 01:00:59,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=367, Invalid=1039, Unknown=0, NotChecked=0, Total=1406 [2021-12-07 01:00:59,148 INFO L933 BasicCegarLoop]: 831 mSDtfsCounter, 8266 mSDsluCounter, 3605 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8266 SdHoareTripleChecker+Valid, 4436 SdHoareTripleChecker+Invalid, 4813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 752 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:59,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8266 Valid, 4436 Invalid, 4813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [752 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-07 01:00:59,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45347 states. [2021-12-07 01:01:03,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45347 to 12912. [2021-12-07 01:01:03,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12912 states, 12910 states have (on average 1.4612703330751355) internal successors, (18865), 12911 states have internal predecessors, (18865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:03,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12912 states to 12912 states and 18865 transitions. [2021-12-07 01:01:03,296 INFO L78 Accepts]: Start accepts. Automaton has 12912 states and 18865 transitions. Word has length 74 [2021-12-07 01:01:03,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:03,296 INFO L470 AbstractCegarLoop]: Abstraction has 12912 states and 18865 transitions. [2021-12-07 01:01:03,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:03,296 INFO L276 IsEmpty]: Start isEmpty. Operand 12912 states and 18865 transitions. [2021-12-07 01:01:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 01:01:03,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:03,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:03,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-07 01:01:03,298 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:01:03,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:03,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1767617348, now seen corresponding path program 1 times [2021-12-07 01:01:03,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:01:03,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319704075] [2021-12-07 01:01:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:01:03,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:01:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:03,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:01:03,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:01:03,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319704075] [2021-12-07 01:01:03,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319704075] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:01:03,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:01:03,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:01:03,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369373021] [2021-12-07 01:01:03,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:01:03,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:01:03,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:01:03,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:01:03,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:01:03,330 INFO L87 Difference]: Start difference. First operand 12912 states and 18865 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:09,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:01:09,213 INFO L93 Difference]: Finished difference Result 30454 states and 45156 transitions. [2021-12-07 01:01:09,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:01:09,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 01:01:09,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:01:09,232 INFO L225 Difference]: With dead ends: 30454 [2021-12-07 01:01:09,232 INFO L226 Difference]: Without dead ends: 18869 [2021-12-07 01:01:09,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:01:09,243 INFO L933 BasicCegarLoop]: 1232 mSDtfsCounter, 720 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:01:09,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 1710 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:01:09,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18869 states. [2021-12-07 01:01:13,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18869 to 15143. [2021-12-07 01:01:13,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15143 states, 15141 states have (on average 1.4559804504326002) internal successors, (22045), 15142 states have internal predecessors, (22045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15143 states to 15143 states and 22045 transitions. [2021-12-07 01:01:13,866 INFO L78 Accepts]: Start accepts. Automaton has 15143 states and 22045 transitions. Word has length 74 [2021-12-07 01:01:13,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:13,866 INFO L470 AbstractCegarLoop]: Abstraction has 15143 states and 22045 transitions. [2021-12-07 01:01:13,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:13,866 INFO L276 IsEmpty]: Start isEmpty. Operand 15143 states and 22045 transitions. [2021-12-07 01:01:13,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 01:01:13,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:13,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:13,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-07 01:01:13,868 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:01:13,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:13,868 INFO L85 PathProgramCache]: Analyzing trace with hash 548991209, now seen corresponding path program 1 times [2021-12-07 01:01:13,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:01:13,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866441409] [2021-12-07 01:01:13,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:01:13,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:01:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:13,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:01:13,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:01:13,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866441409] [2021-12-07 01:01:13,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866441409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:01:13,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:01:13,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:01:13,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186736156] [2021-12-07 01:01:13,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:01:13,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:01:13,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:01:13,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:01:13,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:01:13,929 INFO L87 Difference]: Start difference. First operand 15143 states and 22045 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:21,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:01:21,364 INFO L93 Difference]: Finished difference Result 19474 states and 28131 transitions. [2021-12-07 01:01:21,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:01:21,365 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 01:01:21,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:01:21,383 INFO L225 Difference]: With dead ends: 19474 [2021-12-07 01:01:21,383 INFO L226 Difference]: Without dead ends: 19405 [2021-12-07 01:01:21,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 01:01:21,387 INFO L933 BasicCegarLoop]: 668 mSDtfsCounter, 5796 mSDsluCounter, 2111 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5796 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:01:21,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5796 Valid, 2779 Invalid, 2648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 01:01:21,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19405 states. [2021-12-07 01:01:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19405 to 15138. [2021-12-07 01:01:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15138 states, 15136 states have (on average 1.4558668076109937) internal successors, (22036), 15137 states have internal predecessors, (22036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 22036 transitions. [2021-12-07 01:01:26,099 INFO L78 Accepts]: Start accepts. Automaton has 15138 states and 22036 transitions. Word has length 74 [2021-12-07 01:01:26,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:26,099 INFO L470 AbstractCegarLoop]: Abstraction has 15138 states and 22036 transitions. [2021-12-07 01:01:26,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 15138 states and 22036 transitions. [2021-12-07 01:01:26,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-07 01:01:26,101 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:26,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:26,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-07 01:01:26,101 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:01:26,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:26,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1854565700, now seen corresponding path program 1 times [2021-12-07 01:01:26,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:01:26,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092869807] [2021-12-07 01:01:26,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:01:26,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:01:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:26,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:01:26,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:01:26,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092869807] [2021-12-07 01:01:26,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092869807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:01:26,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:01:26,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:01:26,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845356237] [2021-12-07 01:01:26,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:01:26,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:01:26,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:01:26,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:01:26,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:01:26,162 INFO L87 Difference]: Start difference. First operand 15138 states and 22036 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:33,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:01:33,423 INFO L93 Difference]: Finished difference Result 19485 states and 28129 transitions. [2021-12-07 01:01:33,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:01:33,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-12-07 01:01:33,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:01:33,442 INFO L225 Difference]: With dead ends: 19485 [2021-12-07 01:01:33,442 INFO L226 Difference]: Without dead ends: 19409 [2021-12-07 01:01:33,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 01:01:33,446 INFO L933 BasicCegarLoop]: 744 mSDtfsCounter, 5472 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5472 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:01:33,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5472 Valid, 2969 Invalid, 2851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 2709 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 01:01:33,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19409 states. [2021-12-07 01:01:38,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19409 to 15134. [2021-12-07 01:01:38,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15134 states, 15132 states have (on average 1.4559212265397832) internal successors, (22031), 15133 states have internal predecessors, (22031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:38,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15134 states to 15134 states and 22031 transitions. [2021-12-07 01:01:38,180 INFO L78 Accepts]: Start accepts. Automaton has 15134 states and 22031 transitions. Word has length 75 [2021-12-07 01:01:38,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:38,180 INFO L470 AbstractCegarLoop]: Abstraction has 15134 states and 22031 transitions. [2021-12-07 01:01:38,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:38,180 INFO L276 IsEmpty]: Start isEmpty. Operand 15134 states and 22031 transitions. [2021-12-07 01:01:38,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-07 01:01:38,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:38,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:38,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-07 01:01:38,182 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:01:38,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:38,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1653694593, now seen corresponding path program 1 times [2021-12-07 01:01:38,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:01:38,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859566783] [2021-12-07 01:01:38,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:01:38,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:01:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:38,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:01:38,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:01:38,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859566783] [2021-12-07 01:01:38,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859566783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:01:38,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:01:38,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:01:38,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363525287] [2021-12-07 01:01:38,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:01:38,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:01:38,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:01:38,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:01:38,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:01:38,435 INFO L87 Difference]: Start difference. First operand 15134 states and 22031 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:48,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:01:48,944 INFO L93 Difference]: Finished difference Result 26763 states and 38916 transitions. [2021-12-07 01:01:48,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 01:01:48,945 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-12-07 01:01:48,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:01:48,972 INFO L225 Difference]: With dead ends: 26763 [2021-12-07 01:01:48,972 INFO L226 Difference]: Without dead ends: 26671 [2021-12-07 01:01:48,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2021-12-07 01:01:48,977 INFO L933 BasicCegarLoop]: 1341 mSDtfsCounter, 7293 mSDsluCounter, 5477 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7293 SdHoareTripleChecker+Valid, 6818 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:01:48,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7293 Valid, 6818 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 01:01:48,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26671 states. [2021-12-07 01:01:53,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26671 to 15106. [2021-12-07 01:01:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15106 states, 15105 states have (on average 1.456007944389275) internal successors, (21993), 15105 states have internal predecessors, (21993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15106 states to 15106 states and 21993 transitions. [2021-12-07 01:01:53,959 INFO L78 Accepts]: Start accepts. Automaton has 15106 states and 21993 transitions. Word has length 76 [2021-12-07 01:01:53,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:53,960 INFO L470 AbstractCegarLoop]: Abstraction has 15106 states and 21993 transitions. [2021-12-07 01:01:53,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:01:53,960 INFO L276 IsEmpty]: Start isEmpty. Operand 15106 states and 21993 transitions. [2021-12-07 01:01:53,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-07 01:01:53,962 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:53,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:53,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-07 01:01:53,962 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:01:53,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:53,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1319372712, now seen corresponding path program 1 times [2021-12-07 01:01:53,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:01:53,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709744923] [2021-12-07 01:01:53,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:01:53,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:01:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:54,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:01:54,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:01:54,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709744923] [2021-12-07 01:01:54,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709744923] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:01:54,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:01:54,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:01:54,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150170225] [2021-12-07 01:01:54,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:01:54,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:01:54,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:01:54,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:01:54,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:01:54,001 INFO L87 Difference]: Start difference. First operand 15106 states and 21993 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:02:08,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:02:08,979 INFO L93 Difference]: Finished difference Result 57938 states and 85076 transitions. [2021-12-07 01:02:08,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:02:08,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-12-07 01:02:08,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:02:09,029 INFO L225 Difference]: With dead ends: 57938 [2021-12-07 01:02:09,029 INFO L226 Difference]: Without dead ends: 43984 [2021-12-07 01:02:09,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:02:09,043 INFO L933 BasicCegarLoop]: 1116 mSDtfsCounter, 3797 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3797 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:02:09,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3797 Valid, 2501 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:02:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43984 states. [2021-12-07 01:02:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43984 to 28308. [2021-12-07 01:02:18,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28308 states, 28307 states have (on average 1.4482283534108171) internal successors, (40995), 28307 states have internal predecessors, (40995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:02:18,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28308 states to 28308 states and 40995 transitions. [2021-12-07 01:02:18,766 INFO L78 Accepts]: Start accepts. Automaton has 28308 states and 40995 transitions. Word has length 76 [2021-12-07 01:02:18,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:02:18,766 INFO L470 AbstractCegarLoop]: Abstraction has 28308 states and 40995 transitions. [2021-12-07 01:02:18,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:02:18,766 INFO L276 IsEmpty]: Start isEmpty. Operand 28308 states and 40995 transitions. [2021-12-07 01:02:18,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 01:02:18,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:02:18,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:02:18,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-07 01:02:18,769 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:02:18,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:02:18,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1265240996, now seen corresponding path program 1 times [2021-12-07 01:02:18,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:02:18,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457937642] [2021-12-07 01:02:18,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:02:18,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:02:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:02:18,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:02:18,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:02:18,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457937642] [2021-12-07 01:02:18,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457937642] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:02:18,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:02:18,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:02:18,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701052609] [2021-12-07 01:02:18,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:02:18,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:02:18,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:02:18,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:02:18,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:02:18,954 INFO L87 Difference]: Start difference. First operand 28308 states and 40995 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:02:54,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:02:54,079 INFO L93 Difference]: Finished difference Result 86346 states and 124794 transitions. [2021-12-07 01:02:54,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-07 01:02:54,079 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-07 01:02:54,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:02:54,191 INFO L225 Difference]: With dead ends: 86346 [2021-12-07 01:02:54,192 INFO L226 Difference]: Without dead ends: 86281 [2021-12-07 01:02:54,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=191, Invalid=621, Unknown=0, NotChecked=0, Total=812 [2021-12-07 01:02:54,208 INFO L933 BasicCegarLoop]: 1160 mSDtfsCounter, 8961 mSDsluCounter, 5691 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8961 SdHoareTripleChecker+Valid, 6851 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:02:54,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8961 Valid, 6851 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 01:02:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86281 states. [2021-12-07 01:03:04,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86281 to 28307. [2021-12-07 01:03:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28307 states, 28306 states have (on average 1.4482088603123013) internal successors, (40993), 28306 states have internal predecessors, (40993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:04,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28307 states to 28307 states and 40993 transitions. [2021-12-07 01:03:04,239 INFO L78 Accepts]: Start accepts. Automaton has 28307 states and 40993 transitions. Word has length 77 [2021-12-07 01:03:04,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:03:04,239 INFO L470 AbstractCegarLoop]: Abstraction has 28307 states and 40993 transitions. [2021-12-07 01:03:04,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:04,239 INFO L276 IsEmpty]: Start isEmpty. Operand 28307 states and 40993 transitions. [2021-12-07 01:03:04,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 01:03:04,241 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:03:04,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:03:04,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-07 01:03:04,242 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:03:04,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:04,242 INFO L85 PathProgramCache]: Analyzing trace with hash -447815607, now seen corresponding path program 1 times [2021-12-07 01:03:04,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:04,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950144402] [2021-12-07 01:03:04,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:04,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:03:04,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:03:04,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950144402] [2021-12-07 01:03:04,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950144402] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:03:04,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:03:04,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:03:04,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326192221] [2021-12-07 01:03:04,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:03:04,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:03:04,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:03:04,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:03:04,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:03:04,451 INFO L87 Difference]: Start difference. First operand 28307 states and 40993 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:25,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:03:25,109 INFO L93 Difference]: Finished difference Result 51247 states and 73988 transitions. [2021-12-07 01:03:25,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 01:03:25,110 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-07 01:03:25,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:03:25,178 INFO L225 Difference]: With dead ends: 51247 [2021-12-07 01:03:25,178 INFO L226 Difference]: Without dead ends: 51157 [2021-12-07 01:03:25,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2021-12-07 01:03:25,190 INFO L933 BasicCegarLoop]: 1483 mSDtfsCounter, 5941 mSDsluCounter, 8790 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5941 SdHoareTripleChecker+Valid, 10273 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:03:25,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5941 Valid, 10273 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 01:03:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51157 states. [2021-12-07 01:03:35,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51157 to 28281. [2021-12-07 01:03:35,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28281 states, 28280 states have (on average 1.4483380480905232) internal successors, (40959), 28280 states have internal predecessors, (40959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:35,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28281 states to 28281 states and 40959 transitions. [2021-12-07 01:03:35,448 INFO L78 Accepts]: Start accepts. Automaton has 28281 states and 40959 transitions. Word has length 77 [2021-12-07 01:03:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:03:35,449 INFO L470 AbstractCegarLoop]: Abstraction has 28281 states and 40959 transitions. [2021-12-07 01:03:35,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 28281 states and 40959 transitions. [2021-12-07 01:03:35,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 01:03:35,451 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:03:35,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:03:35,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-07 01:03:35,451 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:03:35,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:35,452 INFO L85 PathProgramCache]: Analyzing trace with hash -345771301, now seen corresponding path program 1 times [2021-12-07 01:03:35,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:35,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023705612] [2021-12-07 01:03:35,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:35,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:35,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:03:35,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:03:35,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023705612] [2021-12-07 01:03:35,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023705612] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:03:35,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:03:35,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:03:35,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309509824] [2021-12-07 01:03:35,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:03:35,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:03:35,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:03:35,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:03:35,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:03:35,652 INFO L87 Difference]: Start difference. First operand 28281 states and 40959 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:02,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:04:02,438 INFO L93 Difference]: Finished difference Result 62845 states and 90697 transitions. [2021-12-07 01:04:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-07 01:04:02,439 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-07 01:04:02,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:04:02,521 INFO L225 Difference]: With dead ends: 62845 [2021-12-07 01:04:02,521 INFO L226 Difference]: Without dead ends: 62748 [2021-12-07 01:04:02,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2021-12-07 01:04:02,533 INFO L933 BasicCegarLoop]: 1109 mSDtfsCounter, 8059 mSDsluCounter, 5034 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8059 SdHoareTripleChecker+Valid, 6143 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:04:02,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8059 Valid, 6143 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 01:04:02,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62748 states. [2021-12-07 01:04:12,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62748 to 28248. [2021-12-07 01:04:12,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 28247 states have (on average 1.4485432081282967) internal successors, (40917), 28247 states have internal predecessors, (40917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:12,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 40917 transitions. [2021-12-07 01:04:12,822 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 40917 transitions. Word has length 77 [2021-12-07 01:04:12,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:04:12,822 INFO L470 AbstractCegarLoop]: Abstraction has 28248 states and 40917 transitions. [2021-12-07 01:04:12,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:12,822 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 40917 transitions. [2021-12-07 01:04:12,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 01:04:12,825 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:04:12,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:12,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-07 01:04:12,825 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:04:12,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:12,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1615837758, now seen corresponding path program 1 times [2021-12-07 01:04:12,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:12,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863811268] [2021-12-07 01:04:12,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:12,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:12,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:12,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:12,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863811268] [2021-12-07 01:04:12,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863811268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:12,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:12,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:04:12,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308373829] [2021-12-07 01:04:12,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:12,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:04:12,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:12,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:04:12,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:04:12,871 INFO L87 Difference]: Start difference. First operand 28248 states and 40917 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:21,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:04:21,109 INFO L93 Difference]: Finished difference Result 47736 states and 69171 transitions. [2021-12-07 01:04:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:04:21,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-07 01:04:21,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:04:21,130 INFO L225 Difference]: With dead ends: 47736 [2021-12-07 01:04:21,130 INFO L226 Difference]: Without dead ends: 20541 [2021-12-07 01:04:21,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:04:21,143 INFO L933 BasicCegarLoop]: 1028 mSDtfsCounter, 2460 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:04:21,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2460 Valid, 1749 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:04:21,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20541 states. [2021-12-07 01:04:29,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20541 to 20535. [2021-12-07 01:04:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20535 states, 20534 states have (on average 1.4340118827310802) internal successors, (29446), 20534 states have internal predecessors, (29446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:29,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20535 states to 20535 states and 29446 transitions. [2021-12-07 01:04:29,226 INFO L78 Accepts]: Start accepts. Automaton has 20535 states and 29446 transitions. Word has length 77 [2021-12-07 01:04:29,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:04:29,226 INFO L470 AbstractCegarLoop]: Abstraction has 20535 states and 29446 transitions. [2021-12-07 01:04:29,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:29,227 INFO L276 IsEmpty]: Start isEmpty. Operand 20535 states and 29446 transitions. [2021-12-07 01:04:29,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-07 01:04:29,229 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:04:29,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:29,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-07 01:04:29,230 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:04:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:29,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1791690671, now seen corresponding path program 1 times [2021-12-07 01:04:29,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:29,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253858577] [2021-12-07 01:04:29,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:29,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:29,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:29,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253858577] [2021-12-07 01:04:29,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253858577] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:29,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:29,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:04:29,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754377320] [2021-12-07 01:04:29,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:29,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:04:29,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:29,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:04:29,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:04:29,262 INFO L87 Difference]: Start difference. First operand 20535 states and 29446 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:44,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:04:44,933 INFO L93 Difference]: Finished difference Result 58045 states and 83592 transitions. [2021-12-07 01:04:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:04:44,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-12-07 01:04:44,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:04:44,976 INFO L225 Difference]: With dead ends: 58045 [2021-12-07 01:04:44,976 INFO L226 Difference]: Without dead ends: 38563 [2021-12-07 01:04:44,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:04:44,991 INFO L933 BasicCegarLoop]: 1024 mSDtfsCounter, 533 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:04:44,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 1500 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:04:45,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38563 states. [2021-12-07 01:04:59,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38563 to 36609. [2021-12-07 01:04:59,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36609 states, 36608 states have (on average 1.4311625874125875) internal successors, (52392), 36608 states have internal predecessors, (52392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36609 states to 36609 states and 52392 transitions. [2021-12-07 01:04:59,803 INFO L78 Accepts]: Start accepts. Automaton has 36609 states and 52392 transitions. Word has length 78 [2021-12-07 01:04:59,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:04:59,803 INFO L470 AbstractCegarLoop]: Abstraction has 36609 states and 52392 transitions. [2021-12-07 01:04:59,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:59,803 INFO L276 IsEmpty]: Start isEmpty. Operand 36609 states and 52392 transitions. [2021-12-07 01:04:59,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-07 01:04:59,805 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:04:59,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:59,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-07 01:04:59,806 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:04:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:59,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1514981376, now seen corresponding path program 1 times [2021-12-07 01:04:59,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:59,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315143656] [2021-12-07 01:04:59,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:59,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:59,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:59,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315143656] [2021-12-07 01:04:59,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315143656] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:59,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:59,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:04:59,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982061383] [2021-12-07 01:04:59,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:59,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:04:59,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:59,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:04:59,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:04:59,837 INFO L87 Difference]: Start difference. First operand 36609 states and 52392 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:05:28,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:05:28,513 INFO L93 Difference]: Finished difference Result 104813 states and 150074 transitions. [2021-12-07 01:05:28,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:05:28,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-07 01:05:28,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:05:28,608 INFO L225 Difference]: With dead ends: 104813 [2021-12-07 01:05:28,608 INFO L226 Difference]: Without dead ends: 69257 [2021-12-07 01:05:28,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:05:28,635 INFO L933 BasicCegarLoop]: 1005 mSDtfsCounter, 414 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:05:28,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 1573 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:05:28,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69257 states. [2021-12-07 01:05:55,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69257 to 65351. [2021-12-07 01:05:55,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65351 states, 65350 states have (on average 1.4228003060443764) internal successors, (92980), 65350 states have internal predecessors, (92980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:05:55,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65351 states to 65351 states and 92980 transitions. [2021-12-07 01:05:55,599 INFO L78 Accepts]: Start accepts. Automaton has 65351 states and 92980 transitions. Word has length 81 [2021-12-07 01:05:55,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:05:55,599 INFO L470 AbstractCegarLoop]: Abstraction has 65351 states and 92980 transitions. [2021-12-07 01:05:55,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:05:55,599 INFO L276 IsEmpty]: Start isEmpty. Operand 65351 states and 92980 transitions. [2021-12-07 01:05:55,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-07 01:05:55,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:05:55,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:05:55,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-07 01:05:55,602 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:05:55,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:05:55,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1391568795, now seen corresponding path program 1 times [2021-12-07 01:05:55,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:05:55,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586254150] [2021-12-07 01:05:55,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:05:55,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:05:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:05:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:05:55,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:05:55,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586254150] [2021-12-07 01:05:55,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586254150] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:05:55,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:05:55,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:05:55,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648445982] [2021-12-07 01:05:55,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:05:55,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:05:55,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:05:55,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:05:55,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:05:55,649 INFO L87 Difference]: Start difference. First operand 65351 states and 92980 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:06:55,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:06:55,683 INFO L93 Difference]: Finished difference Result 137370 states and 193074 transitions. [2021-12-07 01:06:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:06:55,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-12-07 01:06:55,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:06:55,884 INFO L225 Difference]: With dead ends: 137370 [2021-12-07 01:06:55,885 INFO L226 Difference]: Without dead ends: 137368 [2021-12-07 01:06:55,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:06:55,910 INFO L933 BasicCegarLoop]: 1072 mSDtfsCounter, 1021 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 4361 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:06:55,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1021 Valid, 4361 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:06:56,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137368 states. [2021-12-07 01:07:26,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137368 to 69551. [2021-12-07 01:07:26,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69551 states, 69550 states have (on average 1.3972681524083392) internal successors, (97180), 69550 states have internal predecessors, (97180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:07:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69551 states to 69551 states and 97180 transitions. [2021-12-07 01:07:26,790 INFO L78 Accepts]: Start accepts. Automaton has 69551 states and 97180 transitions. Word has length 82 [2021-12-07 01:07:26,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:07:26,790 INFO L470 AbstractCegarLoop]: Abstraction has 69551 states and 97180 transitions. [2021-12-07 01:07:26,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:07:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand 69551 states and 97180 transitions. [2021-12-07 01:07:26,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-07 01:07:26,793 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:07:26,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:07:26,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-07 01:07:26,793 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:07:26,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:07:26,793 INFO L85 PathProgramCache]: Analyzing trace with hash 191580467, now seen corresponding path program 1 times [2021-12-07 01:07:26,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:07:26,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012780010] [2021-12-07 01:07:26,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:07:26,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:07:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:07:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:07:26,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:07:26,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012780010] [2021-12-07 01:07:26,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012780010] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:07:26,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:07:26,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:07:26,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499937833] [2021-12-07 01:07:26,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:07:26,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:07:26,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:07:26,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:07:26,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:07:26,825 INFO L87 Difference]: Start difference. First operand 69551 states and 97180 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:22,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:08:22,656 INFO L93 Difference]: Finished difference Result 195165 states and 272777 transitions. [2021-12-07 01:08:22,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:08:22,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-12-07 01:08:22,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:08:22,852 INFO L225 Difference]: With dead ends: 195165 [2021-12-07 01:08:22,852 INFO L226 Difference]: Without dead ends: 126633 [2021-12-07 01:08:22,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:08:22,903 INFO L933 BasicCegarLoop]: 935 mSDtfsCounter, 480 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:08:22,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1465 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:08:22,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126633 states. [2021-12-07 01:09:18,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126633 to 125231. [2021-12-07 01:09:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125231 states, 125230 states have (on average 1.3777449492933003) internal successors, (172535), 125230 states have internal predecessors, (172535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:09:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125231 states to 125231 states and 172535 transitions. [2021-12-07 01:09:18,293 INFO L78 Accepts]: Start accepts. Automaton has 125231 states and 172535 transitions. Word has length 83 [2021-12-07 01:09:18,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:09:18,293 INFO L470 AbstractCegarLoop]: Abstraction has 125231 states and 172535 transitions. [2021-12-07 01:09:18,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:09:18,294 INFO L276 IsEmpty]: Start isEmpty. Operand 125231 states and 172535 transitions. [2021-12-07 01:09:18,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-07 01:09:18,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:09:18,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:09:18,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-07 01:09:18,298 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-07 01:09:18,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:09:18,298 INFO L85 PathProgramCache]: Analyzing trace with hash 399285156, now seen corresponding path program 1 times [2021-12-07 01:09:18,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:09:18,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032326505] [2021-12-07 01:09:18,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:09:18,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:09:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:09:18,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:09:18,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:09:18,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032326505] [2021-12-07 01:09:18,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032326505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:09:18,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:09:18,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:09:18,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369315937] [2021-12-07 01:09:18,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:09:18,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:09:18,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:09:18,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:09:18,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:09:18,341 INFO L87 Difference]: Start difference. First operand 125231 states and 172535 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:10:51,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:51,778 INFO L93 Difference]: Finished difference Result 248225 states and 342612 transitions. [2021-12-07 01:10:51,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:10:51,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-12-07 01:10:51,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:52,145 INFO L225 Difference]: With dead ends: 248225 [2021-12-07 01:10:52,145 INFO L226 Difference]: Without dead ends: 210915 [2021-12-07 01:10:52,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:10:52,206 INFO L933 BasicCegarLoop]: 1005 mSDtfsCounter, 2921 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2921 SdHoareTripleChecker+Valid, 2599 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:52,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2921 Valid, 2599 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:10:52,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210915 states.